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## 4.2 glutCreateSubWindow

`glutCreateSubWindow` creates a subwindow.

Usage

    int glutCreateSubWindow(int win,
                            int x, int y, int width, int height);

`win`
  Identifier of the subwindow's parent window.
`x`
  Window X location in pixels relative to parent window's origin.
`y`
  Window Y location in pixels relative to parent window's origin.
`width`
  Width in pixels.
`height`
  Height in pixels.

Description

`glutCreateSubWindow` creates a subwindow of the window identified by `win` of size `width` and `height` at location `x` and `y` within the current window. Implicitly, the current window is set to the newly created subwindow.

Each created window has a unique associated OpenGL context. State changes to a window's associated OpenGL context can be done immediately after the window is created.

The display state of a window is initially for the window to be shown. But the window's display state is not actually acted upon until `glutMainLoop` is entered. This means until `glutMainLoop` is called, rendering to a created window is ineffective. Subwindows can not be iconified.

Subwindows can be nested arbitrarily deep.

The value returned is a unique small integer identifier for the window. The range of allocated identifiers starts at one.

Next: 4.3 glutSetWindowglutGetWindow Up: 4 Window Management Previous: 4.1 glutCreateWindow