GLGETPOLYGONSTIPPLEMachTen Programmer’s ManuGLGETPOLYGONSTIPPLE()

NAME
glGetPolygonStipple - return the polygon stipple pattern

C SPECIFICATION
void glGetPolygonStipple( GLubyte *mask )

delim $$

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

DESCRIPTION
glGetPolygonStipple returns to mask a $32 times 32$ poly-
gon 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, however,
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 con-
tents of mask.

ERRORS
GL_INVALID_OPERATION is generated if glGetPolygonStipple
is executed between the execution of glBegin and the cor-
responding execution of glEnd.

SEE ALSO
glPixelStore, glPixelTransfer, glPolygonStipple, glRead-
Pixels

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