Article: Q141725
Product(s): Microsoft C Compiler
Version(s): winnt:4.0
Operating System(s):
Keyword(s): kbcode kbDocView kbMDI kbMFC KbUIDesign kbVC400 kbGrpDSMFCATL
Last Modified: 06-MAY-2001
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The information in this article applies to:
- The Microsoft Foundation Classes (MFC), used with:
- Microsoft Visual C++, 32-bit Editions, version 4.0
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SUMMARY
=======
By design, an AppWizard-generated MDI application will display a new MDI child
window on startup. To turn off this feature, an application needs to use
CCommandLineInfo::FileNothing as the shell command when calling the
ProcessShellCommand() function.
MORE INFORMATION
================
The enum value CCommandLineInfo::FileNothing is missing from the online
documentation of CCommandLineInfo::m_nShellCommand. However, its definition can
be found in the header file \Msdev\Mfc\Include\Afxwin.h.
The ProcessShellCommand() function is called by InitInstance() of any
CWinApp-derived class, so you can use the following sample code to disable the
creation of a new MDI child window at startup:
Sample Code
-----------
BOOL CMyWinApp::InitInstance()
{
...
// Parse command line for standard shell commands, DDE, file open
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);
// Don't display a new MDI child window during startup
if (cmdInfo.m_nShellCommand == CCommandLineInfo::FileNew)
cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing;
// Dispatch commands specified on the command line
if (!ProcessShellCommand(cmdInfo))
return FALSE;
...
}
Additional query words: kbinf 4.00
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Keywords : kbcode kbDocView kbMDI kbMFC KbUIDesign kbVC400 kbGrpDSMFCATL
Technology : kbAudDeveloper kbMFC
Version : winnt:4.0
Issue type : kbinfo
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