glGetPolygonStipple -- return the polygon stipple pattern
void glGetPolygonStipple(GLubyte *mask)
Returns the stipple pattern.
glGetPolygonStipple returns to mask a 32x32 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 32x32 color
index buffer. Unlike glReadPixels,
however, pixel transfer operations (shift, offset, pixel map) are not applied
to the returned stipple image.
If an error is generated, no change is made to the contents of mask.
GL_INVALID_OPERATION is generated if glGetPolygonStipple is
called between a call to glBegin and the
corresponding call to glEnd.
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© 1995 Uwe Behrens. All rights reserved.