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diff --git a/tutorial/t13/lcdrange.h b/tutorial/t13/lcdrange.h
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+++ b/tutorial/t13/lcdrange.h
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+/****************************************************************
+**
+** Definition of LCDRange class, Qt tutorial 12
+**
+****************************************************************/
+
+#ifndef LCDRANGE_H
+#define LCDRANGE_H
+
+#include <qwidget.h>
+
+class QSlider;
+class QLabel;
+
+
+class LCDRange : public QWidget
+{
+    Q_OBJECT
+public:
+    LCDRange( QWidget *parent=0, const char *name=0 );
+    LCDRange( const char *s, QWidget *parent=0, const char *name=0 );
+
+    int         value() const;
+    const char *text()  const;
+
+public slots:
+    void setValue( int );
+    void setRange( int minVal, int maxVal );
+    void setText( const char * );
+
+signals:
+    void valueChanged( int );
+
+private:
+    void init();
+
+    QSlider     *slider;
+    QLabel      *label;
+};
+
+
+#endif // LCDRANGE_H