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dbscreen.h Example File

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 #ifndef DBSCREEN_H
 #define DBSCREEN_H

 #include <QLinuxFbScreen>
 #include <QPainter>

 class DBScreen : public QLinuxFbScreen
     DBScreen(int displayId) : QLinuxFbScreen(displayId) {};
     ~DBScreen() {}
     bool initDevice();
     void shutdownDevice();
     void blit(const QImage &image, const QPoint &topLeft, const QRegion &region);
     void solidFill(const QColor &color, const QRegion &region);
     void exposeRegion(QRegion region, int changing);

     QPainter *painter;
     QImage *image;

 #endif // DBSCREEN_H

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Qt 4.4.3