Docking Frames, FormViews, Initialization Sequence

Hi,

I have a docking pane which contains an embedded FormView. The form view depends on OnIntitialUpdate being called once, and only once.

Normally, the MFC calls OnInitalUpdate when InitialUpdateFrame of the frame window is called. When my app runs for the first time, or the state of the docking pane is visible at that time, this works fine.

But when the user closes the pane, and then exists the application, the docking pane framework stores the pane as hidden. And will restore it that way later, delaying the OnDockingPaneNotify until the user makes the pane visible.

When the user now opens the application with the pane hidden, the form view will not be created at first. Hence the OnInitialUpdate message sent by the main frame during its creation will not reach the form view.

And when the user later makes the pane visible, the form view will be created but OnInitialUpdate will not be called.

Is there a standard way to handle this in XTP?
I could create the form view always in OnCreate in the main frame, and later just attach it to the pane.  Or I could introduce some flags to keep track of all this.

But it seems that this is a standard situation (window creation delayed by the docking framework) so there is perhaps something I'm missing.

I've checked the XTP documentation but it does not contain information about anything that's going on in the framework, just the developer's code comments which of course does not contain any conceptual or global overview info.

Hi,

yes this code is executed. But Attach is called with a pointer to the window to attach (in my case, the form view instance):

CSomeForm* psomeform; case IDR_PANE_SOMETHING: {     CSomeForm pform = new CSomeForm();     -.. } pPane->Attach(psomeform);

and inside CXTPDockingPane::Attach (pWnd), with pWnd = the new form view to attach:

pWnd->SendMessageToDescendants(WM_INITIALUPDATE, 0, 0, TRUE, TRUE);

This will send messages only to the descendant windows of the form view, but not the formview itself as it seems?!

When I do a pWnd->SendMessage(WM_INITIALUPDATE, 0, 0) in addition to the SendMessageToDescendants already in place, the OnInitialUpdate of the form is called too.

:(