GLStateKeeper.Listener (JOGL, NativeWindow and NEWT APIs)

Enclosing interface:

GLStateKeeper
```
public static interface GLStateKeeper.Listener
```
Listener for preserve and restore notifications.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`glStatePreserveNotify(GLStateKeeper glsk)`	Invoked before preservation.
`void`	`glStateRestored(GLStateKeeper glsk)`	Invoked after restoration.

- Method Detail
  - glStatePreserveNotify
```
void glStatePreserveNotify(GLStateKeeper glsk)
```
    Invoked before preservation.
  - glStateRestored
```
void glStateRestored(GLStateKeeper glsk)
```
    Invoked after restoration.