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MFC Modeless Dialog Problem

In the InitInstance of my app I create a modal dialog, close it, then create a modeless dialog box. This worked when built using static mfc but when I switched the project to shared MFC and using run time library multithreaded dll, I receive an access violation in the second initdialog. A getitem for a clistctrl is failing.

alexo

The source code might help.

richp

ASKER

CCommonLogin login(m_pMainWnd,login_name,server_name);
if (login.DoModal()!=IDOK)
return FALSE;

mktSetManager = new CMarketSetManager;
mktSetManager->Create(IDD_MARKETSET_DIALOG, m_pMainWnd);

Tommy Hui

Where in your source code did you get the access violation?

richp

ASKER

In the InitDialog of the Create(IDD_MARKETSET...
I have a CListCtrl in the dialog and a GetItem fails.

AlFa

In the InitDialog of CMarketSetManager you've to call CDialog::OnInitDialog() before triing to access a control either by a control variable or GetDlgItem.

richp

ASKER

This is already being done...

BOOL CMarketSetManager::OnInitDialog()
{
CDialog::OnInitDialog();

.....

anichini

Where in InitInstance is the dialog code called? Are you sure that m_pMainWnd has a valid window handle at that point?

richp

ASKER

The first dialog is called after the:
      CMainFrame* pMainFrame = new CMainFrame;

      if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
            return FALSE;
      m_pMainWnd = pMainFrame;

m_pMainWnd has a valid pointer after that.

AlFa

So OnInitDialog() is called before dialog is physiqualy created try to put initialisation in OnShowWindow ( with a flag to ensure one shot).

richp

ASKER

The problem was a bad text pointer and length in the GetItem.

ASKER CERTIFIED SOLUTION

RONSLOW

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