Metrologic Optimus R, Руководство по программированию

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80 "C" Programming Guide For Optimus S/R
3.8 LCD
The liquid crystal display (LCD) on the portable terminals is FSTN graphic display. For
different models, it varies slightly in the display capability due to the size of LCD panel.
Model Optimus S Optimus R
Display Capability 100 x 64 dots 128 x 64 dots
3.8.1 Properties
DecContrast
Purpose To decrease the LCD contrast.
Syntax void DecContrast (void);
Example
DecContrast();
Description This routine decreases the LCD contrast by one level each time it is called, and
the minimum value is 0.
Return None
See Also
GetContrast, IncContrast, SetContrast
GetContrast
Purpose To get the contrast level of the LCD.
Syntax int GetContrast (void);
Example int nContrastLevel = GetContrast();
Description
This routine indicates the current contrast level of the LCD.
Return It returns the current contrast level, ranging from 0 to 7.
See Also DecContrast, IncContrast, SetContrast
GetVideoMode
Purpose
To get the display mode of the LCD.
Syntax
int GetVideoMode (void);