Checks whether the provided category ID is one of the categories used by DirectContext3D handle elements.

Namespace: Autodesk.Revit.DB.DirectContext3D
Assembly: RevitAPI (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0)
Since: 2018

Syntax

C#
`public static bool IsADirectContext3DHandleCategory( ElementId categoryId )`

Visual Basic
`Public Shared Function IsADirectContext3DHandleCategory ( _ categoryId As ElementId _ ) As Boolean`

Visual C++
`public: static bool IsADirectContext3DHandleCategory( ElementId^ categoryId )`

True, if the category is valid for DirectContext3D handle elements, false otherwise.

Exceptions

Exception	Condition
Autodesk.Revit.Exceptions ArgumentNullException	A non-optional argument was null