CharExtra
CharExtra Space to widen all text characters, excluding space band
#include <Quickdraw.h> Color Quickdraw
void CharExtra( extra );
Fixed extra ; character-width adjustment, fractional pixels
CharExtra specifies how much additional width to give all characters .
extra is a Fixed value, specifying the average number of pixels and
fractional pixels to be added to each non-space character
Returns: none

Notes: This modifies the charExtra field of the current CGrafPort structure. The
initial value of this field is 0, but both positive and negative number can be
used. This is a cGrafPort-specific procedure and has no effect when used in
conjunction with an old-style grafPort.