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#1 Posted : Wednesday, May 4, 2011 11:34:41 AM(UTC)

Travis  
Travis

Groups: Registered, Tech Support
Posts: 215

Was thanked: 3 time(s) in 3 post(s)

Many of our functions/classes take coordinates in image coordinates or bitmap coordinates.  The values need to be from 0, 0 to Image.Width, Image.Height. 
However, in mouse events (mouse up, mouse down, mouse move, etc) the coordinates given as parameter are in client coordinates.  They will range from 0,0 to ImageViewer.Width, ImageViewer.Height.

This demo shows you how to convert from the client coordinate system to the image coordinate system in the mouse move event.  The coordinates for both are displayed in the status strip.  To see the effect you will want to load a large image and either scroll it, or have the viewer fit the image to the screen.

This demo is written in C# as
Visual Studio 2008 - x86 and x64
Visual Studio 2010 - x86 and x64
File Attachment(s):
Client To Bitmap coordinates.zip (19kb) downloaded 33 time(s).
Travis Montgomery
Senior Sales Engineer
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