Intel 82854 GMCH - Manual (Page 38)

38 Intel® Digital Set Top Box Display Driver
User’s Guide for Microsoft* Windows* CE 5.0
7.1.1.9 ICEGD_ESCAPE_VBI_ENABLE
Input Data Structure Output Data Structure Notes
N/A N/A
Description
This escape code is used to call port driver to enable Line 21 VBI (Vertical Blank Interrupt) data. It is always used
before ICEGD_ESCAPE_VBI_UPDATE with ICEGD_ESCAPE_VBI_DISABLE following.
Example
ExtEscape(
Hdc,
ICEGD_ESCAPE_VBI_ENABLE,
0,
NULL,
0,
NULL
);