glutBitmapWidth - returns the width of a bitmap character.
glutBitmapLength returns  the  length  of  a  bitmap  font
string.

glutBitmapLength
	glutBitmapLength(font, string) -> None
glutBitmapWidth
	glutBitmapWidth(font, character) -> None

int glutBitmapWidth(void *font, int character)
int glutBitmapLength(void *font, const unsigned char *string)

font      Bitmap  font  to use.  For valid values, see the
          glutBitmapCharacter description.

character Character to return width of (not confined to  8
          bits).

string    Text  string (8-bit characters), nul terminated.

glutBitmapWidth returns the width in pixels  of  a  bitmap
character  in  a supported bitmap font. While the width of
characters in a font may vary (though fixed width fonts do
not vary), the maximum height characteristics of a partic-
ular font are fixed.

glutBitmapLength returns the length in pixels of a  string
(8-bit  characters).  This length is equivalent to summing
all the widths returned by glutBitmapWidth for each  char-
acter in the string.

glutBitmapCharacter, glutStrokeWidth

Mark J. Kilgard (mjk@nvidia.com)