65 class QRegion;

    65 class QRegion;

    66 class QWidget;

    66 class QWidget;

    67 struct QGLWindowSurfacePrivate;

    67 struct QGLWindowSurfacePrivate;

    68 

    68 

    69 Q_OPENGL_EXPORT QGLWidget* qt_gl_share_widget();

    69 Q_OPENGL_EXPORT QGLWidget* qt_gl_share_widget();

    70 

    71 

    71 class QGLWindowSurfaceGLPaintDevice : public QGLPaintDevice

    72 class QGLWindowSurfaceGLPaintDevice : public QGLPaintDevice

    72 {

    73 {

    73 public:

    74 public:

    74     QPaintEngine* paintEngine() const;

    75     QPaintEngine* paintEngine() const;