In VC or VC++, suppose I have a simple window (a form). Is it
possible from that window to "see" what's underneath a particular
pixel?
Basically, I want to "import" some pixels underneath my window,
depending on color (or some other, similar properties).
For example, say I want to incorporate and display all green pixels
that may be underneath my window.
Can this be done? Thanks for any links or other information about
this.
Wolfgang
Goleta, CA
1  1063 
Wolfgang wrote: In VC or VC++, suppose I have a simple window (a form). Is it
possible from that window to "see" what's underneath a particular
pixel?
[...]
Not directly. The pixels that make up a window cease to exist they are
obscured.
However, you may have some luck with the WM_PRINT message, assuming
you're using Windows XP. Sending this message asks a window to draw
itself into a DC that you provide.
--
Tim Robinson (MVP, Windows SDK) http://mobius.sourceforge.net/ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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