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# MFnDependencyNode Class Reference
OpenMaya - API module for common classes | FunctionSet classes

This reference page is linked to from the following overview topics: Autodesk Maya 2014, Extension for Autodesk Maya 2013, Autodesk Maya 2013, Creating and Manipulating Objects, The basics, Complex Attributes, Data creators, Meta Data.

Search for all occurrences

## Detailed Description

Dependency node function set.

MFnDependencyNode allows the creation and manipulation of dependency graph nodes. Traversal of the dependency graph is possible using the getConnections method.

This function set does not support creation or removal of connections. MDGModifier should be used for that purpose.

Examples:

  affectsNode.cpp, animExportUtil.cpp, animInfoCmd.cpp, blindComplexDataCmd.cpp, blindDoubleDataCmd.cpp, blindShortDataCmd.cpp, cgfxAttrDef.cpp, cgfxAttrDef.h, cgfxShaderCmd.cpp, cgfxShaderCmd.h, cgfxShaderNode.cpp, closestPointCmd.cpp, closestPointOnCurveCmd.cpp, clothPaintAttrCmd.cpp, componentScaleManip.cpp, customAttrManip.cpp, cvColorNode.cpp, D3DTextureItem.cpp, D3DViewportRenderer.cpp, dagPoseInfoCmd.cpp, deletedMsgCmd.cpp, exportJointClusterDataCmd.cpp, filteredAsciiFile.cpp, findFileTexturesCmd.cpp, findTexturesPerPolygonCmd.cpp, footPrintManip.cpp, getAttrAffectsCmd.cpp, hairCollisionSolver.cpp, hlslShader.cpp, hwDecalBumpShader_NV20.cpp, hwPhongShaderBehavior.cpp, hwReflectBumpShader_NV20.cpp, hwRefractReflectShader_NV20.cpp, hwToonShader_NV20.cpp, hwUnlitShader.cpp, instancerListCmd.cpp, intersectCmd.cpp, latticeNoiseCmd.cpp, listPolyHolesCmd.cpp, lockEvent.cpp, maTranslator.cpp, meshOpCmd.cpp, motionTraceCmd.cpp, moveManip.cpp, MTextureCache.cpp, narrowPolyViewer.h, nodeCreatedCBCmd.cpp, nodeInfoCmd.cpp, NodeMonitor.cpp, offsetNode.cpp, ownerEmitter.cpp, pluginMain.cpp, pointOnMeshCmd.cpp, polyModifierCmd.cpp, polyWriter.cpp, rockingTransformCheck.cpp, rotateManip.cpp, ShadingConnection.cpp, simpleEmitter.cpp, simpleFluidEmitter.cpp, slopeShaderBehavior.cpp, splitUVCmd.cpp, squareScaleManip.cpp, squareScaleManipContext.cpp, surfaceBumpManip.cpp, sweptEmitter.cpp, swissArmyManip.cpp, torusField.cpp, and whatisCmd.cpp.

`#include <MFnDependencyNode.h>`

Inheritance diagram for MFnDependencyNode:
[legend]

List of all members.

## Public Types
enum | MAttrClass { kLocalDynamicAttr = 1, kNormalAttr, kExtensionAttr, kInvalidAttr }
| Specifies the scope of the attribute. More...
enum | MdgTimerState { kTimerOff, kTimerOn, kTimerUninitialized, kTimerInvalidState }
| Possible states for the node's timer. More...
enum | MdgTimerMetric { kTimerMetric_callback, kTimerMetric_compute, kTimerMetric_dirty, kTimerMetric_draw, kTimerMetric_fetch, kTimerMetric_callbackViaAPI, kTimerMetric_callbackNotViaAPI, kTimerMetric_computeDuringCallback, kTimerMetric_computeNotDuringCallback }
| The different timer metrics which can be queried. More...
enum | MdgTimerType { kTimerType_self, kTimerType_inclusive, kTimerType_count }
| The types of timers which can be queried. More...
## Public Member Functions
virtual MFn::Type | type () const
| Function set type.
virtual | ~MFnDependencyNode ()
| Destructor.
| MFnDependencyNode ()
| Default constructor.
| MFnDependencyNode (MObject &object, MStatus *ReturnStatus=NULL)
| Constructor.
MObject | create (const MTypeId &typeId, MStatus *ReturnStatus=NULL)
| Creates a new dependency node with the given type tag.
MObject | create (const MTypeId &typeId, const MString &name, MStatus *ReturnStatus=NULL)
| Creates a new dependency node with the given type tag.
MObject | create (const MString &type, MStatus *ReturnStatus=NULL)
| Creates a new dependency node with the given type.
MObject | create (const MString &type, const MString &name, MStatus *ReturnStatus=NULL)
| Creates a new dependency node with the given type.
MTypeId | typeId (MStatus *ReturnStatus=NULL) const
| Returns the type id of this node.
MString | typeName (MStatus *ReturnStatus=NULL) const
| Returns the type name of this node.
MString | name (MStatus *ReturnStatus=NULL) const
| Returns the name of this node.
MString | pluginName (MStatus *ReturnStatus=NULL) const
| Returns the name of the plug-in this MFnDependendencyNode was defined in.
MString | setName (const MString &name, bool createNamespace=false, MStatus *ReturnStatus=NULL)
| Sets the name of this node.
MStatus | getConnections (MPlugArray &array) const
| Get all of the current connections to this node as an array of plugs.
unsigned int | attributeCount (MStatus *ReturnStatus=NULL) const
| Returns the number of attributes that this node has.
MObject | attribute (unsigned int index, MStatus *ReturnStatus=NULL) const
| Finds the attribute of this node at the given index.
MObject | reorderedAttribute (unsigned int index, MStatus *ReturnStatus=NULL) const
| Some nodes, such as the various animCurve nodes, require that their attributes be set in a specific order for proper operation.
MObject | attribute (const MString &attrName, MStatus *ReturnStatus=NULL) const
| Finds the attribute of this node that has the given name.
MAttrClass | attributeClass (const MObject &attr, MStatus *ReturnStatus=NULL) const
| Returns the class (normal, dynamic, extension) of the specified attribute.
MStatus | getAffectedAttributes (const MObject &attr, MObjectArray &affectedAttributes) const
| Returns an array of attributes that are affected by the attribute passed in.
MStatus | getAffectedByAttributes (const MObject &attr, MObjectArray &affectedByAttributes) const
| Returns an array of attributes that affect the attribute passed in, attr.
MPlug | findPlug (const MObject &attr, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
| Attempt to find a plug for the given attribute.
MPlug | findPlug (const MString &attrName, bool wantNetworkedPlug, MStatus *ReturnStatus=NULL) const
| Attempt to find a plug for the given attribute.
MPlug | findPlug (const MObject &attr, MStatus *ReturnStatus=NULL) const
| This method is obsolete.
MPlug | findPlug (const MString &attrName, MStatus *ReturnStatus=NULL) const
| This method is obsolete.
MStatus | addAttribute (const MObject &attr)
| Add a new dynamic attibute to this node.
MStatus | removeAttribute (const MObject &attr)
| Remove a dynamic attribute from a node.
MPxNode * | userNode (MStatus *ReturnStatus=NULL) const
| If the function set's node is a plug-in node, then this method will extract the MPxNode pointer from it.
bool | isFromReferencedFile (MStatus *ReturnStatus=NULL) const
| Indicates whether or not this node came from a referenced file.
bool | isShared (MStatus *ReturnStatus=NULL) const
| Indicates whether or not this node is shared.
bool | isTrackingEdits (MStatus *ReturnStatus=NULL) const
| Returns whether or not edits on the given node are being tracked by the generalized edit system.
bool | hasUniqueName (MStatus *ReturnStatus=NULL) const
| Indicates whether or not this node's name is unique within the scene.
MString | parentNamespace (MStatus *ReturnStatus=NULL) const
| Returns the name of the namespace in which this node resides.
bool | isLocked (MStatus *ReturnStatus=NULL) const
| Indicates whether or not this node is locked.
MStatus | setLocked (bool locked)
| Locks or unlocks this node.
bool | isNewAttribute (const MObject &attr, MStatus *ReturnStatus=NULL) const
| Indicates whether or not the specified attribute was added to this node within the current scene.
MStatus | setFlag (unsigned int flag, bool state)
| Sets the state of the specified flag for the node.
bool | isFlagSet (unsigned int flag, MStatus *ReturnStatus=NULL) const
| Retrieves the current state of the specified flag for a node.
bool | isDefaultNode (MStatus *ReturnStatus=NULL) const
| Returns true if the node is a default node.
MStatus | setDoNotWrite (bool flag)
| Use this method to mark the "do not write" state of this node.
bool | canBeWritten (MStatus *ReturnStatus=NULL) const
| Returns the do not write state of the node.
bool | hasAttribute (const MString &name, MStatus *ReturnStatus=NULL) const
| Returns true if the node already has an attribute with the given name.
MObject | getAliasAttr (bool force, MStatus *ReturnStatus=NULL)
| Returns the node's alias attribute, which is a special attribute used to store information about the node's attribute aliases.
bool | setAlias (const MString &alias, const MString &name, const MPlug &plug, bool add=true, MStatus *ReturnStatus=NULL)
| Sets or removes an alias (i.e.
bool | findAlias (const MString &alias, MObject &attrObj, MStatus *ReturnStatus=NULL) const
| Retrieves the attribute with the given alias.
bool | getAliasList (MStringArray &strArray, MStatus *ReturnStatus=NULL)
| Returns a list of all attribute aliases for this node.
MString | plugsAlias (const MPlug &plug, MStatus *ReturnStatus=NULL)
| Returns the alias for the plug's attribute or the empty string if that attribute has no alias.
MStatus | setIcon (const MString &filename)
| Associates a custom icon with the node for display in the Maya UI.
MString | icon (MStatus *ReturnStatus=NULL) const
| Returns the custom icon filename associated with the node.
MString | setName (const MString &name, MStatus *ReturnStatus)
| OBSOLETE FUNCTION, NO SCRIPT SUPPORT.
| MFnDependencyNode (const MObject &object, MStatus *ReturnStatus=NULL)
| NO SCRIPT SUPPORT.
bool | getPlugsAlias (const MPlug &plug, MString &aliasName, MStatus *ReturnStatus=NULL)
| NO SCRIPT SUPPORT.
virtual const adsk::Data::Associations * | metadata (MStatus *ReturnStatus=NULL) const
| This method is not available in Python.
virtual MStatus | setMetadata (const adsk::Data::Associations &)
| This method is not available in Python.
virtual MStatus | deleteMetadata ()
| This method is not available in Python.
virtual MStatus | validateMetadata (MString &errors) const
| This method is not available in Python.
MStatus | dgTimerOn ()
| Indicates that this node should collect DG timing data whenever DG timing is enabled.
MStatus | dgTimerOff ()
| Indicates that this node should no longer collect DG timing data when DG timing is enabled.
MdgTimerState | dgTimerQueryState (MStatus *ReturnStatus=NULL)
| The function returns the current on/off state of the node's timer.
MStatus | dgTimerReset ()
| The function resets the dependency graph timers and counters for this node to zero.
double | dgTimer (const MdgTimerMetric timerMetric, const MdgTimerType timerType, MStatus *ReturnStatus=NULL) const
| The function returns the specified timer value for the current node.
MStatus | dgCallbacks (const MdgTimerType type, MStringArray &callbackName, MDoubleArray &value)
| Node callbacks that occur when timing is enabled get logged with the node and can be queried via this method.
MStatus | dgCallbackIds (const MdgTimerType type, const MString &callbackName, MCallbackIdArray &callbackId, MDoubleArray &value)
| This method provides a further breakdown of the per-callback time returned via dgCallbacks() by returning the data on a per-callbackId basis.
MStatus | addAttribute (const MObject &attr, MAttrClass type)
| This method is obsolete.
MStatus | removeAttribute (const MObject &attr, MAttrClass type)
| This method is obsolete.
## Static Public Member Functions
static MString | classification (const MString &nodeTypeName)
| Retrieves the classification string for a node type.
static unsigned int | allocateFlag (const MString pluginName, MStatus *ReturnStatus=NULL)
| Allocates a node flag for sole use by the caller.
static MStatus | deallocateFlag (const MString pluginName, unsigned int flag)
| Deallocates a node flag which was previously allocated by a call to allocateFlag.
static MStatus | deallocateAllFlags (const MString pluginName)
| Deallocates all of the node flags which are currently allocated to the specified plugin.
static void | enableDGTiming (bool enable)
| Globally enables or disables the DG node timing mechanism.
## Protected Member Functions
virtual const char * | className () const
| Class name.

## Member Enumeration Documentation

enum MAttrClass

Search for all occurrences

Specifies the scope of the attribute.

Enumerator:

  kLocalDynamicAttr | Dynamically added, applies to this specific node. Search for all occurrences
  kNormalAttr | Static attribute which is part of the original definition for this node type. Search for all occurrences
  kExtensionAttr | Extension attribute which is part of all nodes of this or derived node types. Search for all occurrences
  kInvalidAttr | None of the above. Search for all occurrences

enum MdgTimerState

Search for all occurrences

Possible states for the node's timer.

Enumerator:

  kTimerOff | Search for all occurrences
  kTimerOn | Search for all occurrences
  kTimerUninitialized | Search for all occurrences
  kTimerInvalidState | Search for all occurrences

enum MdgTimerMetric

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The different timer metrics which can be queried.

Enumerator:

  kTimerMetric_callback | Time spent within node callbacks for this node. Search for all occurrences
  kTimerMetric_compute | Time spent within the compute method for this node. Search for all occurrences
  kTimerMetric_dirty | Time spent propogating dirty messages from this node. Search for all occurrences
  kTimerMetric_draw | Time spent drawing this node. Search for all occurrences
  kTimerMetric_fetch | Time spent fetching data from plugs. Search for all occurrences
  kTimerMetric_callbackViaAPI | Time spent in callbacks which were registered through the API. Search for all occurrences
  kTimerMetric_callbackNotViaAPI | Time spent in callbacks not registered through the API (i.e internal Maya callbacks). Search for all occurrences
  kTimerMetric_computeDuringCallback | Time spent in this node's compute while executing node callbacks on any node. Search for all occurrences
  kTimerMetric_computeNotDuringCallback | Time spent in this nodes compute when not executing any node callbacks on any nodes. Search for all occurrences

enum MdgTimerType

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The types of timers which can be queried.

Enumerator:

  kTimerType_self | Time spent performing an operation, not including any time spent by child operations. For example, if we are drawing a node and that requires a compute, self time will only include the time spent drawing and not the compute time. Self time measures wall-clock time as opposed to CPU time and the values are in seconds. Search for all occurrences
  kTimerType_inclusive | Time spent performing an operation including all time spent by child operations. For example, if we are drawing a node and that requires a compute, inclusive time is the time for the draw plus compute. Inclusive time measure wall-clock time as opposed to CPU time and the values are in seconds. Search for all occurrences
  kTimerType_count | The number of operations that occurred. Ideally we should return an integer when this timer type is queried, but there are two advantages to using a double. 1) it keeps the interface consistent and 2) integer has a fixed upper bound of roughly four billion so using a double allows us to exceed this. Search for all occurrences

## Constructor & Destructor Documentation

MFnDependencyNode | ( | MObject & | object,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters:

  [in] | object | The MObject to attach the function set to
  [out] | ReturnStatus | the return status

Status Codes:
  - MS::kSuccess if the function set is successfully attached
  - MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

MFnDependencyNode | ( | const MObject & | object,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

NO SCRIPT SUPPORT.

Class constructor that initializes the function set to the given MObject.

Constructor

Parameters:

  [in] | object | The MObject to attach the function set to
  [out] | ReturnStatus | the return status

Status Codes:
  - MS::kSuccess if the function set is successfully attached
  - MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

## Member Function Documentation

MFn::Type type | ( |  | ) | const`[virtual]`

Search for all occurrences

Function set type.

Return the class type : MFn::kDependencyNode.

Reimplemented from MFnBase.

Reimplemented in MFnAirField, MFnAmbientLight, MFnAnimCurve, MFnAnisotropyShader, MFnAreaLight, MFnAssembly, MFnBlendShapeDeformer, MFnBlinnShader, MFnCamera, MFnCameraSet, MFnCharacter, MFnCircleSweepManip, MFnClip, MFnContainerNode, MFnCurveSegmentManip, MFnDagNode, MFnDirectionalLight, MFnDirectionManip, MFnDiscManip, MFnDistanceManip, MFnDragField, MFnExpression, MFnField, MFnFluid, MFnFreePointTriadManip, MFnGeometryFilter, MFnGravityField, MFnHikEffector, MFnIkEffector, MFnIkHandle, MFnIkJoint, MFnIkSolver, MFnImageSource, MFnInstancer, MFnLambertShader, MFnLattice, MFnLatticeDeformer, MFnLayeredShader, MFnLight, MFnManip3D, MFnMesh, MFnMotionPath, MFnNewtonField, MFnNonAmbientLight, MFnNonExtendedLight, MFnNurbsCurve, MFnNurbsSurface, MFnParticleSystem, MFnPartition, MFnPfxGeometry, MFnPhongEShader, MFnPhongShader, MFnPointLight, MFnPointOnCurveManip, MFnPointOnSurfaceManip, MFnRadialField, MFnReference, MFnReflectShader, MFnRenderLayer, MFnRenderPass, MFnRotateManip, MFnScaleManip, MFnSet, MFnSkinCluster, MFnSpotLight, MFnStateManip, MFnSubd, MFnToggleManip, MFnTransform, MFnTurbulenceField, MFnUniformField, MFnVolumeAxisField, MFnVolumeLight, MFnVortexField, MFnWeightGeometryFilter, and MFnWireDeformer.

const char * className | ( |  | ) | const`[protected, virtual]`

Search for all occurrences

Class name.

Return the class name : "MFnDependencyNode".

Reimplemented in MFnAirField, MFnAmbientLight, MFnAnimCurve, MFnAnisotropyShader, MFnAreaLight, MFnAssembly, MFnBlendShapeDeformer, MFnBlinnShader, MFnCamera, MFnCameraSet, MFnCharacter, MFnCircleSweepManip, MFnClip, MFnContainerNode, MFnCurveSegmentManip, MFnDagNode, MFnDirectionalLight, MFnDirectionManip, MFnDiscManip, MFnDistanceManip, MFnDragField, MFnExpression, MFnField, MFnFluid, MFnFreePointTriadManip, MFnGeometryFilter, MFnGravityField, MFnHikEffector, MFnIkEffector, MFnIkHandle, MFnIkJoint, MFnIkSolver, MFnImageSource, MFnInstancer, MFnLambertShader, MFnLattice, MFnLatticeDeformer, MFnLayeredShader, MFnLight, MFnManip3D, MFnMesh, MFnMotionPath, MFnNewtonField, MFnNonAmbientLight, MFnNonExtendedLight, MFnNurbsCurve, MFnNurbsSurface, MFnParticleSystem, MFnPartition, MFnPfxGeometry, MFnPhongEShader, MFnPhongShader, MFnPointLight, MFnPointOnCurveManip, MFnPointOnSurfaceManip, MFnRadialField, MFnReference, MFnReflectShader, MFnRenderLayer, MFnRenderPass, MFnRotateManip, MFnScaleManip, MFnSet, MFnSkinCluster, MFnSpotLight, MFnStateManip, MFnSubd, MFnToggleManip, MFnTransform, MFnTurbulenceField, MFnUniformField, MFnVolumeAxisField, MFnVolumeLight, MFnVortexField, MFnWeightGeometryFilter, and MFnWireDeformer.

MObject create | ( | const MTypeId & | typeId,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Creates a new dependency node with the given type tag.

The new node is placed into the dependency graph.

If the node is a DAG node, it will be parented to a transform.

The initial name for the node will be the node's "typeName" followed by a number to make the instance unique. For example, the first transform node created will be named "transform1".

Parameters:

  [in] | typeId | type id of node to be created
  [out] | ReturnStatus | return status

Returns:
  A pointer to the new dependency node object

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure node type is not recognised
  - MS::kLicenseFailure application not licensed for attempted operation
  - MS::kInsufficientMemory out of memory

Examples:
  closestPointOnCurveCmd.cpp, latticeNoiseCmd.cpp, and pointOnMeshCmd.cpp.

MObject create | ( | const MTypeId & | typeId,
|  | const MString & | name,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Creates a new dependency node with the given type tag.

The new node is placed into the dependency graph.

If the node is a DAG node, it will be parented to a transform.

Parameters:

  [in] | typeId | type id of node to be created
  [in] | name | the name to be assigned to the new node If the node's name is not unique, it will be given a unique name by changing its numerical suffix. For example, if this node is called "myNode" and a node by the same name exists, this node will be renamed to "myNode1".
  [out] | ReturnStatus | return status

Returns:
  A pointer to the new dependency node object

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure node type is not recognised
  - MS::kLicenseFailure application not licensed for attempted operation
  - MS::kInsufficientMemory out of memory

MObject create | ( | const MString & | type,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Creates a new dependency node with the given type.

The new node is placed into the dependency graph.

If the node is a DAG node, it will be parented to a transform.

The initial name for the node will be the node's "typeName" followed by a number to make the instance unique. For example, the first transform node created will be named "transform1".

Parameters:

  [in] | type | int name for the type of dependency node
  [out] | ReturnStatus | return status

Returns:
  A pointer to the new dependency node object

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure node type is not recognised
  - MS::kLicenseFailure application not licensed for attempted operation
  - MS::kInsufficientMemory out of memory

Reimplemented in MFnCameraSet.

MObject create | ( | const MString & | type,
|  | const MString & | name,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Creates a new dependency node with the given type.

The new node is placed into the dependency graph.

If the node is a DAG node, it will be parented to a transform.

Parameters:

  [in] | type | int name for the type of dependency node
  [in] | name | the name to be assigned to the new node If the node's name is not unique, it will be given a unique name by changing its numerical suffix. For example, if this node is called "myNode" and a node by the same name exists, this node will be renamed to "myNode1".
  [out] | ReturnStatus | return status

Returns:
  A pointer to the new dependency node object

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure node type is not recognised
  - MS::kLicenseFailure application not licensed for attempted operation
  - MS::kInsufficientMemory out of memory

Reimplemented in MFnCircleSweepManip, MFnDirectionManip, MFnDiscManip, MFnDistanceManip, MFnFreePointTriadManip, MFnPointOnCurveManip, MFnPointOnSurfaceManip, MFnRotateManip, MFnScaleManip, MFnStateManip, and MFnToggleManip.

MTypeId typeId | ( | MStatus * | ReturnStatus = `NULL` | ) | const

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Returns the type id of this node.

The type is is the 4 byte code that is used in the binary file format to identify the type of this node.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The type id of this node

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

Examples:
  cgfxShaderCmd.cpp.

MString typeName | ( | MStatus * | ReturnStatus = `NULL` | ) | const

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Returns the type name of this node.

The string returned is the name of the node type as it is used in the ascii file format.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The type name of this node

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

Examples:
  findFileTexturesCmd.cpp, and slopeShaderBehavior.cpp.

MString name | ( | MStatus * | ReturnStatus = `NULL` | ) | const

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Returns the name of this node.

Note that if the object the instance of this class is attached to is data instead of being in the graph (ie. the object was created by one of the MFn*Data function sets, or was passed to an MPxNode::compute function in a data block) then the name method will not work.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The name of this node

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

Examples:
  animInfoCmd.cpp, cgfxAttrDef.cpp, cgfxShaderCmd.cpp, cleanPerFaceAssignmentCmd.cpp, closestPointOnCurveCmd.cpp, dagMessageCmd.cpp, findFileTexturesCmd.cpp, findTexturesPerPolygonCmd.cpp, hwPhongShaderBehavior.cpp, instancerListCmd.cpp, pointOnMeshCmd.cpp, polyModifierCmd.cpp, slopeShaderBehavior.cpp, and whatisCmd.cpp.

MString pluginName | ( | MStatus * | ReturnStatus = `NULL` | ) | const

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Returns the name of the plug-in this MFnDependendencyNode was defined in.

The name returned is the name of the plug-in on disk, and may contain pathname separators (such as `/') and drive letters (e.g. C:). If this object is not an MFnDependency node, then MS::kFailure is returned instead.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The name of the plug-in

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

MString setName | ( | const MString & | name,
|  | bool | createNamespace = `false`,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Sets the name of this node.

If the new name conflicts with the name of an existing node then the object will be given a unique name based on the supplied name. If the new name ends in a single '#' it will be replaced with a number that ensures the new name is unique.

The name can also have a namespace path, for example "ns:ball". If the namespace already exists, the object will be be moved into that namespace (in addition to being renamed). If the namespace does not exist then the 'createNamespace' parameter will determine how to handle it. If the parameter is true then the namespace will be created (under the root if the namespace name is absolute, or under the current namespace if not) and the object will be moved into the new namespace. If the parameter is false then the object will be moved into the current namespace.

When a transform is renamed, any shape nodes beneath the transform that have the same prefix as the old transform name are also renamed. For example, "rename nurbsSphere1 ball" would rename "nurbsSphere1|nurbsSphereShape1" to "ball|ballShape".

The unique name set for the node is returned.

Note that if the object to which the functionset is attached is data rather than a node (ie. the object was created by one of the MFn*Data function sets, or was passed to an MPxNode::compute function in a data block) then the setName method will not work.

Parameters:

  [in] | name | the new name for the node
  [in] | createNamespace | determine whether or not to create a new namespace when the given name includes a namespace which does not exist.
  [out] | ReturnStatus | return status

Returns:
  The new name of the node.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node
  - MS::kInvalidParameter name is the empty string

MStatus getConnections | ( | MPlugArray & | array | ) | const

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Get all of the current connections to this node as an array of plugs.

Parameters:

  [out] | array | storage for the array of plugs

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure node has no connections

unsigned int attributeCount | ( | MStatus * | ReturnStatus = `NULL` | ) | const

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Returns the number of attributes that this node has.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The attribute count

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid object

MObject attribute | ( | unsigned int | index,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

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Finds the attribute of this node at the given index.

Index order is based on the order in which the attributes were added to the node.

Parameters:

  [in] | index | the index of the attribute
  [out] | ReturnStatus | return status

Returns:
  A pointer to the attribute

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid object, or the index is out of range

Examples:
  cgfxAttrDef.cpp, findFileTexturesCmd.cpp, latticeNoiseCmd.cpp, and polyModifierCmd.cpp.

MObject reorderedAttribute | ( | unsigned int | index,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Some nodes, such as the various animCurve nodes, require that their attributes be set in a specific order for proper operation.

Usually this ordering is only important when the node is being created during file I/O.

The attribute(index) method above returns the attributes according to the order in which they were originally added to the node.

This method returns the attributes according to the reordering, if any, which is required by the node.

Parameters:

  [in] | index | the reordered index of the attribute
  [out] | ReturnStatus | return status

Returns:
  A pointer to the attribute

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid object, or the index is out of range

MObject attribute | ( | const MString & | attrName,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Finds the attribute of this node that has the given name.

Parameters:

  [in] | attrName | name of the attribute to find
  [out] | ReturnStatus | return status

Returns:
  A pointer to the attribute

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter the named attribute was not found
  - MS::kFailure function set does not have a valid object

MFnDependencyNode::MAttrClass attributeClass | ( | const MObject & | attribute,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Returns the class (normal, dynamic, extension) of the specified attribute.

Parameters:

  [in] | attribute | the attribute to check
  [out] | ReturnStatus | return status

Returns:
  The class of the attribute. If the node does not have the specified attribute, then kInvalidAttr is returned as the class.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid object

MStatus getAffectedAttributes | ( | const MObject & | attr,
|  | MObjectArray & | affectedAttributes
| ) |  | const

Search for all occurrences

Returns an array of attributes that are affected by the attribute passed in.

That is, when the given attribute, attr is marked dirty (changed) all the affectedAttributes attributes will also be marked dirty. For nodes defined in plug-ins this call returns all those attributes that were marked as being affected by the given one via the MPxNode::attributeAffects call.

It should be noted that dynamic attributes cannot be handled by this method. This is because the attribute affects dependencies are statically defined when the node is created. An alternate approach which works for dynamic as well as non-dynamic attributes is available through MPxNode::setDependentsDirty override.

Parameters:

  [in] | attr | the attribute to check
  [out] | affectedAttributes | an array of attributes affected by attr

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure operation failed
  - MS::kInvalidParameter function set is not bound to a dependency node or the first parameter is not an attribute

MStatus getAffectedByAttributes | ( | const MObject & | attr,
|  | MObjectArray & | affectedByAttributes
| ) |  | const

Search for all occurrences

Returns an array of attributes that affect the attribute passed in, attr.

That is, when one of the attributes in affectedByAttributes is marked dirty (changed) then attr will also be marked dirty. For nodes defined in plug-ins this call returns all those attributes that were marked as affecting the given one via the MPxNode::attributeAffects call.

It should be noted that dynamic attributes cannot be handled by this method. This is because the attribute affects dependencies are statically defined when the node is created. An alternate approach which works for dynamic as well as non-dynamic attributes is available through MPxNode::setDependentsDirty override.

Parameters:

  [in] | attr | the attribute to check
  [out] | affectedByAttributes | an array of attributes affected by attr

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure operation failed
  - MS::kInvalidParameter function set is not bound to a dependency node or the first parameter is not an attribute

MPlug findPlug | ( | const MObject & | attr,
|  | bool | wantNetworkedPlug,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Attempt to find a plug for the given attribute.

This method will first try to find the networked version of the plug if requested. The networked version of a plug is one that currently exists in the dependency graph at a particular connection point. If a networked version is not found, then a standard non-networked plug is returned.

A non-networked plug is not actually used by the dependency graph, but is used to represent the same connections. Every time an operation is performed on a non-networked plug, a search is made for the networked version of the plug.

Networked and non-networked plugs behave the same, but networked plugs are much more efficient if used for multiple operations.

Networked plugs should be avoided if you will be deleting connections to the plug.

Parameters:

  [in] | attr | attribute whose plug we wish to find
  [in] | wantNetworkedPlug | if true, request a networked plug if it is available
  [out] | ReturnStatus | return status

Returns:
  The plug

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid object, or the plug could not be found

Examples:
  cgfxShaderCmd.cpp, closestPointCmd.cpp, closestPointOnCurveCmd.cpp, D3DTextureItem.cpp, D3DViewportRenderer.cpp, findTexturesPerPolygonCmd.cpp, intersectCmd.cpp, pointOnMeshCmd.cpp, polyExporter.cpp, polyModifierCmd.cpp, polyWriter.cpp, slopeShaderBehavior.cpp, surfaceBumpManip.cpp, and swissArmyManip.cpp.

MPlug findPlug | ( | const MString & | attrName,
|  | bool | wantNetworkedPlug,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Attempt to find a plug for the given attribute.

This method will first try to find the networked version of the plug if requested. The networked version of a plug is one that currently exists in the dependency graph at a particular connection point. If a networked version is not found, then a standard non-networked plug is returned.

A non-networked plug is not actually used by the dependency graph, but is used to represent the same connections. Every time an operation is performed on a non-networked plug, a search is made for the networked version of the plug.

Networked and non-networked plugs behave the same, but networked plugs are much more efficient if used for multiple operations.

Networked plugs should be avoided if you will be deleting connections to the plug.

Parameters:

  [in] | attrName | name of attribute whose plug we wish to find
  [in] | wantNetworkedPlug | if true, request a networked plug if it is available
  [out] | ReturnStatus | return status

Returns:
  The plug

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter the named attribute could not be found
  - MS::kFailure function set does not have a valid object, or the plug could not be found

MPlug findPlug | ( | const MObject & | attr,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

This method is obsolete.

Deprecated:
  Use the MFnDependencyNode::findPlug( MObject&, bool, MStatus* ) method instead.

Parameters:

  [in] | attr | Attribute to return a plug for.
  [out] | ReturnStatus | Status code.

MPlug findPlug | ( | const MString & | attrName,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

This method is obsolete.

Deprecated:
  Use the MFnDependencyNode::findPlug( MString&, bool, MStatus* ) method instead.

Parameters:

  [in] | attrName | Name of attribute to return a plug for.
  [out] | ReturnStatus | Status code.

MStatus addAttribute | ( | const MObject & | attr | ) |

Search for all occurrences

Add a new dynamic attibute to this node.

Parameters:

  [in] | attr | new attribute

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter attr is not a valid attribute object
  - MS::kFailure function set does not have a valid object, or the addition of the new attribute failed

MStatus removeAttribute | ( | const MObject & | attribute | ) |

Search for all occurrences

Remove a dynamic attribute from a node.

Note: After a successful call to this method, the MObject passed to it will have been reset to MObject::kNullObj because the attribute it referenced no longer exists. Thus no function sets, such as MFnAttribute, should be attached to the MObject at the time this call is made.

Parameters:

  [in] | attribute | attribute to remove

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter attr is not a valid attribute object
  - MS::kFailure function set does not have a valid object, or the removal of the attribute failed

MPxNode * userNode | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

If the function set's node is a plug-in node, then this method will extract the MPxNode pointer from it.

This method should only be used on node types that are provided by the plug-in calling this method.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  A pointer to the user data (NULL if not a plug-in node)

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid object, or the removal of the attribute failed

Examples:
  cgfxShaderCmd.cpp.

bool isFromReferencedFile | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Indicates whether or not this node came from a referenced file.

If it did, the node will be marked as read-only in the scene and changes to the node's attributes will be saved in the main scene file, not the referenced file from which the node came.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  true if the node came from a referenced file, false otherwise.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

bool isShared | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Indicates whether or not this node is shared.

This comes into play when you attempt to create a new node with the same name as an existing node. If the existing node is shared, then no new node will be created. If the existing node is not shared, then the new node will be created and given a different name.

For example, if you import several scene files into a single scene, they may all attempt to create their own 'defaultResolution' node. However, since this node is shared, only one such node will be created and the other requests will be ignored.

The concept of "sharing" can also be found in the "createNode -shared" flag found in MEL which, if specified causes an implicit node to be created (or not created, if it is already present).

Parameters:

  [out] | ReturnStatus | return status

Returns:
  true if the node is shared, false otherwise.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

bool isTrackingEdits | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Returns whether or not edits on the given node are being tracked by the generalized edit system.

Referenced nodes and nodes in assemblies that are tracking edits will return true.

Parameters:

  [out] | ReturnStatus | Status code

Returns:
  true if edits on the given node are being tracked, false otherwise.

Status Codes:
  - MS::kSuccess Success
  - MS::kFailure No valid node attached to Function Set

bool hasUniqueName | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Indicates whether or not this node's name is unique within the scene.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  true if the node's name is unique within scene, false otherwise.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

MString parentNamespace | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Returns the name of the namespace in which this node resides.

Namespaces are often used when importing files to prevent name collisions.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The name of the namespace in which this node exists. This will be a colon separated path. If the object is in the root namespace, then an empty string will be returned.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

bool isLocked | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Indicates whether or not this node is locked.

See the setLocked method for more information on what it means for a node to be locked.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  true if the node is locked, false otherwise.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

Reimplemented in MFnReference.

MStatus setLocked | ( | bool | lock | ) |

Search for all occurrences

Locks or unlocks this node.

If a node is locked, it may not be deleted, renamed, or reparented; it may not have attributes added or removed; attributes which are unlocked may not be locked and those which are already locked may not be unlocked.

Parameters:

  [in] | lock | If true then node will be locked.

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

MString classification | ( | const MString & | nodeTypeName | ) | `[static]`

Search for all occurrences

Retrieves the classification string for a node type.

This is a string that is used in dependency nodes that are also shaders to provide more detailed type information to the rendering system. See the documentation for the MEL commands getClassification and listNodeTypes for information on the strings that can be provided.

User-defined nodes set this value through a parameter to MFnPlugin::registerNode.

Parameters:

  [in] | nodeTypeName | The name of the node for which a classification should be retrieved. Since this is a static method, the typeName method of this class can be used for this parameter if it is desired to get the classification for the attached node.

Returns:
  The classification string. If the node does not have an associated classification, an empty string will be returned.

bool isNewAttribute | ( | const MObject & | attr,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Indicates whether or not the specified attribute was added to this node within the current scene.

For nodes from referenced files, this method will only return true if the attribute was added to the node after the reference file was loaded into the scene.

For all other nodes, this method will return true if the attribute is dynamic (i.e. not one of the node's original, permanent attributes).

Parameters:

  [in] | attr | Attribute to check.
  [out] | ReturnStatus | return status

Returns:
  true if the attribute was added within the current scene, false if the attribute is permanent or was added within a referenced file.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter no such attribute on this node
  - MS::kFailure function set does not have a valid node

unsigned int allocateFlag | ( | const MString | pluginName,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | `[static]`

Search for all occurrences

Allocates a node flag for sole use by the caller.

Note that the flag is not specific to any one node but is made available to the caller on all nodes. Furthermore, node flags only persist for the duration of the current Maya session: they are not saved with the scene.

deallocateFlag must be called when a flag is no longer needed.

There are a total of just 8 flags available, so plugins should strive not to hold onto flags for extended periods of time as that might interfere with the needs of other plugins.

When a plugin is unloaded, deallocateAllFlags is automatically invoked to free up any node flags still held by the plugin.

Parameters:

  [in] | pluginName | The name of the plugin which is allocating the flag. A plugin's name can be retrieved by calling MFnPlugin::name() within its initializePlugin() or uninitializePlugin() functions.
  [out] | ReturnStatus | Return status.

Returns:
  The newly-allocated flag.

Status Codes:
  - MS::kSuccess Operation successful.
  - MS::kNotFound No unallocated flags are available.
  - MS::kInvalidParameter The specified plugin is not loaded.

Examples:
  maTranslator.cpp.

MStatus deallocateFlag | ( | const MString | pluginName,
|  | unsigned int | flag
| ) |  | `[static]`

Search for all occurrences

Deallocates a node flag which was previously allocated by a call to allocateFlag.

The flag subsequently becomes available for reallocation and use by someone else.

Parameters:

  [in] | pluginName | The name of the plugin which allocated the flag. A plugin's name can be retrieved by calling MFnPlugin::name() within its initializePlugin() or uninitializePlugin() functions.
  [in] | flag | Flag to deallocate.

Returns:
  Status code.

Status Codes:
  - MS::kSuccess Operation successful.
  - MS::kInvalidParameter Flag number is out of range.
  - MS::kNotFound Flag was not allocated by the plugin.

Examples:
  maTranslator.cpp.

MStatus deallocateAllFlags | ( | const MString | pluginName | ) | `[static]`

Search for all occurrences

Deallocates all of the node flags which are currently allocated to the specified plugin.

The deallocated flags immediately become available for use by any plugin.

Parameters:

  [in] | pluginName | The name of the plugin whose flags are to be deallocated. A plugin's name can be retrieved by calling MFnPlugin::name() within its initializePlugin() or uninitializePlugin() functions.

Returns:
  Status code.

Status Codes:
  - MS::kSuccess Operation successful.
  - MS::kInvalidParemeter The pluginName was invalid.

MStatus setFlag | ( | unsigned int | flag,
|  | bool | state
| ) |  |

Search for all occurrences

Sets the state of the specified flag for the node.

The flag number must have been previously obtained through a call to allocateFlag.

Parameters:

  [in] | flag | flag to set
  [in] | state | new state to which the flag will be set

Returns:
  Status code.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter flag number is out of range
  - MS::kNotFound flag has not been properly allocated
  - MS::kFailure function set does not have a valid node

Examples:
  maTranslator.cpp.

bool isFlagSet | ( | unsigned int | flag,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Retrieves the current state of the specified flag for a node.

The flag must have been previously obtained through a call to allocateFlag.

Parameters:

  [in] | flag | number of the flag to retrieve.
  [out] | ReturnStatus | return status

Returns:
  Current state of the flag

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter flag number is out of range
  - MS::kNotFound flag has not been properly allocated
  - MS::kFailure function set does not have a valid node

bool isDefaultNode | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Returns true if the node is a default node.

A default node is one that Maya creates automatically and does not get saved out with the scene, although some of its attribute values may.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  true if the node is default, false otherwise.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

MStatus setDoNotWrite | ( | bool | flag | ) |

Search for all occurrences

Use this method to mark the "do not write" state of this node.

If set, this node will not be saved when the Maya model is written out.

NOTES: 1. If this node is a DAG and has a parent or children, the "do not write" flag of the parent or children will not be set. It is the developer's responsibility to ensure that the resulting scene file is capable of being read in without errors due to unwritten nodes.

Parameters:

  [in] | flag | True if the node should not be saved.

bool canBeWritten | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Returns the do not write state of the node.

Will be true if the node can be written/exported to scene files.

Note that if a node is marked as being shared (see MFnDependencyNode::isShared) that overrides being marked as not writable. So shared nodes can be written, even if not marked as writable.

Parameters:

  [out] | ReturnStatus | return status

Returns:
  true if the node can be written, false otherwise.

Status Codes:
  - MS::kSuccess operation successful
  - MS::kFailure function set does not have a valid node

bool hasAttribute | ( | const MString & | attrName,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Returns true if the node already has an attribute with the given name.

Parameters:

  [in] | attrName | Name of attribute to be checked.
  [out] | ReturnStatus | return status

Returns:
  true if the node has attribute, false otherwise.

Status Codes:
  - MS::kSuccess if method is successful.
  - MS::kFailure if an object error occurs.

MObject getAliasAttr | ( | bool | force,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Returns the node's alias attribute, which is a special attribute used to store information about the node's attribute aliases.

If the node doesn't have an alias attribute and the 'force' parameter is true, then an alias attribute will be created and returned, otherwise MObject::kNullObj will be returned.

Parameters:

  [in] | force | To indicate whether the alias attr should be created.
  [out] | ReturnStatus | return status

Returns:
  The MObject corresponding to the alias attribute.

Status Codes:
  - MS::kSuccess if method is successful.
  - MS::kFailure if an object error occurs.

bool setAlias | ( | const MString & | alias,
|  | const MString & | name,
|  | const MPlug & | plug,
|  | bool | add = `true`,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Sets or removes an alias (i.e.

an alternative name) for an attribute.

A node can have at most one alias per attribute, so if there is already an alias on the specified attribute it will be replaced by the new one.

Parameters:

  [in] | alias | alternative name for the attribute
  [in] | name | real name of the attribute
  [in] | plug | plug to the attribute
  [in] | add | true to add the alias, false to remove it
  [out] | ReturnStatus | return status

Returns:
  True on success, false on failure. If the ReturnStatus indicates success then false means either that the alias to be added already exists, or the alias to be removed does not exist.

Status Codes:
  - MS::kSuccess if method is successful.
  - MS::kFailure if an object error occurs.

bool findAlias | ( | const MString & | alias,
|  | MObject & | attrObj,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

Search for all occurrences

Retrieves the attribute with the given alias.

If there is no attribute with the given alias, the method will return false and the value of 'attrObj' will be undefined.

Parameters:

  [in] | alias | alternative name of the attribute
  [out] | attrObj | the attribute having the specified alias
  [out] | ReturnStatus | return status

Returns:
  True if the alias was found.

Status Codes:
  - MS::kSuccess if method is successful.
  - MS::kFailure if an object error occurs.

bool getAliasList | ( | MStringArray & | strArray,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Returns a list of all attribute aliases for this node.

The aliases are pairs of strings with the first being the alias and the second being the attribute's real name.

Parameters:

  [out] | strArray | list of aliases
  [out] | ReturnStatus | return status

Returns:
  true if any alias was found, false otherwise.

Status Codes:
  - MS::kSuccess if method is successful.
  - MS::kFailure if an object error occurs.

MString plugsAlias | ( | const MPlug & | plug,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

Returns the alias for the plug's attribute or the empty string if that attribute has no alias.

Parameters:

  [in] | plug | plug for whose attribute we want the alias
  [out] | ReturnStatus | return status. See below.

Returns:
  Alternative name for the attribute, if any.

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.

MStatus setIcon | ( | const MString & | filename | ) |

Search for all occurrences

Associates a custom icon with the node for display in the Maya UI.

Currently the icon only shows up in Outliner panels (the DAG Outliner, Graph Editor and Dope Sheet).

Parameters:

  [in] | filename | specifies the name of the image file defining the icon, or the empty string (i.e. "") to revert to using Maya's default. The filename must be a PNG file (.png) and may either be an absolute pathname or be relative to the XBMLANGPATH environment variable.

Returns:
  Status code

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.
  - MS::kInvalidParameter the filename did not exist, or was not readable, or did not have a .png or .PNG extension.

MString icon | ( | MStatus * | ReturnStatus = `NULL` | ) | const

Search for all occurrences

Returns the custom icon filename associated with the node.

The icon can be assigned using setIcon().

Parameters:

  [out] | ReturnStatus | return status

Returns:
  The custom icon filename, or the empty string (i.e. "") if the node is using Maya's default.

Status Codes:
  - MS::kSuccess if the method is successful
  - MS::kFailure function set does not have a valid node

MString setName | ( | const MString & | name,
|  | MStatus * | ReturnStatus
| ) |  |

Search for all occurrences

OBSOLETE FUNCTION, NO SCRIPT SUPPORT.

This method is obsolete. This method is not available in Python.

Deprecated:
  This function is obsolete, please use the other 'setName' instead

Parameters:

  [in] | name |
  [out] | ReturnStatus |

bool getPlugsAlias | ( | const MPlug & | plug,
|  | MString & | aliasName,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  |

Search for all occurrences

NO SCRIPT SUPPORT.

Returns the alias for the plug's attribute or the empty string if that attribute has no alias.

Python Notes

This method is not supported in Python. Please see plugsAlias()

Parameters:

  [in] | plug | plug for whose attribute we want the alias
  [out] | aliasName | alternative name for the attribute
  [out] | ReturnStatus | return status

Returns:
  true if the alias was found, false otherwise.

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.

const adsk::Data::Associations * metadata | ( | MStatus * | ReturnStatus = `NULL` | ) | const`[virtual]`

Search for all occurrences

This method is not available in Python.

Get the current metadata associated with this node.

Parameters:

  [out] | ReturnStatus | Status code. See below.

Returns:
  Metadata associated with the node, NULL if there isn't any

Status Codes:
  - MS::kSuccess The method was successful.
  - MS::kFailure An object error has occurred.

Reimplemented in MFnMesh.

MStatus setMetadata | ( | const adsk::Data::Associations & | newMetadata | ) | `[virtual]`

Search for all occurrences

This method is not available in Python.

Replace the existing metadata with the given values.

Parameters:

  [in] | newMetadata | The new associated metadata for this node

Returns:
  Status code

Status Codes:
  - MS::kSuccess The method was successful.
  - MS::kFailure The metadata could not be set onto this node.

Reimplemented in MFnMesh.

MStatus deleteMetadata | ( |  | ) | `[virtual]`

Search for all occurrences

This method is not available in Python.

Remove all metadata from this node.

Returns:
  Status code

Status Codes:
  - MS::kSuccess The method was successful.
  - MS::kFailure The metadata could not be removed from this node.

MStatus validateMetadata | ( | MString & | errors | ) | const`[virtual]`

Search for all occurrences

This method is not available in Python.

Verify consistency in all of the existing metadata channels The intended use of this method is to check that the metadata channels are still internally consistent after operations have been performed on any underlying associated data.

It's not meant to provide data validation (e.g. make sure a certain data in a channel is within it's legal range).

Parameters:

  [out] | errors | String containing information about what went wrong

Returns:
  Status code

Status Codes:
  - MS::kSuccess The method was successful.
  - MS::kFailure A consistency error was found. Check error string for details.

Reimplemented in MFnMesh.

void enableDGTiming | ( | bool | enable | ) | `[static]`

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Globally enables or disables the DG node timing mechanism.

There are two levels of control for DG node timing. dgTimerOn() and dgTimerOff() are used to determine which nodes are eligible for timer data collection and this method is used to globally enable or disable the DG node timing mechanism.

For example, if you want to collect timing information for nodes X and Y you would call their dgTimerOn() methods and then call this method to enable timing. Those two nodes would then begin collecting timing data.

If you subsequently call this method to disable timing then X and Y will cease collecting timing data but the data already collected would still be available (e.g. using dgTimer()).

If you later use this method to re-enable timing then X and Y would resume collecting data. Note that this method does not clear the nodes' timing data. If you want a clean start you would have to call dgTimerReset() individually on X and Y.

Parameters:

  [in] | enable | flag to turn timing on or off.

MStatus dgTimerOn | ( |  | ) |

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Indicates that this node should collect DG timing data whenever DG timing is enabled.

See enableDGTiming() for more details.

Note that this method does not reset the timers and counters on the node, it merely enables (or re-enables) timer data collection for the node and subsequent timing values are added to the current timer and counter values. If you want the counters to be reset, use the method dgTimerReset().

To stop the node from collecting further timing data, use dgTimerOff().

Calls to dgTimerOn() and dgTimerOff() are not cumulative. Even if you call dgTimerOn() three times for a node it still only takes a single call to dgTimerOff() to disable its data collection.

Returns:
  Status code

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.

MStatus dgTimerOff | ( |  | ) |

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Indicates that this node should no longer collect DG timing data when DG timing is enabled.

See dgTimerOn() and enableDGTiming() for more details.

Any timing data which has already been collected remains available, for example, using the dgTimer() method.

Returns:
  Status code

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.

MFnDependencyNode::MdgTimerState dgTimerQueryState | ( | MStatus * | ReturnStatus = `NULL` | ) |

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The function returns the current on/off state of the node's timer.

Parameters:

  [out] | ReturnStatus | return status.

Returns:
  The node's timer's current on/off state.

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.

MStatus dgTimerReset | ( |  | ) |

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The function resets the dependency graph timers and counters for this node to zero.

Note that this method does not start or stop timing, it only resets the values to zero. If you want to turn on timing, use the method dgTimerOn(). If you want to turn off timing, use dgTimerOff().

Returns:
  Status code

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kFailure if an object error occurs.

double dgTimer | ( | const MdgTimerMetric | timerMetric,
|  | const MdgTimerType | timerType,
|  | MStatus * | ReturnStatus = `NULL`
| ) |  | const

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The function returns the specified timer value for the current node.

This is the total amount of time spent performing the requested operation since the timer was last reset (see dgTimerReset() for details). There are numerous timers per node and these are referenced by the metric and the timer type.

Parameters:

  [in] | timerMetric | The timing metric we wish to query.
  [in] | timerType | The timer type we wish to query.
  [out] | ReturnStatus | return status

Returns:
  Value of the timer in seconds for types of kTimerType_self and kTimerType_inclusive, and as a simple count for kTimerType_count.

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kInvalidParameter if `timerMetric' or `timerType' is invalid.

MStatus dgCallbacks | ( | const MdgTimerType | timerType,
|  | MStringArray & | callbackName,
|  | MDoubleArray & | value
| ) |  |

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Node callbacks that occur when timing is enabled get logged with the node and can be queried via this method.

See the dgCallbackIds method for getting a further breakdown of the time for an individual callback on this node.

There are several important items of note:

- 1 Due to the large number of node types which exist within Maya, the "internal name" is used instead of the API name. For example, a message the user declares to be of type MDagMessage::kParentRemoved will report as "parentRemovedMsg". In general it should be obvious as to the meaning of the callback name.
- 2 Timing is reported by callback type and is not further broken down by the individual callback methods that are registered against that callback type. Therefore if you note a high-cost callback type, the majority of cost may not be expended in your callback method but rather in other registered callbacks on that type.
- 3 Not all callback types inside Maya that deal with nodes are currently tracked using the node callback timing mechanism. Only the most frequently encountered message types are currently recorded.

The result of calling this method is an array of names and an array of values. There is a one-to-one correspondence between the two arrays.

Parameters:

  [in] | timerType | The timer we want to query, e.g. kTimerType_self for self time.
  [in] | callbackName | Returns an array of callback names that were invoked for this node since the last timer reset.
  [in] | value | Returns an array of timing values. There is a one-to-one correspondence with the `callbackName' array.

Returns:
  Status code

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kInvalidParameter if `timerType' is invalid.

MStatus dgCallbackIds | ( | const MdgTimerType | timerType,
|  | const MString & | callbackName,
|  | MCallbackIdArray & | callbackId,
|  | MDoubleArray & | value
| ) |  |

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This method provides a further breakdown of the per-callback time returned via dgCallbacks() by returning the data on a per-callbackId basis.

We define a "callback" to be an event withing Maya that "callback methods" can be registered with to be invoked when the given event occurs. The registered client information is called a "callbackId". There can be multiple callbackIds registered with a given callback, and a callbackId can be shared amongst multiple nodes or multiple callbacks.

An example of a callback is "attributeChangedMsg", which the user can register callback methods against via MNodeMessage::addAttributeChangedCallback(). The process of registering a callback method returns a callbackId, thus there can be multiple callbacksIds per callback.

The general approach when querying callbackIds is as follows:

- 1 Query the callbacks associated with a given node using MFnDependencyNode::dgCallbacks(). This returns the list of callbacks by name.
- 2 Use this method to query the callbackIds for a given callback on the given node.

The result of calling this method is an array of names and an array of values. There is a one-to-one correspondence between the two arrays.

Parameters:

  [in] | timerType | The timer we want to query, e.g. kTimerType_self for self time.
  [in] | callbackName | Name of the callback to query the callbackIds for. This should be one of the callback names that was returned from MFnDependencyNode::dgCallbacks().
  [in] | callbackId | Returns an array of callbackIds which were invoked for this node and `callbackName' since the last timer reset. There is a one-to-one correspondence with the `value' array. The entries in the list can include callbackIds that are no longer active (e.g. if you unregistered the callbackId), so be careful not to treat these as active callbackIds -- they are for informational purposes only.
  [in] | value | Returns an array of timing values. There is a one-to-one correspondence with the `name' array.

Returns:
  Status code

Status Codes:
  - MS::kSuccess if the method is successful.
  - MS::kInvalidParameter if `timerType' is invalid.
  - MS::kNotFound if `callbackName' was not one of the callbacks that was invoked for this node since the last timer reset.

MStatus addAttribute | ( | const MObject & | attr,
|  | MFnDependencyNode::MAttrClass | type
| ) |  |

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This method is obsolete.

Deprecated:
  Use the MFnDependencyNode::addAttribute( const MObject& ) method instead.

Add a new attibute to this node. Note that this operation will fail if the given type parameter is not MFnDependencyNode::kLocalDynamicAttr. See MNodeClass for adding or removing extension attributes.

Parameters:

  [in] | attr | new attribute
  [in] | type | class of attribute to add

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter attr is not a valid attribute object, or type did not specify a local dynamic attribute type.
  - MS::kFailure function set does not have a valid object, or the addition of the new attribute failed

MStatus removeAttribute | ( | const MObject & | attribute,
|  | MFnDependencyNode::MAttrClass | type
| ) |  |

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This method is obsolete.

Deprecated:
  Use the MFnDependencyNode::removeAttribute( const MObject& ) method instead.

Remove an attribute from a node.

Note: After a successful call to this method, the MObject passed to it will have been reset to MObject::kNullObj because the attribute it referenced no longer exists. Thus no function sets, such as MFnAttribute, should be attached to the MObject at the time this call is made.

Parameters:

  [in] | attribute | attribute to remove
  [in] | type | class of attribute to remove (must be MFnDependencyNode::kLocalDynamicAttr) See MNodeClass for adding or removing extension attributes.

Returns:
  Status code

Status Codes:
  - MS::kSuccess operation successful
  - MS::kInvalidParameter attr is not a valid attribute object, or type did not specify a dynamic attribute type.
  - MS::kFailure function set does not have a valid object, or the removal of the attribute failed

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