A popular feature in many applications - dimming a screen around a modal dialog. I need to implement this feature on Windows Mobile, C++. The main wnd is fullscreen, but contains many subwindows. How can everything be dimmed around specific rectangle(bounding required modal window) ?
+1
A:
On Win32, you can achieve this by placing a semi-transparent full-screen black Window on top of the desktop. Look for examples of rendering semi-transparent splash screens to find an example. Typically GDI+ is used.
Postscript: I just saw the "Mobile" word in your question - not sure how this will apply in that environment.
Roddy
2009-08-10 14:34:20
+1
A:
You should use the BitBlt api (http://msdn.microsoft.com/pt-br/library/aa930997.aspx) with PaintRect so you can paint the hole screen with a copy of current desktop as a transparent.
Sorry I haven't been more detailed, cause I don't remember how to do it.
--edit: More links to help you out, both provide the answers to your need: http://www.vbforums.com/showthread.php?t=534771 http://www.developer.com/ws/pc/article.php/2190121
Kamia
2009-08-10 14:37:11