View update

I have created a toolbar in CMainFrame.
Also I have Document/View system in my project.
when i am hiding toolbar(which handler is in CMainFrame) i should update my View and I did a such thing in my CMainFrame(toolbar hiding handler):
GetActiveView()->GetDocument()->UpdateAllViews(NULL, UPDATE_VIEW);


BUT!?!?!?
I have to check if Document is empty and has no views available else i can't call UpdateAllViews().
don't know how????
maybe to have some IsEmpty variable in CDocument, but not sure how can I access it...
please give me some advice how to update my View after hiding toolbar or how to access CDocument public var from CMainFrame.
Thanks alot

CDocument keeps a linked list of views. So you can call the function GetFirstViewPosition(). If this == NULL, then there are no views.

Wayne

I just thought of something. Check out the function call UpdateAllViews() in the source code. I think it checks to see if any views are attached. If that is the case, then you don't need to worry about it.

Wayne