页面栈帧数?
这个似乎只能查看到一个应用程序的帧,不知道隐藏的算不算
QWidgetList QApplication::allWidgets () [static]
Returns a list of all the widgets in the application.
The list is empty (QList::isEmpty()) if there are no widgets.
Note: Some of the widgets may be hidden.
Example:
void updateAllWidgets()
{
foreach (QWidget *widget, QApplication::allWidgets())
widget->update();
}