Re: GetDIBits() return values

Dan Thompson <[email protected]> Wed, 04 Jan 2006 19:14:36 -0800
Newsgroups gmane.games.devel.windows
Message-ID <[email protected]>
Any possibility of threading issues?

If you add a second call to GetDIBits right after (i.e. on skitzo fail, 
try agian), does it work or fail again? Maybe toss a Sleep(1) between 
the two?

If the second one fails, you might be able to disasm into gdi and see 
whats up. Could try VirtualAllocing the memory and protect it vs Write 
on the second call, see if it even touches the memory.

All I got.
-Dan

Brian Hook wrote:

>On Wed, 4 Jan 2006 18:29:22 -0700, Bryan Wagstaff wrote:
>  
>
>>Are you absolutely positive you don't call anything that sets the
>>Windows error before you read it?
>>    
>>
>
>Yeah, very next line is the check and report.  This one is mystifying 
>me, leading me to think it's a memory corruption issue because it only 
>happens about 1% of the time using the exact same inputs.
>
>Brian
>
>
>
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