553 lines
14 KiB
C++
553 lines
14 KiB
C++
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#include "private.h"
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#include "offl_cpp.h"
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#include "subsmgrp.h"
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HRESULT _GetURLData(IDataObject *, int, TCHAR *, TCHAR *);
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HRESULT _ConvertHDROPData(IDataObject *, BOOL);
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HRESULT ScheduleDefault(LPCTSTR, LPCTSTR);
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#define CITBDTYPE_HDROP 1
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#define CITBDTYPE_URL 2
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#define CITBDTYPE_TEXT 3
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//
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// Constructor
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//
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COfflineDropTarget::COfflineDropTarget(HWND hwndParent)
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{
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m_cRefs = 1;
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m_hwndParent = hwndParent;
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m_pDataObj = NULL;
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m_grfKeyStateLast = 0;
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m_fHasHDROP = FALSE;
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m_fHasSHELLURL = FALSE;
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m_fHasTEXT = FALSE;
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m_dwEffectLastReturned = 0;
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DllAddRef();
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}
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//
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// Destructor
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//
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COfflineDropTarget::~COfflineDropTarget()
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{
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DllRelease();
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}
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//
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// QueryInterface
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//
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STDMETHODIMP COfflineDropTarget::QueryInterface(REFIID riid, LPVOID *ppv)
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{
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HRESULT hr = E_NOINTERFACE;
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*ppv = NULL;
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// Any interface on this object is the object pointer
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if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IDropTarget))
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{
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*ppv = (LPDROPTARGET)this;
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AddRef();
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hr = NOERROR;
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}
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return hr;
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}
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//
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// AddRef
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//
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STDMETHODIMP_(ULONG) COfflineDropTarget::AddRef()
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{
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return ++m_cRefs;
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}
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//
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// Release
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//
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STDMETHODIMP_(ULONG) COfflineDropTarget::Release()
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{
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if (0L != --m_cRefs)
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{
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return m_cRefs;
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}
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delete this;
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return 0L;
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}
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//
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// DragEnter
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//
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STDMETHODIMP COfflineDropTarget::DragEnter(LPDATAOBJECT pDataObj,
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DWORD grfKeyState,
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POINTL pt,
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LPDWORD pdwEffect)
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{
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// Release any old data object we might have
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// TraceMsg(TF_SUBSFOLDER, TEXT("odt - DragEnter"));
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if (m_pDataObj)
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{
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m_pDataObj->Release();
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}
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m_grfKeyStateLast = grfKeyState;
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m_pDataObj = pDataObj;
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//
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// See if we will be able to get CF_HDROP from this guy
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//
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if (pDataObj)
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{
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pDataObj->AddRef();
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TCHAR url[INTERNET_MAX_URL_LENGTH], name[MAX_NAME_QUICKLINK];
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FORMATETC fe = {(CLIPFORMAT) RegisterClipboardFormat(CFSTR_SHELLURL),
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NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
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m_fHasSHELLURL = m_fHasHDROP = m_fHasTEXT = FALSE;
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if (NOERROR == pDataObj->QueryGetData(&fe))
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{
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TraceMsg(TF_SUBSFOLDER, "odt - DragEnter : SHELLURL!");
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m_fHasSHELLURL =
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(NOERROR == _GetURLData(pDataObj,CITBDTYPE_URL,url,name));
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}
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if (fe.cfFormat = CF_HDROP, NOERROR == pDataObj->QueryGetData(&fe))
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{
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TraceMsg(TF_SUBSFOLDER, "odt - DragEnter : HDROP!");
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m_fHasHDROP = (NOERROR ==
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_ConvertHDROPData(pDataObj, FALSE));
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}
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if (fe.cfFormat = CF_TEXT, NOERROR == pDataObj->QueryGetData(&fe))
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{
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TraceMsg(TF_SUBSFOLDER, "odt - DragEnter : TEXT!");
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m_fHasTEXT =
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(NOERROR == _GetURLData(pDataObj,CITBDTYPE_TEXT,url,name));
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}
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}
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// Save the drop effect
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if (pdwEffect)
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{
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*pdwEffect = m_dwEffectLastReturned = GetDropEffect(pdwEffect);
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}
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return S_OK;
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}
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//
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// GetDropEffect
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//
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DWORD COfflineDropTarget::GetDropEffect(LPDWORD pdwEffect)
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{
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ASSERT(pdwEffect);
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if (m_fHasSHELLURL || m_fHasTEXT)
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{
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return *pdwEffect & (DROPEFFECT_COPY | DROPEFFECT_LINK);
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}
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else if (m_fHasHDROP) {
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return *pdwEffect & (DROPEFFECT_COPY );
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}
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else
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{
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return DROPEFFECT_NONE;
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}
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}
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//
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// DragOver
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//
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STDMETHODIMP COfflineDropTarget::DragOver(DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect)
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{
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// TraceMsg(TF_SUBSFOLDER, TEXT("odt - DragOver"));
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if (m_grfKeyStateLast == grfKeyState)
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{
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// Return the effect we saved at dragenter time
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if (*pdwEffect)
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{
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*pdwEffect = m_dwEffectLastReturned;
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}
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}
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else
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{
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if (*pdwEffect)
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{
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*pdwEffect = m_dwEffectLastReturned = GetDropEffect(pdwEffect);
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}
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}
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m_grfKeyStateLast = grfKeyState;
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return S_OK;
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}
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//
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// DragLeave
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//
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STDMETHODIMP COfflineDropTarget::DragLeave()
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{
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// TraceMsg(TF_SUBSFOLDER, TEXT("odt - DragLeave"));
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if (m_pDataObj)
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{
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m_pDataObj->Release();
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m_pDataObj = NULL;
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}
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return S_OK;
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}
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//
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// Drop
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//
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STDMETHODIMP COfflineDropTarget::Drop(LPDATAOBJECT pDataObj,
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DWORD grfKeyState,
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POINTL pt,
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LPDWORD pdwEffect)
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{
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// UINT idCmd; // Choice from drop popup menu
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HRESULT hr = S_OK;
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//
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// Take the new data object, since OLE can give us a different one than
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// it did in DragEnter
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//
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// TraceMsg(TF_SUBSFOLDER, TEXT("odt - Drop"));
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if (m_pDataObj)
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{
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m_pDataObj->Release();
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}
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m_pDataObj = pDataObj;
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if (pDataObj)
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{
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pDataObj->AddRef();
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}
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// If the dataobject doesn't have an HDROP, its not much good to us
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*pdwEffect &= DROPEFFECT_COPY|DROPEFFECT_LINK;
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if (!(*pdwEffect)) {
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DragLeave();
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return S_OK;
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}
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hr = E_NOINTERFACE;
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if (m_fHasHDROP)
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hr = _ConvertHDROPData(pDataObj, TRUE);
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else {
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TCHAR url[INTERNET_MAX_URL_LENGTH], name[MAX_NAME_QUICKLINK];
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if (m_fHasSHELLURL)
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hr = _GetURLData(pDataObj, CITBDTYPE_URL, url, name);
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if (FAILED(hr) && m_fHasTEXT)
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hr = _GetURLData(pDataObj, CITBDTYPE_TEXT, url, name);
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if (SUCCEEDED(hr)) {
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TraceMsg(TF_SUBSFOLDER, "URL: %s, Name: %s", url, name);
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hr = ScheduleDefault(url, name);
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}
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}
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if (FAILED(hr))
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{
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TraceMsg(TF_SUBSFOLDER, "Couldn't DROP");
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}
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DragLeave();
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return hr;
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}
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HRESULT _CLSIDFromExtension(
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LPCTSTR pszExt,
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CLSID *pclsid)
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{
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TCHAR szProgID[80];
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long cb = SIZEOF(szProgID);
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if (RegQueryValue(HKEY_CLASSES_ROOT, pszExt, szProgID, &cb) == ERROR_SUCCESS)
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{
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TCHAR szCLSID[80];
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StrCatN(szProgID, TEXT("\\CLSID"), ARRAYSIZE(szProgID));
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cb = SIZEOF(szCLSID);
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if (RegQueryValue(HKEY_CLASSES_ROOT, szProgID, szCLSID, &cb) == ERROR_SUCCESS)
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{
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// FEATURE (scotth): call shell32's SHCLSIDFromString once it
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// exports A/W versions. This would clean this
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// up.
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#ifdef UNICODE
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return CLSIDFromString(szCLSID, pclsid);
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#else
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WCHAR wszCLSID[80];
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MultiByteToWideChar(CP_ACP, 0, szCLSID, -1, wszCLSID, ARRAYSIZE(wszCLSID));
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return CLSIDFromString(wszCLSID, pclsid);
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#endif
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}
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}
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return E_FAIL;
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}
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// get the target of a shortcut. this uses IShellLink which
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// Internet Shortcuts (.URL) and Shell Shortcuts (.LNK) support so
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// it should work generally
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//
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HRESULT _GetURLTarget(LPCTSTR pszPath, LPTSTR pszTarget, UINT cch)
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{
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IShellLink *psl;
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HRESULT hr = E_FAIL;
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CLSID clsid;
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if (FAILED(_CLSIDFromExtension(PathFindExtension(pszPath), &clsid)))
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clsid = CLSID_ShellLink; // assume it's a shell link
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hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID *)&psl);
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if (SUCCEEDED(hr))
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{
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IPersistFile *ppf;
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hr = psl->QueryInterface(IID_IPersistFile, (void **)&ppf);
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if (SUCCEEDED(hr))
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{
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#ifdef UNICODE
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hr = ppf->Load(pszPath, 0);
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#else
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WCHAR wszPath[MAX_PATH];
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MultiByteToWideChar(CP_ACP, 0, pszPath, -1, wszPath, ARRAYSIZE(wszPath));
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hr = ppf->Load (wszPath, 0);
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#endif
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ppf->Release();
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}
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if (SUCCEEDED(hr)) {
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IUniformResourceLocator * purl;
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hr = psl->QueryInterface(IID_IUniformResourceLocator,(void**)&purl);
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if (SUCCEEDED(hr))
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purl->Release();
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}
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if (SUCCEEDED(hr))
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hr = psl->GetPath(pszTarget, cch, NULL, SLGP_UNCPRIORITY);
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psl->Release();
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}
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return hr;
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}
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HRESULT _ConvertHDROPData(IDataObject *pdtobj, BOOL bSubscribe)
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{
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HRESULT hRes = NOERROR;
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STGMEDIUM stgmedium;
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FORMATETC formatetc;
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TCHAR url[INTERNET_MAX_URL_LENGTH];
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TCHAR name[MAX_NAME_QUICKLINK];
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name[0] = 0;
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url[0] = 0;
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formatetc.cfFormat = CF_HDROP;
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formatetc.ptd = NULL;
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formatetc.dwAspect = DVASPECT_CONTENT;
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formatetc.lindex = -1;
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formatetc.tymed = TYMED_HGLOBAL;
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// Get the parse string
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hRes = pdtobj->GetData(&formatetc, &stgmedium);
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if (SUCCEEDED(hRes))
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{
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LPTSTR pszURLData = (LPTSTR)GlobalLock(stgmedium.hGlobal);
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if (pszURLData) {
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TCHAR szPath[MAX_PATH];
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SHFILEINFO sfi;
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int cFiles, i;
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HDROP hDrop = (HDROP)stgmedium.hGlobal;
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hRes = S_FALSE;
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cFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
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for (i = 0; i < cFiles; i ++) {
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DragQueryFile(hDrop, i, szPath, ARRAYSIZE(szPath));
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// defaults...
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StrCpyN(name, szPath, MAX_NAME_QUICKLINK);
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if (SHGetFileInfo(szPath, 0, &sfi, sizeof(sfi), SHGFI_DISPLAYNAME))
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StrCpyN(name, sfi.szDisplayName, MAX_NAME_QUICKLINK);
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if (SHGetFileInfo(szPath, 0, &sfi, sizeof(sfi),SHGFI_ATTRIBUTES)
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&& (sfi.dwAttributes & SFGAO_LINK))
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{
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if (SUCCEEDED(_GetURLTarget(szPath, url, INTERNET_MAX_URL_LENGTH)))
|
||
|
|
{
|
||
|
|
TraceMsg(TF_SUBSFOLDER, "URL: %s, Name: %s", url, name);
|
||
|
|
// If we just want to see whether there is some urls
|
||
|
|
// here, we can break now.
|
||
|
|
if (!bSubscribe)
|
||
|
|
{
|
||
|
|
if ((IsHTTPPrefixed(url)) &&
|
||
|
|
(!SHRestricted2(REST_NoAddingSubscriptions, url, 0)))
|
||
|
|
{
|
||
|
|
hRes = S_OK;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
hRes = ScheduleDefault(url, name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
GlobalUnlock(stgmedium.hGlobal);
|
||
|
|
if (bSubscribe)
|
||
|
|
hRes = S_OK;
|
||
|
|
} else
|
||
|
|
hRes = S_FALSE;
|
||
|
|
|
||
|
|
ReleaseStgMedium(&stgmedium);
|
||
|
|
}
|
||
|
|
return hRes;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Takes a variety of inputs and returns a string for drop targets.
|
||
|
|
// szUrl: the URL
|
||
|
|
// szName: the name (for quicklinks and the confo dialog boxes)
|
||
|
|
// returns: NOERROR if succeeded
|
||
|
|
//
|
||
|
|
HRESULT _GetURLData(IDataObject *pdtobj, int iDropType, TCHAR *pszUrl, TCHAR *pszName)
|
||
|
|
{
|
||
|
|
HRESULT hRes = NOERROR;
|
||
|
|
STGMEDIUM stgmedium;
|
||
|
|
FORMATETC formatetc;
|
||
|
|
|
||
|
|
*pszName = 0;
|
||
|
|
*pszUrl = 0;
|
||
|
|
|
||
|
|
switch (iDropType)
|
||
|
|
{
|
||
|
|
case CITBDTYPE_URL:
|
||
|
|
formatetc.cfFormat = (CLIPFORMAT) RegisterClipboardFormat(CFSTR_SHELLURL);
|
||
|
|
break;
|
||
|
|
case CITBDTYPE_TEXT:
|
||
|
|
formatetc.cfFormat = CF_TEXT;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return E_UNEXPECTED;
|
||
|
|
}
|
||
|
|
formatetc.ptd = NULL;
|
||
|
|
formatetc.dwAspect = DVASPECT_CONTENT;
|
||
|
|
formatetc.lindex = -1;
|
||
|
|
formatetc.tymed = TYMED_HGLOBAL;
|
||
|
|
|
||
|
|
// Get the parse string
|
||
|
|
hRes = pdtobj->GetData(&formatetc, &stgmedium);
|
||
|
|
if (SUCCEEDED(hRes))
|
||
|
|
{
|
||
|
|
LPTSTR pszURLData = (LPTSTR)GlobalLock(stgmedium.hGlobal);
|
||
|
|
if (pszURLData)
|
||
|
|
{
|
||
|
|
if (iDropType == CITBDTYPE_URL)
|
||
|
|
{
|
||
|
|
STGMEDIUM stgmediumFGD;
|
||
|
|
|
||
|
|
// defaults
|
||
|
|
StrCpyN(pszUrl, pszURLData, INTERNET_MAX_URL_LENGTH);
|
||
|
|
StrCpyN(pszName, pszURLData, MAX_NAME_QUICKLINK);
|
||
|
|
|
||
|
|
formatetc.cfFormat = (CLIPFORMAT) RegisterClipboardFormat(CFSTR_FILEDESCRIPTOR);
|
||
|
|
if (SUCCEEDED(pdtobj->GetData(&formatetc, &stgmediumFGD)))
|
||
|
|
{
|
||
|
|
FILEGROUPDESCRIPTOR *pfgd = (FILEGROUPDESCRIPTOR *)GlobalLock(stgmediumFGD.hGlobal);
|
||
|
|
if (pfgd)
|
||
|
|
{
|
||
|
|
TCHAR szPath[MAX_PATH];
|
||
|
|
StrCpyN(szPath, pfgd->fgd[0].cFileName, ARRAYSIZE(szPath));
|
||
|
|
PathRemoveExtension(szPath);
|
||
|
|
StrCpyN(pszName, szPath, MAX_NAME_QUICKLINK);
|
||
|
|
GlobalUnlock(stgmediumFGD.hGlobal);
|
||
|
|
}
|
||
|
|
ReleaseStgMedium(&stgmediumFGD);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (iDropType == CITBDTYPE_TEXT)
|
||
|
|
{
|
||
|
|
if (PathIsURL(pszURLData)) {
|
||
|
|
StrCpyN(pszUrl, pszURLData, INTERNET_MAX_URL_LENGTH);
|
||
|
|
StrCpyN(pszName, pszURLData, MAX_NAME_QUICKLINK);
|
||
|
|
} else
|
||
|
|
hRes = E_FAIL;
|
||
|
|
}
|
||
|
|
GlobalUnlock(stgmedium.hGlobal);
|
||
|
|
}
|
||
|
|
ReleaseStgMedium(&stgmedium);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (SUCCEEDED(hRes))
|
||
|
|
{
|
||
|
|
if (!IsHTTPPrefixed(pszUrl) || SHRestricted2(REST_NoAddingSubscriptions, pszUrl, 0))
|
||
|
|
{
|
||
|
|
hRes = E_FAIL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return hRes;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT ScheduleDefault(LPCTSTR url, LPCTSTR name)
|
||
|
|
{
|
||
|
|
if (!IsHTTPPrefixed(url))
|
||
|
|
return E_INVALIDARG;
|
||
|
|
|
||
|
|
ISubscriptionMgr * pSub= NULL;
|
||
|
|
HRESULT hr = CoInitialize(NULL);
|
||
|
|
RETURN_ON_FAILURE(hr);
|
||
|
|
|
||
|
|
hr = CoCreateInstance(CLSID_SubscriptionMgr, NULL, CLSCTX_INPROC_SERVER,
|
||
|
|
IID_ISubscriptionMgr, (void **)&pSub);
|
||
|
|
CoUninitialize();
|
||
|
|
RETURN_ON_FAILURE(hr);
|
||
|
|
ASSERT(pSub);
|
||
|
|
|
||
|
|
BSTR bstrURL = NULL, bstrName = NULL;
|
||
|
|
hr = CreateBSTRFromTSTR(&bstrURL, url);
|
||
|
|
if (S_OK == hr)
|
||
|
|
hr = CreateBSTRFromTSTR(&bstrName, name);
|
||
|
|
|
||
|
|
// We need a perfectly valid structure.
|
||
|
|
SUBSCRIPTIONINFO subInfo;
|
||
|
|
ZeroMemory((void *)&subInfo, sizeof (SUBSCRIPTIONINFO));
|
||
|
|
subInfo.cbSize = sizeof(SUBSCRIPTIONINFO);
|
||
|
|
|
||
|
|
if (S_OK == hr)
|
||
|
|
hr = pSub->CreateSubscription(NULL, bstrURL, bstrName,
|
||
|
|
CREATESUBS_NOUI, SUBSTYPE_URL, &subInfo);
|
||
|
|
|
||
|
|
SAFERELEASE(pSub);
|
||
|
|
SAFEFREEBSTR(bstrURL);
|
||
|
|
SAFEFREEBSTR(bstrName);
|
||
|
|
|
||
|
|
if (FAILED(hr)) {
|
||
|
|
TraceMsg(TF_ALWAYS, "Failed to add default object.");
|
||
|
|
TraceMsg(TF_ALWAYS, " hr = 0x%x\n", hr);
|
||
|
|
return (FAILED(hr))?hr:E_FAIL;
|
||
|
|
} else if (hr == S_FALSE) {
|
||
|
|
TraceMsg(TF_SUBSFOLDER, "%s(%s) is already there.", url, name);
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|