Intel 82854 GMCH - Manual (Page 29)

Intel® Digital Set Top Box Display Driver 29
User’s Guide for Microsoft* Windows* CE 5.0
7.1.1.1 ICEGD_ESCAPE_ENABLE_PORT
Input Data Structure Output Data Structure Notes
esc_port_ctrl_t esc_status_t
esc_port_ctrl_t port options:
0 – Primary Display
1 – Secondary Display
esc_port_ctrl_t enable options:
0 – disable
1 – enable
esc_status_t status options:
0 – ESCAPE_STATUS_NOERROR
1 – ESCAPE_STATUS_ERROR
Description
This escape code is used to enable/disable primary/secondary display port.
Input Data Structure Definition
The data structure esc_port_ctrl_t should be filled in with port number (0 or 1) and enable (1) /disable (0)
value to configure which port (0 or 1) to be enabled or disabled.
Output Data Structure Definition
User can get return success value or error code from esc_status_t;
Example
esc_port_ctrl_t port;
memset(&port, 0, sizeof(esc_port_ctrl_t));
//choose primary display
port.port = 0;
//enable display port 0
port.enable = 1;
esc_status_t status;
memset(&status, 0, sizeof(esc_status_t));
ExtEscape(
Hdc,
ICEGD_ESCAPE_ENABLE_PORT,
sizeof(esc_port_ctrl_t),
(LPCSTR)&port,
sizeof(esc_status_t),
(LPSTR)&status);
// check the status here for error handling
// …