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# Interface: DaylightSimulationUIOps

Interfaces > Core Interfaces > DaylightSimulationUIOps

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The DaylightSimulationUIOps Interface exposes the Daylight Simulation dialog in 3ds Max Design 2009 and higher and provides the following properties and methods.

NoteThis feature is exposed in 3ds Max Design only.

Properties:

    DaylightSimulationUIOps.Visible : bool : Read|Write

Get/set whether the Daylight Simulation dialog is visible ( true ) or hidden ( false ).

Methods:

    <void>DaylightSimulationUIOps.Refresh()

Causes an update of the Daylight Simulation dialog.

#### See Also

- Lighting Analysis and DaylightSimulation Tools