I have an application already running with several panes.

The user is able to load/save placement from files and the application also save the placement each time it is closed.

 

That's OK.

 

Now I have to add 7 more panes to the existing application. So I want to use the already existing placement for old panes and define default placement for new added panes.

 

In the code, I took a pane already existing in previous version and make the new pane to the reference one:

    - paneMgr.AttachPane(newPane, oldPane)

 

And there I have a problem.

If the reference pane is docked (for me on the right), when everything is docked I see that the panes are well attached (the panes are unioned one to the other)

 

If then I try to undock the pane (_ToggleDocking) the pane, the panes are not well attached to the reference one, all the panes are drawn one next to the others. and so I have the 7 panes that take the whole screen.

 

I looked a little bit inside the code and I saw a difference for the Holder of the panes, the new panes have an Holder (return by _GetHolder) that is different from the Holder retrieve for the previous existing panes.

 

Does anyone have an idea on how I can solve that. Thanks!

 

 

 

 

You can set these holders manually if you wish.

Thanks

 

Loop panes and set values for XTP_DOCKINGPANE_INFO structure

 

POSITION pos = dp.GetPaneList().GetHeadPosition();
 while (pos)
 {
  XTP_DOCKINGPANE_INFO& info = dp.GetPaneList().GetNext(pos);
  if (info.pPane == pPane)
     info.pFloatingHolder = ..

 }