Description #

Shifts the image on the graphbuffer a number of times in a direction
indicated below:\
left : 1\
right : 2\
up : 4\
up-left : 5\
up-right : 6\
down : 8\
down-left : 9\
down-right : 10

Note that any area that does not have new contents shifted onto it, for example the last row of the LCD if the image is shifted up, will be left with its existing contents. If screen_update is zero, the screen will not update. Otherwise, it will update.

Technical Details #

Arguments #


Outputs #

Shifts the screen in one of eight possible directions.