| CanvasVirtualImageSourceRaiseRegionsInvalidatedIfAny Method |
Raises RegionsInvalidated if there are any invalid regions.
Namespace: Microsoft.Graphics.Canvas.UI.Xaml
Assembly: Microsoft.Graphics.Canvas (in Microsoft.Graphics.Canvas.dll) Version: 0.0.0.0
SyntaxC#
public void RaiseRegionsInvalidatedIfAny()
RemarksIf the RegionsInvalidated handler redraws all invalidated regions then it is not necessary to call this method.
However, if there are ever any situations where it is possible that some regions are not redrawn then this method can be called to obtain the list of invalidated regions.
This method can only be called from the UI thread and it may immediately raise the RegionsInvalidated event.
See Also