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#1 Posted : Wednesday, September 12, 2007 5:37:52 AM(UTC)


Groups: Registered
Posts: 9

I'm using the C++ ImageViewer v. (5/2 patch).
I enable ActionCallBacks and I succesfully receive mouse events but if I set a default action associated with a mouse event, I don't receive the callback call anymore. See below code:


If I don't set the action for left mouse button, I receive the callback event.
Is this by design and if true is there any other way to intercept events when a default action is set?

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#2 Posted : Sunday, September 16, 2007 2:51:58 AM(UTC)
Maen Hasan

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Posts: 1,326

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The callback only handles user-defined action events. It doesn't work with built-in (default) actions.

If you need to associate the mouse with a built-in action AND get mouse events at the same time, you might be able to do that by sub-classing the container viewer's window. To obtain the window handle, use the LImageViewer::GetWindowHandle() function. For more information about the subclassing, please refer to Microsoft Windows API documentation.

Maen Badwan
LEADTOOLS Technical Support
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