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# clearDrawable()

Disassociates the OpenGL context from its viewport.

```
func clearDrawable()
```

## Discussion

This method disassociates the receiver from any associated `NSView` object. If the receiver is in full-screen or offscreen mode, it exits that mode.

## See Also

[`setOffScreen:width:height:rowbytes:`](/documentation/AppKit/NSOpenGLContext/setOffScreen:width:height:rowbytes:)

Instructs the OpenGL context to render into an offscreen buffer with the specified attributes.

[`setFullScreen`](/documentation/AppKit/NSOpenGLContext/setFullScreen)

Sets the OpenGL context to full-screen mode.


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