8.6.3 Drawing Image Text Characters
Some applications, in particular terminal emulators, need to
print image text in which both the foreground and background bits of
each character are painted.
This prevents annoying flicker on many displays.
To draw 8-bit image text characters in a given drawable, use
XDrawImageString().
To draw 2-byte image text characters in a given drawable, use
XDrawImageString16().
Christophe Tronche, ch.tronche@computer.org