Hello everyone,
I’m looking for a solution to use overlay planes under Windows NT. I have a Nvida GeForce-3 graphics card with 64 MB of graphic memory.
I tried to figure out how to obtain an overlay plane as following but failed.
PIXELFORMATDESCRIPTOR pfd1;
int i = DescribePixelFormat( hDC, 0, 0, NULL );
for( int j=1; j<i; j++)
{
DescribePixelFormat( hDC, i, sizeof
(PIXELFORMATDESCRIPTOR), &pfd1 );
if( pfd1.bReserved > 0 )
"I found overlay planes"
else
"No overlay planes"
}
Whenever I runned the above, I always got 0 in the bReserved field. I think the GeForce-3 must have
at least one overlay plane, but it seems not.
If anybody knows how to obtain an overlay plane,
please tell me a detailed solution.
Thanks,
Jae