video_gamma
The current
screen
brightness setting, in percent of the normal brightness.
A gamma correction can be performed by setting this variable, or
the screen can be dimmed or brightened. The setting also affects the
desktop in window mode.
Range:
50 .. 150 (default = 100, medium brightness)
Type:
var
Remarks:
This variable is not supported by all
video cards.
Edition:
C
Example:
function dim_screen_low()
{
while (video_gamma > 50) {
video_gamma -= 5*time_step;
wait(1);
}
}
See also:
video_switch, video_mode,
video_alpha
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