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qwindowsurface_ahigl_p.h Example File
qws/ahigl/qwindowsurface_ahigl_p.h

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 #ifndef QWINDOWSURFACE_AHIGL_P_H
 #define QWINDOWSURFACE_AHIGL_P_H

 //
 //  W A R N I N G
 //  -------------
 //
 // This file is not part of the Qt API.  It exists for the convenience
 // of the QAhiGLWindowSurface class.  This header file may change from
 // version to version without notice, or even be removed.
 //
 // We mean it.
 //

 #include <QtOpenGL/private/qglwindowsurface_qws_p.h>
 #include <GLES/gl.h>
 #include <GLES/egl.h>

 class QAhiGLWindowSurfacePrivate;

 class QAhiGLWindowSurface : public QWSGLWindowSurface
 {
 public:
     QAhiGLWindowSurface(QWidget *widget, EGLDisplay eglDisplay,
                         EGLSurface eglSurface, EGLContext eglContext);
     QAhiGLWindowSurface(EGLDisplay eglDisplay, EGLSurface eglSurface,
                         EGLContext eglContext);
     ~QAhiGLWindowSurface();

     QString key() const { return QLatin1String("ahigl"); }
     void setGeometry(const QRect &rect);
     QPaintDevice *paintDevice();
     void beginPaint(const QRegion &region);
     bool isValid() const;

     QByteArray permanentState() const;
     void setPermanentState(const QByteArray &);

     QImage image() const { return QImage(); }

     GLuint textureId() const;

 private:
     QAhiGLWindowSurfacePrivate *d_ptr;
 };

 #endif // QWINDOWSURFACE_AHIGL_P_H