Fix Using DDraw to Access the Desktop

[Robert Shearman]

Alexandre Julliard wrote:

>Robert Shearman <rob at codeweavers.com> writes:
>
>  
>
>>Previously, using ddraw to write to a small area of the desktop (or
>>even none at all) would cause the screen to go black because the
>>contents of the screen wasn't copied to the surface before the surface
>>was copied back to the screen. This patch fixes that.
>>    
>>
>
>Of course it's still corrupting the screen, it's just less obvious...
>

I'm pretty sure Windows NT doesn't allow you to have direct access to 
the video memory so surely Windows must be doing it like this too?
How do you suggest to fix the problem?

-- 
Rob Shearman