Updating CTreeCtrl from other view ?
in [MFC]
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From: AliR (VC++ MVP) on 16 Jul 2008 11:03 He can also use this class to send a message directly to the "CClassView". http://www.codeproject.com/KB/docview/Broadcaster.aspx AliR. "David Wilkinson" <no-reply(a)effisols.com> wrote in message news:uEOFkA15IHA.1196(a)TK2MSFTNGP05.phx.gbl... > Ravnock wrote: >> First of all, thanks to everybody for the help. I'm a newbie and I'm a >> bit lost. >> >> CClassView : public CMFCToolBar, the propetary of the CTreeCtrl object, >> is a member of the >> >> class CMainFrame : public CFrameWndEx >> >> To show in the CTreeCtrl the document data, CClassView must have a >> reference of the CDocument object or is there a better way? > > Ravnock: > > You should not refer to an object that is not derived from CView as a > view, nor give it a name like CClassView. > > One (not very good OOP way) would be to do, in your 3D render view: > > CMainFrame* pMainFrame = (CMainFrame*)AfxGetMainWnd(); > > Now you can call any method on the main window, and have the main window > update the tree view (which is the grand-child of the main window, if I am > understanding you). > > A slightly better way (does not require casting) is to send a custom > message to the main window, to accomplish the same purpose. > CWnd::SendMessage() acts like a "universal virtual function" for any > CWnd-derived class. > > -- > David Wilkinson > Visual C++ MVP
From: Joseph M. Newcomer on 16 Jul 2008 20:58 No. In fact, read my essay on my character function code. The CTreeCtrl would definitely NOT have any access to the document! What I would do is have the document do UpdateAllViews, and have the view take responsibility for sending a message to the toolbar to update itself, and the toolbar would use the information in that message to do the update. joe On Wed, 16 Jul 2008 07:07:00 -0700, Ravnock <Ravnock(a)discussions.microsoft.com> wrote: >First of all, thanks to everybody for the help. I'm a newbie and I'm a bit >lost. > >CClassView : public CMFCToolBar, the propetary of the CTreeCtrl object, is a >member of the > >class CMainFrame : public CFrameWndEx > >To show in the CTreeCtrl the document data, CClassView must have a reference >of the CDocument object or is there a better way? > > >"Ravnock" wrote: > >> I have a CTreeCtrl and a 3D render view. >> >> With the mouse, I create elements picking in the 3D render view. This >> elements must be showed in the CTreeCtrl. >> >> What is the process to do it? >> >> I think 3D render view must send a message to the CTreeCtrl. CTreeCtrl >> captures it and update itself. >> >> But what kind of message and how? Joseph M. Newcomer [MVP] email: newcomer(a)flounder.com Web: http://www.flounder.com MVP Tips: http://www.flounder.com/mvp_tips.htm
From: Ravnock on 17 Jul 2008 07:19 I understood the updating mechanism between views and controls in the view ->direction direction. But in the inverse case: I have my CPropertiesWnd class child of CDockablePane, with a reference to a CMFCPropertyGridCtrl. (Like the wizard example). In the CMainFrame class (child of CFrameWndEx) I have a reference to CPropertiesWnd. I change a property value in the property window. What I must do? What are the classes involved and how? Thanks for all "Ravnock" wrote: > I have a CTreeCtrl and a 3D render view. > > With the mouse, I create elements picking in the 3D render view. This > elements must be showed in the CTreeCtrl. > > What is the process to do it? > > I think 3D render view must send a message to the CTreeCtrl. CTreeCtrl > captures it and update itself. > > But what kind of message and how?
From: David Wilkinson on 17 Jul 2008 08:29 Ravnock wrote: > I understood the updating mechanism between views and controls in the view > ->direction direction. > > But in the inverse case: > > I have my CPropertiesWnd class child of CDockablePane, with a reference to a > CMFCPropertyGridCtrl. (Like the wizard example). > > In the CMainFrame class (child of CFrameWndEx) I have a reference to > CPropertiesWnd. > > I change a property value in the property window. > > What I must do? > > What are the classes involved and how? Ravnock: I am not familiar with the new Feature Pack, so I'm not sure I can really help you, but as a point of nomenclature you should not use the word "child" when you mean "sub-class". The parent-child relationship in Windows has nothing whatever to do with the C++ class system. The way controls normally work is that they send messages to their parent. In some cases, e.g. CDialogBar, MFC re-routes these messages to its parent (the grand-parent of the control). -- David Wilkinson Visual C++ MVP
From: Ravnock on 17 Jul 2008 09:32 Sorry for my expressions, almost it's due to my poor english. Really, I get the control message in the control parent. At first I didn't know which were the correct ID and map declaration to get when a property were changed. Finally I discovered it: ON_REGISTERED_MESSAGE(AFX_WM_PROPERTY_CHANGED, OnPropertyChanged) And the member function declaration is the following: LRESULT CPropertiesWnd::OnPropertyChanged( WPARAM wparam, LPARAM lparam){ .... } "David Wilkinson" wrote: > Ravnock wrote: > > I understood the updating mechanism between views and controls in the view > > ->direction direction. > > > > But in the inverse case: > > > > I have my CPropertiesWnd class child of CDockablePane, with a reference to a > > CMFCPropertyGridCtrl. (Like the wizard example). > > > > In the CMainFrame class (child of CFrameWndEx) I have a reference to > > CPropertiesWnd. > > > > I change a property value in the property window. > > > > What I must do? > > > > What are the classes involved and how? > > Ravnock: > > I am not familiar with the new Feature Pack, so I'm not sure I can really help > you, but as a point of nomenclature you should not use the word "child" when you > mean "sub-class". The parent-child relationship in Windows has nothing whatever > to do with the C++ class system. > > The way controls normally work is that they send messages to their parent. In > some cases, e.g. CDialogBar, MFC re-routes these messages to its parent (the > grand-parent of the control). > > -- > David Wilkinson > Visual C++ MVP >
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