#include <QtGui/QApplication>#include <QMainWindow>#include <QPushButton>#include <QHBoxLayout>#include <QWidget>#include <QCloseEvent>class A:public QMainWindow{public:A();void closeEvent(QCloseEvent *);private:QMainWindow *mainwidow;QWidget *widget;QPushButton *button;QHBoxLayout *layout;};A::A(){mainwidow=new QMainWindow;widget=new QWidget;button=new QPushButton;layout=new QHBoxLayout;layout->addWidget(button);widget->setLayout(layout);mainwidow->setCentralWidget(widget);}void A::closeEvent(QCloseEvent *event){event->ignore();}int main(int argc, char *argv[]){QApplication a(argc, argv);A wm;wm.show();return a.exec();}
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藍山帝景
TA貢獻1843條經驗 獲得超7個贊
A::A(){ //mainwidow=new QMainWindow; // 本身繼承了QMainWindow，沒必要再new widget=new QWidget; button=new QPushButton; layout=new QHBoxLayout; layout->addWidget(button); widget->setLayout(layout); //mainwidow->setCentralWidget(widget); // 把這句改為下面的語句 this->setCentralWidget(widget);} |
運行結果如下：（P.S.不知道是你想要的結果嗎？）
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