addToolBar, but only once please

[gboelter]

Hello!

With Qt4, is there a way to make sure, that this toolBar

toolBarKunden = new QToolBar(this);
setObjectName(QString::fromUtf8("toolBarKunden"));
addToolBar(Qt::TopToolBarArea, toolBarKunden);
setWindowTitle(QApplication::translate("Erpel", "toolBarKunden", 0, QApplication::UnicodeUTF8));

toolBarKunden = new QToolBar(this);
setObjectName(QString::fromUtf8("toolBarKunden"));
addToolBar(Qt::TopToolBarArea, toolBarKunden);
setWindowTitle(QApplication::translate("Erpel", "toolBarKunden", 0, QApplication::UnicodeUTF8));

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will be created only once?

Something like

if (!toolBarKunden)
{ 
    // createToolBar ...
}

if (!toolBarKunden)
{ 
    // createToolBar ...
}

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Thanks in advance,

Guenther