The glGetPolygonStipple function returns the polygon stipple pattern.
void glGetPolygonStipple(
GLubyte * mask
);
The glGetPolygonStipple function 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, and pixel map) are not applied to the returned stipple image.
If an error is generated, no change is made to the contents of mask.
The following are the error codes generated and their conditions.
| Error Code | Condition |
|---|---|
| GL_INVALID_OPERATION | glGetPolygonStipple was called between a call to glBegin and the corresponding call to glEnd. |
Windows NT: Use version 3.5 and later.
Windows: Use Windows 95 and later.
Windows CE: Unsupported.
Header: Declared in gl.h.
Import Library: Link with opengl32.lib.
glBegin, glEnd, glPixelStore, glPixelTransfer, glPolygonStipple, glReadPixels