ddex3 and CETK for direcdraw fails while allocating surface.

Hi,

I can run ddex1, ddex2 successfully but ddex3 does not execute.
I am using NODE2D class for managing surfaces.
I allocated buffer for 1080 *1920 images this is 32bpp.
When ddi.dll executes it uses this buffer and I can see the desktop.
When ddex3 executes it again try to allocate buffer from NODE2D class
for GPE_REQUIRE_VIDEO_MEMORY.
This memory already use by desktop so without calling free it again
try to allocate , hence it does not work.
I run CETK too for directdraw but these test cases also fail.
Can anyone let me know how to resolve this issue?
Timely help would be appreciated.



Thanks & Regards
Ajay
.