Implementing drag n drop in a CRichEditView?

[Mike Pliam]

I have an SDI app (VS 2005, C++) that serializes a unique type of binary file with a unique (I think) suffix, *.mtx. I would like to be able to drag an *.mtx file from Windows Explorer to the CRichEditView main window of the interface. I could easily implement such a process provided that I could intercept the file path of the dragged and dropped file. As it is, the drag n drop action only produces a graphic square with the filename in it.

There are several methods available to the CRichEditView which appear relevant to the problem. These are: OnDragEnter, OnDragLeave, OnDragOver, OnDrop. In addition, there is apparently an OnBeginDrag which does not appear in the ProprertyPage class view for CRichEditView, but has appeared on several postings on the subject.

As a first step, I would like to capture the pathname of the file that a user drags onto the CREView window. The following code doesnt ever get called during a drag n drop of an *.mtx file

BOOL CMyRichEditView::OnDrop(COleDataObject* pDataObject, DROPEFFECT dropEffect, CPoint point)
{
	// TODO: Add your specialized code here and/or call the base class
	CFile * pFile = pDataObject->GetFileData(CF_TEXT);
	CString csFileName = pFile->GetFileName();
	CString csFilePath = pFile->GetFilePath();
	MessageBox(csFileName);

	return CRichEditView::OnDrop(pDataObject, dropEffect, point);
}

Can anyone help me to capture the drop file name?