main.cpp

一大堆的qt程序,在qte2.3.7下全部可以很好地运行

#include <qapplication.h>
#include <qpushbutton.h>
#include <qfont.h>

class MyWidget : public QWidget
{
public:
    MyWidget( QWidget *parent=0, const char *name=0 );
};

MyWidget::MyWidget( QWidget *parent, const char *name )
        : QWidget( parent, name )
{
//    setMinimumSize( 200, 120 );
//    setMaximumSize( 200, 120 );

    QPushButton *quit = new QPushButton( "Quit", this, "quit" );
    quit->setGeometry( 0, 40, 100, 60 );
    quit->setFont( QFont( "Times", 18, QFont::Bold ) );

    connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
}

int main( int argc, char **argv )
{
    QApplication a( argc, argv );

    MyWidget w;
    w.setGeometry( 0, 20, 400, 200 );
    a.setMainWidget( &w );
    w.show();
    return a.exec();
}