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#1 Posted : Tuesday, June 24, 2008 5:09:40 AM(UTC)

delemed  
delemed

Groups: Registered
Posts: 12


Im working with an RasterImage (displayed in an RasterImageViewer) on which I would like to draw different objects like rectangles, circles etc... How can I handle the repainting of the image in a smart way? Is it possible to repaint only single regions of an RasterImage? Is it possible to stop the "auto-redraw" of my RasterImage or the RasterImageViewer and handle it by myself?

RasterImaging Pro V15

Greets Jonas
 

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#2 Posted : Tuesday, June 24, 2008 9:39:09 AM(UTC)

GregR  
GregR

Groups: Registered, Tech Support, Administrators
Posts: 764


There are several painting events you can handle with the RasterImageViewer.  Since you want to draw other objects on top of the image, you will probably want to use the PostImagePaint event.

If you want to do completely manual painting, you can use the RasterImage.Paint method.  If you did this, you will probably not want to use the RasterImageViewer because you'll have to fight with its events.
 
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