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glPushClientAttrib(3G)	       OpenGL Reference		glPushClientAttrib(3G)

NAME    [Toc]    [Back]

     glPushClientAttrib, glPopClientAttrib - push and pop the client attribute

C SPECIFICATION    [Toc]    [Back]

     void glPushClientAttrib( GLbitfield mask )

PARAMETERS    [Toc]    [Back]

     mask  Specifies a mask that indicates which attributes to save.  Values
	   for mask are	listed below.

C SPECIFICATION    [Toc]    [Back]

     void glPopClientAttrib( void )

DESCRIPTION    [Toc]    [Back]

     glPushClientAttrib	takes one argument, a mask that	indicates which	groups
     of	client-state variables to save on the client attribute stack. Symbolic
     constants are used	to set bits in the mask.  mask is typically
     constructed by OR'ing several of these constants together.	 The special
     mask GL_CLIENT_ALL_ATTRIB_BITS can	be used	to save	all stackable client

     The symbolic mask constants and their associated GL client	state are as
     follows (the second column	lists which attributes are saved):

     GL_CLIENT_PIXEL_STORE_BIT	   Pixel storage modes
     GL_CLIENT_VERTEX_ARRAY_BIT	   Vertex arrays (and enables)

     glPopClientAttrib restores	the values of the client-state variables saved
     with the last glPushClientAttrib.	Those not saved	are left unchanged.

     It	is an error to push attributes onto a full client attribute stack, or
     to	pop attributes off an empty stack.  In either case, the	error flag is
     set, and no other change is made to GL state.

     Initially,	the client attribute stack is empty.

NOTES    [Toc]    [Back]

     glPushClientAttrib	is available only if the GL version is 1.1 or greater.

     Not all values for	GL client state	can be saved on	the attribute stack.
     For example, select and feedback state cannot be saved.

     The depth of the attribute	stack depends on the implementation, but it
     must be at	least 16.

     Use glPushAttrib and glPopAttrib to push and restore state	which is kept
     on	the server. Only pixel storage modes and vertex	array state may	be
     pushed and	popped with glPushClientAttrib and glPopClientAttrib.

									Page 1

glPushClientAttrib(3G)	       OpenGL Reference		glPushClientAttrib(3G)

ERRORS    [Toc]    [Back]

     GL_STACK_OVERFLOW is generated if glPushClientAttrib is called while the
     attribute stack is	full.

     GL_STACK_UNDERFLOW	is generated if	glPopClientAttrib is called while the
     attribute stack is	empty.

ASSOCIATED GETS    [Toc]    [Back]

     glGet with	argument GL_ATTRIB_STACK_DEPTH
     glGet with	argument GL_MAX_CLIENT_ATTRIB_STACK_DEPTH

SEE ALSO    [Toc]    [Back]

     glColorPointer, glDisableClientState, glEdgeFlagPointer,
     glEnableClientState, glGet, glGetError, glIndexPointer, glNormalPointer,
     glNewList,	glPixelStore, glPushAttrib, glTexCoordPointer, glVertexPointer

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