Focus control in Pane

I have an application that does similar to what you require.

In the main MDI Form,  add the following lines:
   Private Sub MDIForm_MouseMove(etc...)
       DockingPaneMain.HidePane m_MyPane
   End Sub


And you need to set up m_MyPane:
In the Declarations section of the main MDI Form:
      Private m_MyPane as XtremeDoxkingPane.Pane

And when you create the particular Pane you are talking about, set the m_MyPane to it.

Now when you move the mouse off your pane onto the MainMDI form, the pane hides -- even if you have clicked in the textbox.
You may need to expand on the above, eg if you want the pane to hide if you move the mouse over other controls.

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In my app I put all the code for creating and hiding panes into a separate module, and pass a reference to the DockingPaneMain control to it. This allows any of my MDI child forms to create or hide their own different Panes on the Main Form. I think it works very well.

Thank chrisABC for reply.