Qt 小技巧 根据显示文本、信号槽创建QPushButton

此段代码来自Qt自带screenshot例子

/**

  descr：创建QPushButton的实例

  input：text 按钮上显示的内容；receiver 按钮创建信号槽时的槽对象；member 接受信号的槽

  output：void

  return：创建的QPushButton实例

*/

QPushButton *Screenshot::createButton(const QString &text, QWidget *receiver,

                                      const char *member)

{

    QPushButton *button = new QPushButton(text);

    

    button->connect(button, SIGNAL(clicked()), receiver, member);



    return button;

}

具体调用此方法的代码如下

QPushButton *quitScreenshotButton;

quitScreenshotButton = createButton(tr("Quit"), this, SLOT(close()));