426 lines
10 KiB
C++
426 lines
10 KiB
C++
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//-------------------------------------------------------------
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// Copyright (C) Microsoft Corporation, 1996 - 1999
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//
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// File: droptrgt.cpp
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//
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// Contents: The cpp file to implement IDropTarget
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//
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// History: March-9th-98 xiaohs created
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//
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//--------------------------------------------------------------
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#include "wzrdpvk.h"
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#include "mgrcert.h"
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//============================================================================
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//
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// the definition of the CCertMgrDropTarget class which supports IDropTarget
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//============================================================================
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class CCertMgrDropTarget : public IDropTarget
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{
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private:
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LPDATAOBJECT m_pDataObj;
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ULONG m_cRefs;
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DWORD m_grfKeyStateLast;
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BOOL m_fHasHDROP;
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DWORD m_dwEffectLastReturned;
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HWND m_hwndDlg;
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CERT_MGR_INFO *m_pCertMgrInfo;
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public:
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CCertMgrDropTarget(HWND hwndDlg,
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CERT_MGR_INFO *pCertMgrInfo);
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~CCertMgrDropTarget();
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STDMETHODIMP QueryInterface (REFIID riid,LPVOID FAR *ppv);
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STDMETHODIMP_(ULONG) AddRef ();
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STDMETHODIMP_(ULONG) Release ();
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STDMETHODIMP 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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STDMETHODIMP DragOver (DWORD grfKeyState,
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POINTL pt,
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LPDWORD pdwEffect);
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STDMETHODIMP DragLeave ();
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STDMETHODIMP 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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DWORD GetDropEffect (LPDWORD pdwEffect);
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};
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//============================================================================
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//
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// Implementation of CCertMgrDropTarget_CreateInstance
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//============================================================================
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HRESULT CCertMgrDropTarget_CreateInstance(HWND hwndDlg,
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CERT_MGR_INFO *pCertMgrInfo,
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IDropTarget **ppIDropTarget)
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{
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CCertMgrDropTarget *pCCertMgrDropTarget=NULL;
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*ppIDropTarget=NULL;
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pCCertMgrDropTarget = (CCertMgrDropTarget *)new CCertMgrDropTarget(hwndDlg, pCertMgrInfo);
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if(pCCertMgrDropTarget)
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{
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*ppIDropTarget=(IDropTarget *)pCCertMgrDropTarget;
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return S_OK;
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}
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return E_OUTOFMEMORY;
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}
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//============================================================================
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//
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// Implementation of the CCertMgrDropTarget class
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//============================================================================
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//
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// Constructor
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//
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CCertMgrDropTarget::CCertMgrDropTarget(HWND hwndDlg,
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CERT_MGR_INFO *pCertMgrInfo)
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{
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m_cRefs = 1;
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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_dwEffectLastReturned = 0;
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m_hwndDlg = hwndDlg;
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m_pCertMgrInfo = pCertMgrInfo;
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}
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//
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// Destructor
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//
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CCertMgrDropTarget::~CCertMgrDropTarget()
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{
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}
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//
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// QueryInterface
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//
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STDMETHODIMP CCertMgrDropTarget::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) CCertMgrDropTarget::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) CCertMgrDropTarget::Release()
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{
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if (--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 CCertMgrDropTarget::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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HRESULT hr = E_INVALIDARG;
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// Release any old data object we might have
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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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LPENUMFORMATETC penum;
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hr = pDataObj->EnumFormatEtc(DATADIR_GET, &penum);
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if (SUCCEEDED(hr))
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{
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FORMATETC fmte;
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ULONG celt;
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while (S_OK == penum->Next(1, &fmte, &celt))
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{
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if (fmte.cfFormat==CF_HDROP && (fmte.tymed & TYMED_HGLOBAL))
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{
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m_fHasHDROP = TRUE;
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hr=S_OK;
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break;
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}
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}
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penum->Release();
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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 hr;
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}
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//
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// GetDropEffect
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//
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DWORD CCertMgrDropTarget::GetDropEffect(LPDWORD pdwEffect)
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{
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if (m_fHasHDROP)
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{
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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 CCertMgrDropTarget::DragOver(DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect)
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{
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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 CCertMgrDropTarget::DragLeave()
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{
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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 CCertMgrDropTarget::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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HRESULT hr = S_OK;
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FORMATETC fmte = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
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STGMEDIUM medium;
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DWORD dwFileCount=0;
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BOOL fOneFileSucceeded=FALSE;
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BOOL fOneFileFailed=FALSE;
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DWORD dwIndex=0;
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WCHAR wszPath[MAX_PATH];
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UINT idsErrMsg=0;
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CRYPTUI_WIZ_IMPORT_SRC_INFO ImportSrcInfo;
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DWORD dwExpectedContentType=CERT_QUERY_CONTENT_FLAG_CTL | CERT_QUERY_CONTENT_FLAG_CERT | CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED;
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DWORD dwContentType=0;
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DWORD dwException=0;
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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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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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__try {
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//get the file names
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if (SUCCEEDED(pDataObj->GetData(&fmte, &medium)))
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{
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dwFileCount=DragQueryFileU((HDROP)medium.hGlobal, (UINT)-1, NULL, 0);
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}
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else
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return E_INVALIDARG;
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//process the file one at a time
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for(dwIndex=0; dwIndex < dwFileCount; dwIndex++)
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{
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if(DragQueryFileU((HDROP)medium.hGlobal, dwIndex, wszPath, MAX_PATH))
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{
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//make sure the file is either a cert or a PKCS7 file
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if(!CryptQueryObject(
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CERT_QUERY_OBJECT_FILE,
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wszPath,
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dwExpectedContentType,
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CERT_QUERY_FORMAT_FLAG_ALL,
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0,
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NULL,
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&dwContentType,
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NULL,
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NULL,
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NULL,
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NULL))
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{
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fOneFileFailed=TRUE;
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}
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else
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{
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//since the CTL itself is a PKCS#7, we need to differentiate them
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if(CERT_QUERY_CONTENT_CTL == dwContentType)
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fOneFileFailed=TRUE;
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else
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{
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memset(&ImportSrcInfo, 0, sizeof(ImportSrcInfo));
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ImportSrcInfo.dwSize=sizeof(CRYPTUI_WIZ_IMPORT_SRC_INFO);
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ImportSrcInfo.dwSubjectChoice=CRYPTUI_WIZ_IMPORT_SUBJECT_FILE;
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ImportSrcInfo.pwszFileName=wszPath;
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//call the import wizard UIless mode
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CryptUIWizImport(CRYPTUI_WIZ_NO_UI,
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m_hwndDlg,
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NULL,
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&ImportSrcInfo,
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NULL);
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fOneFileSucceeded=TRUE;
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}
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}
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}
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}
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//display messages based on the result
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if(1 == dwFileCount)
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{
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if(fOneFileFailed)
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idsErrMsg=IDS_ALL_INVALID_DROP_FILE;
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}
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else
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{
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if( 1 < dwFileCount)
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{
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if(fOneFileFailed && fOneFileSucceeded)
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idsErrMsg=IDS_SOME_INVALID_DROP_FILE;
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else
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{
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if(fOneFileFailed && (FALSE==fOneFileSucceeded))
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idsErrMsg=IDS_ALL_INVALID_DROP_FILE;
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}
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}
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}
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if(idsErrMsg)
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I_MessageBox(m_hwndDlg,
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idsErrMsg,
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IDS_CERT_MGR_TITLE,
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m_pCertMgrInfo->pCertMgrStruct->pwszTitle,
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MB_ICONEXCLAMATION|MB_OK|MB_APPLMODAL);
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//release the medium
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ReleaseStgMedium(&medium);
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//refresh the listView window
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if(idsErrMsg == 0)
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RefreshCertListView(m_hwndDlg, m_pCertMgrInfo);
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} __except(EXCEPTION_EXECUTE_HANDLER) {
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dwException = GetExceptionCode();
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}
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DragLeave();
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return dwException ? dwException : S_OK;
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}
|
||
|
|
|