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These functions deal with displaying graphics text.  Graphics text is
displayed as a sequence of line segments, and can be drawn in different
sizes (see the  _setcharsize function), with different orientations (see the
 _settextorient function) and alignments (see the  _settextalign function).
 The functions ending with _w use the window coordinate system; the others
use the view coordinate system.

The following functions are defined:

_gettextextent
    get the bounding rectangle for a graphics text string

_gettextsettings
    get information about the current settings used to display graphics text

_grtext
    display graphics text

_grtext_w
    display graphics text using window coordinates

_setcharsize
    set the character size used to display graphics text

_setcharsize_w
    set the character size in window coordinates used to display graphics
    text

_setcharspacing
    set the character spacing used to display graphics text

_setcharspacing_w
    set the character spacing in window coordinates used to display graphics
    text

_settextalign
    set the alignment used to display graphics text

_settextorient
    set the orientation used to display graphics text

_settextpath
    set the path used to display graphics text