MFC: Disable New File and Save File in SDI Application
What would be the easiest way to use commands in your code to programmatically disable these two features in your application? Thanks in advance.
+2
stanigator
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3 answers
You can handle the update message:
ON_UPDATE_COMMAND_UI(ID_FILE_NEW, OnUpdateFileNew)
ON_UPDATE_COMMAND_UI(ID_FILE_SAVE, OnUpdateFileSave)
...
void CMainFrame::OnUpdateFileNew(CCmdUI *pCmdUI)
{
pCmdUI->Enable( FALSE );
}
void CMainFrame::OnUpdateFileSave(CCmdUI *pCmdUI)
{
pCmdUI->Enable( FALSE );
}
+4
Alan
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Replace with CWinApp::OnFileNew
your own function as shown below.
BEGIN_MESSAGE_MAP(CMyApp, CWinApp)
ON_COMMAND(ID_APP_ABOUT, &CMyApp::OnAppAbout)
// Standard file based document commands
**//ON_COMMAND(ID_FILE_NEW, &CWinApp::OnFileNew)**
ON_COMMAND(ID_FILE_NEW, &CMyApp::OnFileNew)
ON_COMMAND(ID_FILE_OPEN, &CWinApp::OnFileOpen)
// Standard print setup command
ON_COMMAND(ID_FILE_PRINT_SETUP, &CWinApp::OnFilePrintSetup)
END_MESSAGE_MAP()
void CMyApp::OnFileNew()
{
//Create a static member variable to hold the state. For the first time create a docment. From next time avoid calling CWinApp::OnFileNew();
if( m_bDocCreated == FALSE )
{
CString strMsg;
strMsg.Format( L"Create New DOC" );
AfxMessageBox( strMsg );
CWinApp::OnFileNew();
m_bDocCreated = TRUE;
}
else
{
CFrameWnd* pFrame = (CFrameWnd*)AfxGetMainWnd();
CMyDoc* pDoc = (CMyDoc*)pFrame->GetActiveDocument();
CString strMsg;
strMsg.Format( L"Doc ID = %ld",pDoc->m_lIndex );
AfxMessageBox( strMsg );
}
}
+1
Mahadev
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Call CMenu::EnableMenuItem
with appropriate menu items and MF_DISABLED
as second parameter. Here's the documentation .
-1
Traveling Tech Guy
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