glPushName — push and pop the name stack
The name stack is used during selection mode to allow sets of rendering commands to be uniquely identified. It consists of an ordered set of unsigned integers and is initially empty.
name to be pushed onto the name stack.
glPopName pops one name off the top of the stack.
The maximum name stack depth is implementation-dependent; call
GL_MAX_NAME_STACK_DEPTH to find out the value for a particular
implementation. It is an
error to push a name onto a full stack
or to pop a name off an empty stack.
It is also an error to manipulate the name stack between the execution of
glBegin and the corresponding execution of glEnd.
In any of these cases, the error flag is set and no other change is
made to GL state.
The name stack is always empty while the render mode is not
glPushName or glPopName while the render mode is not
GL_SELECT are ignored.
GL_STACK_OVERFLOW is generated if
glPushName is called while the
name stack is full.
GL_STACK_UNDERFLOW is generated if glPopName is called while the
name stack is empty.
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