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Corresponds to the nCmdShow parameter passed by Windows to WinMain.

int m_nCmdShow;

You should pass m_nCmdShow as an argument when you call CWnd::ShowWindow for your application's main window. m_nCmdShow is a public variable of type int.

   // The following code fragment is taken from CMyApp::InitInstance. 
   // CMyApp is derived from CWinApp. 

	// The main window has been initialized, so show and update it 
   // using the nCmdShow parameter passed to the application when it 
   // was first launched. 
   // pMainFrame is the main MDI frame window of our app and is derived  
   // from CMDIFrameWnd.

Header: afxwin.h

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