Pinnable Floating Frames - no notifications

Hello,

I like the Pinnable Floating Frames offered by the library (turned on by SetThemedFloatingFrames() method), but cannot use them since I get no notification when such a floating pane is collapsed to its titlebar only or when it's expanded back to fully visible again.

Is there any way for me to be informed of these user actions? Will it be included in 2006 Vol. 4 perhaps?

Thank you for your answer, in advance!

Does anybody else have this problem?
Do you plan to add this feature in some of the nearest versions?

I need to implement some kind of lazy loading in one of my panes, since re-filling contents of this pane is a very expensive operation. That's why I need to know exactly when it is absolutely necessary to fill the child controls of that pane. I need to track visibility of pane contents.

Let me explain:

While only the title bar of the floating pane is visible, controls inside the pane don't need to be filled - since they are not visible yet. They need to be filled just in the moment when user makes the inside of the pane visible by hovering the mouse over the pane's title bar (visibility of pane contents is different from opened/closed state of the pane).

Also when a document gets opened in the app, this pane needs to be re-filled. But not when its contents are not visible to the user! I plan to have several different panes similar to this one in the future, so this lazy loading shall save a considerable CPU time on opening a document.

For autohidden panes I've implemented and I use this lazy loading already (through the expanding and collapsing notifications), for inactive pane tabs this is also solved, but with pinnable floating frames this is not possible. So I cannot use this - otherwise useful - feature of XTP.