Intel 82854 GMCH - Manual (Page 45)

Intel® Digital Set Top Box Display Driver 45
User’s Guide for Microsoft* Windows* CE 5.0
7.1.1.15 ICEGD_ESCAPE_SET_HW_ALPHA_COMPAT_MODE
Input Data Structure Output Data Structure Notes
Int N/A
Input can be only :
HW_ALPHA_COMPAT_VIDEO_RENDERER_MODE
0x00000001
Description
This escape code is used to enable the HW plane alpha mode.
Example
int mode;
mode = HW_ALPHA_COMPAT_VIDEO_RENDERER_MODE;
ExtEscape(
Hdc,
ICEGD_ESCAPE_SET_HW_ALPHA_COMPAT_MODE,
sizeof(char),
(LPCSTR)&mode,
0,
NULL);