DDE-Server antwortet auf DDE Requests nur, wenn er in der IDE gestartet wird

[Marlin]

Hallo zusammen,

ich habe hier ein kleines Problem mit meinem DDE-Server. Dieser beantwortet anliegende DDE-Requests nur, wenn er in der IDE gestartet wird (Visual C++ 2008). Hat jmd. eine Idee woran das liegen könnte? Ich kopier mal den Code hier rein:

LRESULT CMain::OnDDERequest(WPARAM wParam, LPARAM lParam)
{
    ATOM atomApplication = NULL; 
    ATOM atomItem = NULL; 

    VERIFY( UnpackDDElParam(WM_DDE_REQUEST, lParam, (PUINT)&atomApplication, (PUINT)&atomItem) );
	VERIFY( FreeDDElParam(WM_DDE_REQUEST, lParam) );

	CString strApplication, strTopic;
	::GlobalGetAtomName(atomApplication, strApplication.GetBufferSetLength(100), 100);
	::GlobalGetAtomName(atomItem, strTopic.GetBufferSetLength(100), 100);
	strApplication.ReleaseBuffer();
	strTopic.ReleaseBuffer();

	m_strApplication = strApplication;
	m_strTopic = strTopic;

	if (m_strTopic == _T("Get Acquisition Status"))
	{
		CString strResult;
	    strResult = "Antwort";

		// Allocate the size of the DDE data header, plus the data: a 
		// string,<CR><LF><NULL>. The byte for the string's terminating 
		// null character is counted by DDEDATA.Value[1].

		HGLOBAL hData = ::GlobalAlloc(GMEM_MOVEABLE, strResult.GetLength()+2 + (LONG)sizeof(DDEDATA));

		if (!hData) 
		{
			return 0L;
		}

		DDEDATA FAR* lpData = (DDEDATA FAR*) ::GlobalLock(hData);
		if (!lpData)  
		{
			::GlobalFree(hData); 
			return 0L;
		} 

		lpData->cfFormat = CF_TEXT;
		//lpData->fAckReq = 0;
		//lpData->fRelease = 0;

		HRESULT hResult = ::StringCchCopy((LPSTR) lpData->Value, strResult.GetLength()+1, strResult); // copies value to be sent
		if (FAILED(hResult))
		{
			::GlobalFree(hData); 
			return 0L;
		}

		// Each line of CF_TEXT data is terminated by CR/LF. 
		hResult = ::StringCchCat((LPSTR) lpData->Value, strResult.GetLength()+3, (LPCSTR) _T("\r\n\0"));
		if (FAILED(hResult))
		{
			::GlobalFree(hData); 
			return 0L;
		} 
		::GlobalUnlock(hData); 

		ATOM atomSendItem = ::GlobalAddAtom(m_strTopic);

		if (atomSendItem != 0) 
		{ 
			lParam = PackDDElParam(WM_DDE_DATA, (UINT) hData, atomSendItem); 
			if (!::PostMessage(
					(HWND)wParam, 
					WM_DDE_DATA, 
					(WPARAM) m_hWnd, 
					lParam)) 
			{ 
				::GlobalFree(hData); 
				::GlobalDeleteAtom(atomSendItem); 
				::FreeDDElParam(WM_DDE_DATA, lParam); 
			} 
		} 
		else
		{ 
			::GlobalFree(hData); 
			::GlobalDeleteAtom(atomSendItem); 
		}
	}
	else
	{
		// sende negative ACK message
		::PostMessage((HWND)wParam, 
			WM_DDE_ACK, 
			(WPARAM) m_hWnd, 
			PackDDElParam(WM_DDE_ACK, 0, atomItem));
	}

	return 0L;
}

Vielen Dank und Gruß,
Marlin