Attempt to open the specified joystick device

Poll state of absolute axes

Retrieves the available modes for the specified monitor

Makes the surface considered as XRGB instead of ARGB.

traverse the layout to locate the nearest character to a display position

discard the oldest entry in the undo list

find the x/y location of a character, and remember info about the previous row in case we get a move-up event (for page up, we'll have to rescan)

canoncialize the selection so start <= end

create the png data from post-deflated data

decode one 64-entry block--

get some unsigned bits

set up the kernels

find minimum y position if it starts at x1

rects array must be big enough to accommodate all characters in the given ranges

check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string