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─────Run-Time Library───────────────────────────────────────────────────────
 
     The _getgtextvector function gets the current orientation for font
     text output. The current orientation is used in calls to the
     _outgtext function.
 
     The text-orientation vector, which determines the direction of
     font-text rotation on the screen, is returned in a structure of
     type _xycoord. The <xcoord> and <ycoord> members of the structure
     describe the vector. The text-rotation options are shown below:
 
     (x, y)     Text Orientation
 
     (1,0)      Horizontal text (default)
 
     (0,1)      Rotated 90 degrees counterclockwise
 
     (-1,0)     Rotated 180 degrees
 
     (0,-1)     Rotated 270 degrees counterclockwise
 
     Return Value
 
     The _getgtextvector function returns the current text-orientation
     vector in a structure of type _xycoord.
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