Article: Q111814
Product(s): Microsoft C Compiler
Version(s): winnt:1.0,2.0,2.1,4.0
Operating System(s):
Keyword(s): kbDocView kbMFC kbVC kbDSupport kbGrpDSMFCATL
Last Modified: 07-MAY-2001
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The information in this article applies to:
- The Microsoft Foundation Classes (MFC), used with:
- Microsoft Visual C++ for Windows, 16-bit edition, versions 1.0, 1.5, 1.52
- Microsoft Visual C++, 32-bit Editions, versions 1.0, 2.0, 2.1, 4.0
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SUMMARY
=======
To get a pointer to the currently active document from an MDI application, use
the CMDIFrameWnd::MDIGetActive() function. MDIGetActive() returns a pointer to
the active CMDIChildWnd. This CMDIChildWnd * enables you to get a valid pointer
to the currently active document via GetActiveDocument().
See the online help and "Class Libraries Reference" for more information about
these functions.
MORE INFORMATION
================
The sample below shows how to get a valid pointer to the currently active
document anywhere within an MDI application.
Sample Code
-----------
/* Compile options needed:
*/
void Some_Function()
{
CMyDoc *pActiveDoc; // CMyDoc derived from CDocument
CMyFrame *pActiveFrame; // CMyFrame derived from CMDIChildWnd
pActiveFrame =(CMyFrame*)
((CMainFrame*)(AfxGetApp()-<m_pMainWnd))-<MDIGetActive();
// MFC 2.5 and later versions contain AfxGetMainWnd(), which
// can be used to gain access to the main window instead of
// "AfxGetApp()->m_pMainWnd
pActiveDoc = (CMyDoc*)pActiveFrame->GetActiveDocument();
}
Additional query words: MFC CDocument kbSweptVC600
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Keywords : kbDocView kbMFC kbVC kbDSupport kbGrpDSMFCATL
Technology : kbAudDeveloper kbMFC
Version : winnt:1.0,2.0,2.1,4.0
Issue type : kbhowto
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