glPushClientAttrib(3G) OpenGL Reference glPushClientAttrib(3G)
NAME
glPushClientAttrib, glPopClientAttrib - push and pop the client attribute
stack
C SPECIFICATION
void glPushClientAttrib( GLbitfield mask )
PARAMETERS
mask Specifies a mask that indicates which attributes to save. Values
for mask are listed below.
C SPECIFICATION
void glPopClientAttrib( void )
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. mask is typically
constructed by OR'ing several of these constants together. The special
mask GLCLIENTALLATTRIBBITS 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):
GLCLIENTPIXELSTOREBIT Pixel storage modes
GLCLIENTVERTEXARRAYBIT 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.
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glPushClientAttrib(3G) OpenGL Reference glPushClientAttrib(3G)
ERRORS
GLSTACKOVERFLOW is generated if glPushClientAttrib is called while the
attribute stack is full.
GLSTACKUNDERFLOW is generated if glPopClientAttrib is called while the
attribute stack is empty.
ASSOCIATED GETS
glGet with argument GLATTRIBSTACKDEPTH
glGet with argument GLMAXCLIENTATTRIBSTACKDEPTH
SEE ALSO
glColorPointer, glDisableClientState, glEdgeFlagPointer,
glEnableClientState, glGet, glGetError, glIndexPointer, glNormalPointer,
glNewList, glPixelStore, glPushAttrib, glTexCoordPointer, glVertexPointer
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