Rabbit RabbitCore User Manual page 141

void glFastFillRegion(int left, int top, int width,
int height, char pattern);
Fills a rectangular block in the LCD buffer with the pattern specified. The block left and width parame-
ters must be byte-aligned. Any portion of the block that is outside the LCD display area will be clipped.
PARAMETERS
left is the x coordinate of the top left corner of the block.
top is the y coordinate of the top left corner of the block.
width is the width of the block.
height is the height of the block.
pattern is the bit pattern to display (all black if pattern is 0xFF, all white if pattern is 0x00, and
vertical stripes for any other pattern).
RETURN VALUE
None.
SEE ALSO
glFillScreen, glBlankScreen, glBlock, glBlankRegion
void glBlankRegion(int left, int top, int width,
int height);
Clears a region on the LCD display. The block left and width parameters must be byte-aligned. Any por-
tion of the block that is outside the LCD display area will be clipped.
PARAMETERS
left is the x coordinate of the top left corner of the block (x must be evenly divisible by 8).
top is the y coordinate of the top left corner of the block.
width is the width of the block (must be evenly divisible by 8).
height is the height of the block.
RETURN VALUE
None.
SEE ALSO
glFillScreen, glBlankScreen, glBlock
User's Manual 135