Getting problem with RegisterShellFileTypes() in MFC Dialog based application. [modified]

[C++ Programming]

i created one dialog based application. In that Dlg App class i am calling RegisterShellFileTypes(), in CWInApp::initInstace.

But application is crashing due to no poniter to document class.
code is like this :


CDesktopWallpaperDlg dlg;
m_pMainWnd = &dlg;

EnableShellOpen();
RegisterShellFileTypes();

INT_PTR nResponse = dlg.DoModal();
if (nResponse == IDOK)
{
// TODO: Place code here to handle when the dialog is
// dismissed with OK
}
else if (nResponse == IDCANCEL)
{
// TODO: Place code here to handle when the dialog is
// dismissed with Cancel
}



so, can anyone tell me what is the problem exactly?

it working with SDI Application..

Regards,
Srinivas

modified on Thursday, December 3, 2009 6:24 AM