Casio IT-2000W Increasing/Decreasing LCD Contrast, Int SYSLcdContrastUp, Int SYSLcdContrastDown

Increasing/Decreasing LCD Contrast

The contrast of the LCD display varies with the ambient temperature. Therefore, this terminal automatically detects the ambient temperature and determines an optimal contrast based on the acquired data. However, it may not immediately react to rapid temperature variations or be ideal for each specific user. This function is used to correct the contrast value, which has been automatically calculated by the system, to an optimal level.

The resulting contrast value adjusted using this function can be acquired via the SYS_GetLcdContrast() function.

SYNTAX

int SYS_LcdContrastUp();

INPUT

None

OUTPUT

=0 Normal

=-2 No response from KBC

=-3 VxD not registered

SYNTAX

int SYS_LcdContrastDown();

INPUT

None

OUTPUT

= 0 Normal

=-2 No response from KBC

=-3 VxD not registered

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