Sends tablet a refresh command with 4 possible modes. Mode 0-Clear, display is cleared at the specified location. Mode 1-Complement, complements display at the specifiedd location. Mode 2-WriteOpaque, transfers contents of the background memory to the LCD display, overwriting the content of the LCD display. Mode 3-WriteTransparent, transfers contents of the background memor in the tablebt to the LCD display and combined in the contents of the LCD display.
Mode-Defined as above (0-4)
XPos-Location in LCD Coordinates (upper left-0,0)
YPos-Same
XSize-X size in LCD pixels
YSize-Y size in LCD pixels
True if checksum received and verified, False if no or incorrect checksum received from tablet.