🚀 go-pugleaf

In article <1993Jan07.200849.9892@eng.umd.edu> equine@eng.umd.edu writes:

>
>I am looking for sample code that allows the user to grab a portion of
>the screen (not window) and copy it to the clipboard or possibly
>another application.  I know that there are commercial software
>packages that contain this functionality, but we would then need to 
>worry about licensing agreements, etc. when distributing our application. 
>
>If anyone knows the proper commands/functions to use, has written such
>a function, or knows of a reference book that contains this
>information, please let me know.
>
>Thanks in advance,
>Melinda
>

That's pretty simple.  Just:

1.  Get a DC for the screen using "GetDesktopWindow" followed by "GetDC".
2.  Let the user select the area of the screen by whatever means you
    want.
3.  Use "CreateCompatibleDC" to create a memory DC compatible with the
    screen DC.
4.  Use "CreateCompatibleBitmap" to create a bitmap of the correct
    with and height.
5.  Use "BitBlt" to copy the image from the screen to the bitmap.
6.  Destroy the memory DC.
7.  Put the bitmap handle in the clipboard.

Voila!

Chris
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| Chris Marriott                           | chris@chrism.demon.co.uk    |
| Warrington, UK                           | BIX: cmarriott              |
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