Using High-Intensity Background Colors on the EGA, CGA, or VGA

You can enable the use of high-intensity background colors when running under an EGA, CGA, or VGA in a color video mode. The default is not to enable the use of high-intensity background colors and to use blinking foreground colors instead.

To enable the use of high-intensity background colors, call:

vid_hibg(ON);

When high-intensity background colors are enabled, you can use the modifier LIGHT to modify the background colors. You cannot use blinking foreground colors while high-intensity background colors are enabled; the hardware does not support this.

To disable the use of high-intensity background colors, call:

vid_hibg(OFF);

This function operates the same under PCDOS.