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jonny

DirectDraw primary surface

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Hi. I have a problem with the DirectDraw. I need a code what can make a screenshot from a running game. I can locate the game''s HWND, I get the HDC, and I try to use the DirectDraw surface from HDC. But it contains nothing. How can I get the real pixels of the screen ? If anybody have source code or any idea, please send it to me. Thanks, Jonny

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Two options...
You can go the dc handle way which is extremely slow or
lock your primary surace get a pointer from ddsd.lpSurface
and quickly pass it over to an array.

Sorry.. I do not have any source code

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I try to lock the surface, and extract the pixels, but it doesn''t work. Maybe I do something wrong with the DirectDraw. That''s why i ask sources, because I can imagine how should it work, but it didn''t.

Jonny

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Just do it with "Lock (NULL, &ddsd, DDL_WAIT | DDL_SURFACEMEMORYPTR ...)" or something similar to that. You may need to specify that flag to get the "pitch" as well.

Where ddsd is your surface description structure (DDSURFACEDESC2 I believe). Then it will dump a pointer to the start of the data in the ddsd structure *somewhere* (it''ll say in the doc... I forget right now), and then you''re good to go.

Maybe someone could write this out in better code for him? I''m away from my programming comp/docs right now...

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