File/folder drag/drop on List control

[Steve]

Hi,
I am using a List control in an MFC application. How do I enable drag &
drop of only files & folder on the List control (set to Report mode)?

Regards,
Steve

[Tom Serface]

Here is some code that might help you get started, but basically, you have
an OnDropFiles() function, call DragAcceptFiles() and catch the WM_DROPFILES
message:

http://www.codeguru.com/cpp/controls/listview/dragdrop/article.php/c941/

// In message map
ON_WM_DROPFILES()

// In OnInitDialog()
DragAcceptFiles();

// Handler function
void CAddDataView::OnDropFiles(HDROP hDropInfo)
{
CDialog::OnDropFiles(hDropInfo);
SetForegroundWindow();

for(UINT nThisFile = 0; nThisFile < nFiles; ++nThisFile, ++nIndex) {
TCHAR szFile[_MAX_PATH];
::DragQueryFile(hDropInfo, nThisFile, szFile, _countof(szFile));
DWORD nAttrs;
if((nAttrs = ::GetFileAttributes(szFile)) !=
INVALID_FILE_ATTRIBUTES) {
// Do something with file...
}
}
ResetContent();
::DragFinish(hDropInfo);
}

Tom

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