GetPixel - Have a problem

I get the DC of the full screen ( - GetDc(0) - )
When I use the GetPixel function everything OK but...
When I play a dos game or playing a simple video the function returns a "Non True" color

What is the problem - and how I can solve it?

thanks in advance

You can use the example from here to check it
http://cboard.cprogramming.com/showp...84&postcount=3

Can you explain what you actually get? Is the value returned the index in the LUT or just some random garbage?

Also, have you tried using this in a STANDARD VGA driver, as the graphcis driver may actually be the source of what GetPixel returns.

--
Mats

Maybe the bits are off?

How I check it?

Quote:

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When I play a dos game or playing a simple video the function returns a "Non True" color

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Maybe find out what bit depth the program runs at. Dos games ran in stuff like 16 or 256 colour mode. AFAIK "true colour" is 24 bit, with a Byte for each colour element. Lower bit depth colour modes tend to have to distribute the RGB bits unevenly. This may cause problems for your GetPixel function. I dont know.