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Table of Contents
glPushClientAttrib, glPopClientAttrib - push and pop the client attribute stack
void glPushClientAttrib( GLbitfield mask);
1.1 )
- 1.1
- Specifies a mask that indicates which attributes to save.
Values for 1.1 are listed below.
void glPopClientAttrib(
void); 1.1 )
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.
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 popping client vertex array state apples to all
supported texture units, and the active client texture state.
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.
glGet with argument GL_ATTRIB_STACK_DEPTH
glGet with argument GL_MAX_CLIENT_ATTRIB_STACK_DEPTH
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)
Table of Contents
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