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glPushName
Chapter 14
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glPushName
glPushName, glPopName: push and pop the name stack.
C Specification
void glPushName(
GLuint name)
void glPopName(void)
Parameters
name Specifies a name that will be pushed onto the name stack.
Description
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.
glPushName causes 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 GL_SELECT. Calls to
glPushName or glPopName while the render mode is not GL_SELECT are ignored.
Errors
• GL_STACK_OVERFLOW is generated if glPushName iscalled while the name stack
is full.
• GL_STACK_UNDERFLOW is generated if glPopName is called while the name
stack is empty.
• GL_INVALID_OPERATION is generated if glPushName or glPopName is executed
between a call to glBegin and the corresponding call to glEnd.
Associated Gets
glGet with argument GL_NAME_STACK_DEPTH
glGet with argument GL_MAX_NAME_STACK_DEPTH
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