glGetPolygonStipple man page on DigitalUNIX

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glGetPolygonStipple(3G)				       glGetPolygonStipple(3G)

NAME
       glGetPolygonStipple - return the polygon stipple pattern

SYNOPSIS
       void glGetPolygonStipple(
	       GLubyte *mask );

PARAMETERS
       Returns the stipple pattern. The initial value is all 1's.

DESCRIPTION
       glGetPolygonStipple()  returns  to  mask	 a 32 times 32 polygon stipple
       pattern. The pattern is packed into memory as  if  glReadPixels()  with
       both  height  and  width	 of  32,  type	of  GL_BITMAP,	and  format of
       GL_COLOR_INDEX were called, and the stipple pattern were stored	in  an
       internal	 32  times  32 color index buffer. Unlike glReadPixels(), how‐
       ever, pixel transfer operations (shift,	offset,	 pixel	map)  are  not
       applied to the returned stipple image.

NOTES
       If an error is generated, no change is made to the contents of mask.

ERRORS
       GL_INVALID_OPERATION  is generated if glGetPolygonStipple() is executed
       between the execution of glBegin() and the corresponding	 execution  of
       glEnd().

SEE ALSO
       glPixelStore(3),	 glPixelTransfer(3),  glPolygonStipple(3),  glReadPix‐
       els(3)

						       glGetPolygonStipple(3G)
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