Re: bitmap from clipboard to file

"umeca74" wrote:
> I've been trying to save a window snapshot (32-bit) to a BMP file,
> but the saved image is slightly distorted, it looks like the picture is
> shifted to the right by a few pixels, like this:
> http://img97.imageshack.us/img97/5189/clipboard01e.png
>
> here is the code i use (stripped from error checks). It must be
> something silly I do but after 2 days I can't see what!?

Hi Nikos. It's probably best to avoid GlobalSize, as it may return a larger 
value than the size that was originally passed to GlobalAlloc. However, the 
actual problem is that for a 32-bit screen capture, biCompression is set to 
BI_BITFIELDS, therefore the bmiColors array that follows the header contains 
three DWORD bit-masks, meaning that the pixel data starts 12 bytes after the 
bfOffBits value that you calculated.

- Jim 



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