ROGNER UNE IMAGE AVEC QT 4.0

#include <qstring.h>
#include <qapplication.h>
#include <qpushbutton.h>
#include <qmessagebox.h>
#include <qimage.h>

int main(int argc, char **argv)
{

    QApplication    app(argc, argv);
    QPushButton     quit("Hello World!");
    
    QMessageBox::information(NULL, "Message","Début");
    
    QImage* NASA=new QImage();
    if(NASA->load(QString("C:/1.jpg"),"jpg")==true)
    {
        QMessageBox::information(NULL, "Message","Succès");
        QImage NASAtrim=NASA->copy(1000, 1000, 500, 500);
        NASAtrim.save("c:/1trim.jpg","jpg");
    }
    else
    {
        QMessageBox::information(NULL, "Message","Echec");
    }
    
    return app.exec();
}