按钮角色枚举值
图标枚举值
标准按钮枚举
构造函数:
QMessageBox ( QWidget * parent = 0 )
2 QMessageBox ( Icon icon, const QString & title, const QString & text, StandardButtons buttons = NoButton, QWidget * parent = 0, Qt::WindowFlags f = Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint )
4个静态函数:
void about ( QWidget * parent, const QString & title, const QString & text )
void aboutQt ( QWidget * parent, const QString & title = QString() )
StandardButton critical ( QWidget * parent, const QString & title, const QString & text, StandardButtons buttons = Ok, StandardButton defaultButton = NoButton )
StandardButton information ( QWidget * parent, const QString & title, const QString & text, StandardButtons buttons = Ok, StandardButton defaultButton = NoButton )
StandardButton question ( QWidget * parent, const QString & title, const QString & text, StandardButtons buttons = Ok, StandardButton defaultButton = NoButton )
StandardButton warning ( QWidget * parent, const QString & title, const QString & text, StandardButtons buttons = Ok, StandardButton defaultButton = NoButton )
示例
QMessageBox::information(NULL, "Title", "Content", QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes);
QMessageBox::about(NULL, "About", "About this <font color='red'>application</font>");
QMessageBox msgBox;msgBox.setWindowTitle("MsgBox");
msgBox.setText("The document has been modified.");
msgBox.setInformativeText("Do you want to save your changes?");
msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
msgBox.setDefaultButton(QMessageBox::Save);
int ret = msgBox.exec();
switch (ret)
{
case QMessageBox::Save:
// Save was clicked
break;
case QMessageBox::Discard:
// Don't Save was clicked
break;
case QMessageBox::Cancel:
// Cancel was clicked
break;
default:
// should never be reached
break;
}
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