Access from CDocument to CMDIChildWnd

Hello,

I'm developing an MDI(MFC) application (with MSDEV 2010) that creates few pairs of doc-view.
From the CDocument object I want to access the CMDIChildWnd object to update the status BAR.
How can I do it ?

Thanks,
Zvika

The best way (in the most cases) to update a status bar is using ON_UPDATE_COMMAND_UI
mechanism.
To access child frame from (not only!) CDocument derive class you can use this code:

Code:

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CMDIChildWnd* pChild = ((CMainFrame*)AfxGetMainWnd())->MDIGetActive();
//or this one
CMDIChildWnd* pChild = ((CMainFrame*)AfxGetApp()->m_pMainWnd)->MDIGetActive();

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Quote:

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Originally Posted by VictorN

The best way (in the most cases) to update a status bar is using ON_UPDATE_COMMAND_UI
mechanism.
To access child frame from (not only!) CDocument derive class you can use this code:

Code:

---

CMDIChildWnd* pChild = ((CMainFrame*)AfxGetMainWnd())->MDIGetActive();
//or this one
CMDIChildWnd* pChild = ((CMainFrame*)AfxGetApp()->m_pMainWnd)->MDIGetActive();

---

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Hello,

MDIGetActive returns only the active frame.
But I have 2 (or more) doc-view pairs all displayed in the same MainFrame.
Each doc runs a thread that has to update its CMDIChildWnd object.

Thanks,
Zvika

Why do you need to update a (chÃ*ld) frame window? :confused:
Every document just holds some data. To diplay this data the View were designed to use. Ro update the views for the current document there is a CDocument::UpdateAllViews method. And the view classes (derived from CView) just use overidden OnUpdate that is called in response to CDocument::UpdateAllViews call.
PLease, read about Doc/View architecture in MSDN.

Quote:

---

Originally Posted by VictorN

Why do you need to update a (chÃ*ld) frame window? :confused:
Every document just holds some data. To diplay this data the View were designed to use. Ro update the views for the current document there is a CDocument::UpdateAllViews method. And the view classes (derived from CView) just use overidden OnUpdate that is called in response to CDocument::UpdateAllViews call.
PLease, read about Doc/View architecture in MSDN.

---

Dear

Quote:

---

Originally Posted by VictorN

Why do you need to update a (chÃ*ld) frame window? :confused:
Every document just holds some data. To diplay this data the View were designed to use. Ro update the views for the current document there is a CDocument::UpdateAllViews method. And the view classes (derived from CView) just use overidden OnUpdate that is called in response to CDocument::UpdateAllViews call.
PLease, read about Doc/View architecture in MSDN.

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Dear Victor,

You help is highly appreciated.

Best regards,
Zvika