fglPushClientAttrib(3G) OpenGL Reference fglPushClientAttrib(3G)NAME
fglPushClientAttrib, fglPopClientAttrib - push and pop the client
attribute stack
FORTRAN SPECIFICATION
SUBROUTINE fglPushClientAttrib( INTEGER*4 mask )
PARAMETERS
mask Specifies a mask that indicates which attributes to save. Values
for mask are listed below.
FORTRAN SPECIFICATION
SUBROUTINE fglPopClientAttrib( )
DESCRIPTION
fglPushClientAttrib 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
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)
fglPopClientAttrib restores the values of the client-state variables
saved with the last fglPushClientAttrib. 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
fglPushClientAttrib 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.
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fglPushClientAttrib(3G) OpenGL Reference fglPushClientAttrib(3G)
Use fglPushAttrib and fglPopAttrib 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 fglPushClientAttrib and fglPopClientAttrib.
ERRORS
GL_STACK_OVERFLOW is generated if fglPushClientAttrib is called while the
attribute stack is full.
GL_STACK_UNDERFLOW is generated if fglPopClientAttrib is called while the
attribute stack is empty.
ASSOCIATED GETS
fglGet with argument GL_ATTRIB_STACK_DEPTH
fglGet with argument GL_MAX_CLIENT_ATTRIB_STACK_DEPTH
SEE ALSO
fglColorPointer, fglDisableClientState, fglEdgeFlagPointer,
fglEnableClientState, fglGet, fglGetError, fglIndexPointer,
fglNormalPointer, fglNewList, fglPixelStore, fglPushAttrib,
fglTexCoordPointer, fglVertexPointer
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