Checks whether the provided category ID is one of the categories used by DirectContext3D handle elements.
Namespace: Autodesk.Revit.DB.DirectContext3DAssembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
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
)  | 
Return Value
   True, if the category is valid for DirectContext3D handle elements, false otherwise.
Exceptions
See Also