glPushClientAttrib

GLPUSHCLIENTATTRIB(3G)				       GLPUSHCLIENTATTRIB(3G)



NAME
       glPushClientAttrib,  glPopClientAttrib  -  push	and  pop  the  client
       attribute stack


C SPECIFICATION
       void glPushClientAttrib( GLbitfield mask);  1.1 )


PARAMETERS
       1.1  Specifies a mask that indicates which attributes to save.  Values
	    for 1.1 are listed below.

C SPECIFICATION
       void glPopClientAttrib( void);  1.1 )


DESCRIPTION
       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.  1.1 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 state.

       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
       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.

       When  the GL_ARB_multitexture extension is supported, pushing and pop-
       ping client vertex array state apples to all supported texture  units,
       and the active client texture state.

ERRORS
       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
       glGet with argument GL_ATTRIB_STACK_DEPTH
       glGet with argument GL_MAX_CLIENT_ATTRIB_STACK_DEPTH

SEE ALSO
       glColorPointer(3G),  glDisableClientState(3G),  glEdgeFlagPointer(3G),
       glEnableClientState(3G),		 glGet(3G),	      glGetError(3G),
       glIndexPointer(3G),	   glNormalPointer(3G),	       glNewList(3G),
       glPixelStore(3G),       glPushAttrib(3G),       glTexCoordPointer(3G),
       glVertexPointer(3G)



						       GLPUSHCLIENTATTRIB(3G)