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()) ); }