Is there any easy way to get all child control's mouse click event??

[yxmaomao]

yes, I got it, should be like this:

QList<QWidget*> widgets = qFindChildren<QWidget*>(this);
foreach(QWidget *widget, widgets)
	widget->installEventFilter(this);
installEventFilter(this);

QList<QWidget*> widgets = qFindChildren<QWidget*>(this);
foreach(QWidget *widget, widgets)
	widget->installEventFilter(this);
installEventFilter(this);

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then we can install event filter for all children, that's perfect!
good luck to every one who want to get this.