Felipe Monteiro de Carvalho wrote:
I don't think you will find a solution using only LCL code, because
the canvas doesn't include child windowed controls. You could even try
to rebuild the image using the canvases, but that won't guarantee that
it is the exact image on the screen.
I did a short googling and there is a Qt routine to do what you want in Windows:
http://stackoverflow.com/questions/1774222/taking-screenshot-of-a-specific-window-c-qt
You could see the Qt source code to check what this does for the
Windows part of the solution.
They also recommend checking out the code of KSnapShot to see how to
do this using X11.
I would try that stuff.
If you find the solution it would be great it you document it in the wiki =)
Like I did for screenshot taking:
http://wiki.lazarus.freepascal.org/Developing_with_Graphics#Taking_a_screenshot_of_the_screen
And there was I thinking it was bound to be easy and I was asking a FAQ :-)
OK, so if I composite the small group of visible controls into
something- a TImage on a non-visible form?- what do I do next to
transfer that to the clipboard or a file? I'm still having difficulty
seeing how the various classes etc. hang together.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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