Metrologic Optimus S Programming Manual page 88

82 "C" Programming Guide For Optimus S/R
SetContrast
SetVideoMode
Purpose To set the contrast level of the LCD.
Syntax void SetContrast (int level);
Example SetContrast (4);
This routine specifies the contrast level of the LCD, and the valid value ranges
Description
from 0 (low) to 7 (high).
Return None
DecContrast, GetContrast, IncContrast
See Also
To set the display mode of the LCD.
Purpose
Syntax void SetVideoMode (int mode);
int mode;
SetVideoMode (VIDEO_REVERSE);
Example
This routine determines the display mode of the LCD.
Description
The value of the parameter mode can be one of the following:
VIDEO_NORMAL (0)
VIDEO_REVERSE (1)
Return None
GetVideoMode
See Also
/* video mode, reverse or normal */
/* set reverse video mode */
: Normal mode in use
: Reverse mode in use