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glGetPolygonStipple
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glGetPolygonStipple function

The glGetPolygonStipple function returns the polygon stipple pattern.

Syntax


void WINAPI glGetPolygonStipple(
   GLubyte *mask
);

Parameters

mask

Returns the stipple pattern.

Return value

This function does not return a value.

Error codes

The following error code can be retrieved by the glGetError function.

NameMeaning
GL_INVALID_OPERATION

The function was called between a call to glBegin and the corresponding call to glEnd.

Error codes

The following error code can be retrieved by the glGetError function.

NameMeaning
GL_INVALID_OPERATION

The function was called between a call to glBegin and the corresponding call to glEnd.

Remarks

The glGetPolygonStipple function returns a 32x32 polygon stipple pattern through the mask parameter. 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.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Gl.h

Library

Opengl32.lib

DLL

Opengl32.dll

See also

glBegin
glEnd
glPixelStore
glPixelTransfer
glPolygonStipple
glReadPixels

 

 

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