![Avatar](https://secure.gravatar.com/avatar/609589f329bfa8d05cace5f33cc90296.jpg?s=64&d=identicon&r=g)
Hi,
When I open a document window in the docksite, I register the event PreviewMouseLeftButtonDown of the opened document.
After I drag this document window as floating, the event PreviewMouseLeftButtonDown is fired only when click inside the content of the the document window, when I click the title bar, the event won't fired.
Could someone tell me what happened and how to make the event fire?
Thank you!