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Leadtools Namespace > RasterImage Class : SetOverlayImageSize Method |
'Declaration
Public Sub SetOverlayImageSize( _ ByVal index As Integer, _ ByVal width As Integer, _ ByVal height As Integer _ )
'Usage
Dim instance As RasterImage Dim index As Integer Dim width As Integer Dim height As Integer instance.SetOverlayImageSize(index, width, height)
- (BOOL)setOverlaySize:(LeadSize)size forImageAtIndex:(NSInteger)index error:(NSError **)error
public void setOverlayImageSize( int index, int width, int height )
This method is available in the (Document/Medical only) Toolkits.
Sets the size of the overlay image for a certain index. If the image already has an overlay image at index, it will be freed and the overlay size will be set to width by height pixels. If the image has no overlay image at index, a new empty overlay image will be created with size of width and height. After calling SetOverlayImageSize, you must call UpdateOverlayBits to allocate the overlay bitmap and set the data.
For more information, refer to Overlay Overview.