QT笔记-弹出框

//原型
[static] int QMessageBox::information(QWidget *parent, const QString &title, const QString &text, int button0, int button1 = 0, int button2 = 0)

//用法示例
#include <QMessageBox>

int TextA1::OnShowClicked(bool checked)
{
	QString pbtn_name;
	int k;
	pbtn_name = ui.btnShow->metaObject()->className();   //获取按钮对象的名字

	k = QMessageBox::information(this, "title", "hello!" + pbtn_name, QMessageBox::Ok, QMessageBox::Cancel, QMessageBox::Yes);  //ok，cancle，yes三个按钮
	if (k == QMessageBox::Cancel)                                               //判断返回的按钮参数
		QMessageBox::information(this, "pramater return", "Cancle!");
	else if (k