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copyhook.cpp
Package: shell.rar [view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 4k
Category:
Windows Kernel
Development Platform:
Visual C++
- #include "precomp.hxx"
- #pragma hdrstop
- #include "util.h"
- #include "dll.h"
- #include "resource.h"
- class CMyDocsCopyHook : public ICopyHook
- {
- public:
- // IUnknown
- STDMETHOD(QueryInterface)(REFIID riid, void **ppvect);
- STDMETHOD_(ULONG, AddRef)();
- STDMETHOD_(ULONG, Release)();
- // ICopyHook
- STDMETHOD_(UINT,CopyCallback)(HWND hwnd, UINT wFunc, UINT wFlags,
- LPCTSTR pszSrcFile, DWORD dwSrcAttribs,
- LPCTSTR pszDestFile, DWORD dwDestAttribs);
- private:
- CMyDocsCopyHook();
- ~CMyDocsCopyHook();
- LONG _cRef;
- friend HRESULT CMyDocsCopyHook_CreateInstance(IUnknown *punkOuter, IUnknown **ppunk, LPCOBJECTINFO poi); // for ctor
- };
- STDMETHODIMP CMyDocsCopyHook::QueryInterface(REFIID riid, void **ppv)
- {
- static const QITAB qit[] = {
- QITABENT(CMyDocsCopyHook, ICopyHook), // IID_ICopyHook
- { 0 },
- };
- return QISearch(this, qit, riid, ppv);
- }
- STDMETHODIMP_ (ULONG) CMyDocsCopyHook::AddRef()
- {
- return InterlockedIncrement(&_cRef);
- }
- STDMETHODIMP_ (ULONG) CMyDocsCopyHook::Release()
- {
- if (InterlockedDecrement(&_cRef))
- return _cRef;
- delete this;
- return 0;
- }
- CMyDocsCopyHook::CMyDocsCopyHook() : _cRef(1)
- {
- DllAddRef();
- }
- CMyDocsCopyHook::~CMyDocsCopyHook()
- {
- DllRelease();
- }
- // ICopyHook methods
- UINT CMyDocsCopyHook::CopyCallback(HWND hwnd, UINT wFunc, UINT wFlags,
- LPCTSTR pszSrcFile, DWORD dwSrcAttribs,
- LPCTSTR pszDestFile, DWORD dwDestAttribs)
- {
- UINT uRes = IDYES;
- if ((wFunc == FO_COPY) || (wFunc == FO_MOVE))
- {
- TCHAR szPersonal[MAX_PATH];
- if (S_OK == SHGetFolderPath(NULL, CSIDL_PERSONAL | CSIDL_FLAG_DONT_VERIFY, NULL, SHGFP_TYPE_CURRENT, szPersonal) &&
- lstrcmpi(pszSrcFile, szPersonal) == 0)
- {
- // the source is the personal directory, now check if the
- // destination is on the desktop...
- DWORD dwRes = IsPathGoodMyDocsPath(hwnd, pszDestFile);
- if (dwRes == PATH_IS_NONEXISTENT)
- {
- lstrcpyn(szPersonal, pszDestFile, ARRAYSIZE(szPersonal));
- if (PathRemoveFileSpec(szPersonal))
- {
- dwRes = IsPathGoodMyDocsPath(hwnd, szPersonal);
- }
- }
- if (dwRes == PATH_IS_DESKTOP)
- {
- // keep the user from moving the personal folder to the desktop
- TCHAR szVerb[ 32 ];
- LPTSTR pName = PathFindFileName(pszSrcFile);
- LoadString(g_hInstance, (wFunc == FO_COPY) ? IDS_COPY : IDS_MOVE, szVerb, ARRAYSIZE(szVerb));
- uRes = IDNO;
- GetMyDocumentsDisplayName(szPersonal, ARRAYSIZE(szPersonal));
- if (IsMyDocsHidden())
- {
- if ( IDYES == ShellMessageBox(g_hInstance, hwnd,
- (LPTSTR)IDS_NODRAG_DESKTOP_HIDDEN, szPersonal,
- MB_YESNO | MB_ICONQUESTION,
- szPersonal, szVerb))
- {
- RestoreMyDocsFolder();
- }
- }
- else
- {
- ShellMessageBox(g_hInstance, hwnd,
- (LPTSTR)IDS_NODRAG_DESKTOP_NOT_HIDDEN, szPersonal,
- MB_OK | MB_ICONSTOP, szPersonal, szVerb);
- }
- }
- }
- }
- return uRes;
- }
- HRESULT CMyDocsCopyHook_CreateInstance(IUnknown *punkOuter, IUnknown **ppunk, LPCOBJECTINFO poi)
- {
- CMyDocsCopyHook * pMDCH = new CMyDocsCopyHook();
- if (pMDCH)
- {
- *ppunk = SAFECAST(pMDCH, ICopyHook*);
- return S_OK;
- }
- *ppunk = NULL;
- return E_OUTOFMEMORY;
- }