DrawContext.IsAvailable

Public Class

Checks whether the facilities of this class are available for use in the current scope.

Namespace: Autodesk.Revit.DB.DirectContext3D

Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public static bool IsAvailable()

Return Value

Boolean
True if the DrawContext is available for rendering, false otherwise.

Remarks

This class can perform drawing operations and access the state of parameters related to drawing only in lock-step with rendering inside of Revit. As a consequence, the facilities of this class are not available for use outside of the scope determined by the callback RenderScene(View, DisplayStyle). Certain methods of other DirectContext3D objects, e.g., VertexBuffer::Map() are similarly restricted by the same scope.