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Function Reference 4-99
vidBackLightOn
Description
Turns the LCD backlight on or off.
Syntax
void far vidBackLightOn(short sOn);
Parameters
sOn
The state to change the backlight to. Values are
1
(for On)
and
0
(for Off).
Return Values
None
Example
#include <conio.h>
#include <stdio.h>
#include "mmsultra.h"
void main(void)
{
int cInput = 32; // User input
printf("Turn backlight on?\n(Y/N): "); // Prompt user
cInput = _getch(); // Get input
switch (cInput) // Take action
{
case 'N': vidBackLightOn(0);
break;
case 'Y': vidBackLightOn(1);
break;
default: printf("Invalid input");
}
}