User’s Manual
99
Sets display contrast.
NOTE:
This function is not used with the LCD/keypad module since the support circuits
are not available on the LCD/keypad module.
Fills the LCD display screen with a pattern.
PARAMETER
The screen will be set to all black if
pattern
is 0xFF, all white if
pattern
is 0x00, and vertical stripes
for any other pattern.
RETURN VALUE
None.
SEE ALSO
glBlock, glBlankScreen, glPlotPolygon, glPlotCircle
Blanks the LCD display screen (sets LCD display screen to white).
RETURN VALUE
None.
SEE ALSO
glFillScreen, glBlock, glPlotPolygon, glPlotCircle
Draws a rectangular block in the page buffer and on the LCD if the buffer is unlocked. Any portion of the
block that is outside the LCD display area will be clipped.
PARAMETERS
x
is the
x
coordinate of the top left corner of the block.
y
is the
y
coordinate of the top left corner of the block.
bmWidth
is the width of the block.
bmWidth
is the height of the block.
RETURN VALUE
None.
SEE ALSO
glFillScreen, glBlankScreen, glPlotPolygon, glPlotCircle
void glSetContrast(unsigned level);
void glFillScreen(char pattern);
void glBlankScreen(void);
void glBlock(int x, int y, int bmWidth,
int bmHeight);
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