QT 4 设定按钮大小，设定wigdet 大小例子（调试通过）

class Mywidget : public QWidget

{

    Q_OBJECT

public:

    explicit Mywidget(QWidget *parent = 0);

signals:

public slots:

private:

    QPushButton* TestPushButton;

};

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    Mywidget TestMywidget(0);

    TestMywidget.setGeometry(1000, 1000, 1000, 1000 );

    TestMywidget.show();

    return a.exec();

  //  while(1);

}

s

Mywidget::Mywidget(QWidget *parent) :

    QWidget(parent)

{

    setMinimumSize( 1000, 1000 );/*设定QWidget 最小值*/

    setMaximumSize( 1000, 1000 );/*设定QWidget 最大值*/

    TestPushButton = new QPushButton("TEST", this);

    TestPushButton->setGeometry( 100, 100, 500, 500 );//设定按钮大小

    TestPushButton->setFont(QFont( "Times", 18, QFont::Bold ) );

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

}