FARINTERNAL UtGetIconData(LPDATAOBJECT lpSrcDataObj, REFCLSID rclsid,
LPFORMATETC lpforetc, LPSTGMEDIUM lpstgmed)
{
VDATEHEAP();
CLSID clsid = rclsid;
lpstgmed->tymed = TYMED_NULL;
lpstgmed->pUnkForRelease = NULL;
lpstgmed->hGlobal = NULL;
if (lpSrcDataObj)
{
if (lpSrcDataObj->GetData(lpforetc, lpstgmed) == NOERROR)
return NOERROR;
if (IsEqualCLSID(clsid, CLSID_NULL))
UtGetClassID(lpSrcDataObj, &clsid);
}
// get data from registration database
lpstgmed->hGlobal = OleGetIconOfClass(clsid, NULL, TRUE);
if (lpstgmed->hGlobal == NULL)
return ResultFromScode(E_OUTOFMEMORY);
else
lpstgmed->tymed = TYMED_MFPICT;
return NOERROR;
}
HRESULT FTPWindow::OnDrop(LPDATAOBJECT pDataObj, DWORD /*grfKeyState*/, POINTL /*pt*/, LPDWORD pdwEffect) {
TreeView_Select(m_treeview.GetHWND(), NULL, TVGN_DROPHILITE);
STGMEDIUM medium;
FORMATETC formatetc;
formatetc.cfFormat = CF_HDROP;
formatetc.tymed = TYMED_HGLOBAL;
formatetc.dwAspect = 0;
formatetc.lindex = -1;
formatetc.ptd = NULL;;
HRESULT dataRes = pDataObj->GetData(&formatetc, &medium);
if (dataRes == S_OK) {
*pdwEffect = DROPEFFECT_COPY;
HDROP hdrop = (HDROP)GlobalLock(medium.hGlobal);
TCHAR pathToFile[MAX_PATH];
int filesDropped = DragQueryFile(hdrop, 0xffffffff, NULL, 0);
for (int i = 0; i < filesDropped; ++i) {
if (DragQueryFile(hdrop, i, pathToFile, MAX_PATH) != 0) {
//pathToFile is not checked. If it doesnt exist or its a directory or link, CreateFile either allows a handle to be opened or not
m_ftpSession->UploadFile(pathToFile, m_currentDropObject->GetPath(), true, 1); //1: User specified location
}
}
GlobalUnlock(medium.hGlobal);
GlobalFree(medium.hGlobal);
}
return S_OK;
}
STDMETHODIMP CToolBarCombo::DragEnter(LPDATAOBJECT pDataObj , DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect){
m_pIDataObject=NULL;
ATL::CString sText;
FORMATETC formatDetails;
STGMEDIUM stmg;
// Let's get the text from the "clipboard"
formatDetails.cfFormat = CF_TEXT;
formatDetails.dwAspect = DVASPECT_CONTENT;
formatDetails.lindex = -1;
formatDetails.ptd = NULL;
formatDetails.tymed = TYMED_HGLOBAL;
if (SUCCEEDED(pDataObj->GetData(&formatDetails, &stmg)))
{
sText = (LPSTR)GlobalLock(stmg.hGlobal);
GlobalUnlock(stmg.hGlobal);
if (stmg.hGlobal != NULL)
ReleaseStgMedium(&stmg);
}
*pdwEffect=DROPEFFECT_COPY;
m_pIDataObject=pDataObj;
m_pIDataObject->AddRef();
return NOERROR;
}
STDMETHODIMP CToolBarCombo::Drop(LPDATAOBJECT pDataObj, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect){
*pdwEffect=DROPEFFECT_NONE;
if (m_pIDataObject == NULL)
return E_FAIL;
DragLeave();
FORMATETC formatDetails;
STGMEDIUM stmg;
// Let's get the text from the "clipboard"
formatDetails.cfFormat = CF_TEXT;
formatDetails.dwAspect = DVASPECT_CONTENT;
formatDetails.lindex = -1;
formatDetails.ptd = NULL;
formatDetails.tymed = TYMED_HGLOBAL;
if (SUCCEEDED(pDataObj->GetData(&formatDetails, &stmg)))
{
char* sClipboard = (char*)GlobalLock(stmg.hGlobal);
::SetWindowTextA(m_hWnd,sClipboard);
AddtoHistory(sClipboard);
GlobalUnlock(stmg.hGlobal);
if (stmg.hGlobal != NULL)
ReleaseStgMedium(&stmg);
}
*pdwEffect=DROPEFFECT_COPY;
//search immediately after dragging
::PostMessage(GetParent(),kWM_TBCOMBOSEARCH_WEB, 0, 0);
return NOERROR;
}
STDMETHOD (DragEnter) (LPDATAOBJECT pDataObject, DWORD grfKeyState, POINTL pt, LPDWORD pdwEffect)
{
AddRef();
m_filename[0] = 0;
if (pDataObject)
{
FORMATETC fmte;
fmte.cfFormat = CF_HDROP;
fmte.ptd = NULL;
fmte.dwAspect = DVASPECT_CONTENT;
fmte.lindex = -1;
fmte.tymed = TYMED_HGLOBAL;
STGMEDIUM medium;
if (SUCCEEDED(pDataObject->GetData(&fmte, &medium)))
{
HDROP hDrop = (HDROP)medium.hGlobal;
m_filename[0] = 0;
DragQueryFile(hDrop, 0, m_filename, sizeof(m_filename));
DragFinish(hDrop);
m_flags = is_stylefile(m_filename) ? 2 : 0;
}
}
*pdwEffect = DROPEFFECT_NONE;
return S_OK;
}
HRESULT CShellMenu::Initialize(LPCITEMIDLIST pidlFolder, LPDATAOBJECT lpdobj, HKEY hkeyProgID)
{
if(NULL == lpdobj)
{
return E_INVALIDARG;
}
FORMATETC feFmtEtc = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM mdmSTG = { TYMED_HGLOBAL };
if(FAILED(lpdobj->GetData(&feFmtEtc, &mdmSTG)))
{
return E_INVALIDARG;
}
HDROP hDrop = (HDROP)GlobalLock(mdmSTG.hGlobal);
if(NULL == hDrop)
{
return E_INVALIDARG;
}
int nDropCount = ::DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
if(nDropCount > 1)
m_bMultiFile = true;
else
m_bMultiFile = false;
if(nDropCount == 1)
{
::DragQueryFile(hDrop, 0, m_FileName, MAX_PATH);
}
return S_OK;
}
int readFromDataObject(LPDATAOBJECT lpDataObject, UINT fid, std::ostream& os, int* size, HWND hwnd)
{
FORMATETC format;
format.cfFormat = static_cast<CLIPFORMAT> (fid);
format.dwAspect = DVASPECT_CONTENT;
format.ptd = 0;
format.tymed = TYMED_HGLOBAL;
format.lindex = -1;
STGMEDIUM medium;
ZeroMemory (&medium, sizeof (medium));
// Get the bitmap handle from the dropped IDataObject,
// and then write it in the stream
if (SUCCEEDED(lpDataObject->GetData(&format, &medium)))
{
if(medium.hGlobal != NULL)
{
os.write ((char *)&medium.hGlobal, sizeof(HANDLE));
os << std::ends;
*size = sizeof(HANDLE) + 1;
}
}
return (medium.hGlobal != NULL);
}
STDMETHODIMP CEsteidShlExt::Initialize (
LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID )
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
TCHAR szFile[MAX_PATH];
HRESULT hr = S_OK;
m_Files.clear();
// Look for CF_HDROP data in the data object.
if (FAILED(pDataObj->GetData(&fmt, &stg))) {
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// Get a pointer to the actual data.
hDrop = (HDROP) GlobalLock(stg.hGlobal);
// Make sure it worked.
if (hDrop == NULL) {
ReleaseStgMedium(&stg);
return E_INVALIDARG;
}
// Sanity check - make sure there is at least one filename.
UINT nFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
if (nFiles == 0) {
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return E_INVALIDARG;
}
for (UINT i = 0; i < nFiles; i++) {
// Get path length in chars
UINT len = DragQueryFile(hDrop, i, NULL, 0);
if (len == 0 || len >= MAX_PATH)
continue;
// Get the name of the file
if (DragQueryFile(hDrop, i, szFile, len+1) == 0)
continue;
tstring str = tstring(szFile);
if (str.empty())
continue;
m_Files.push_back(str);
}
if (m_Files.empty()) {
// Don't show menu if no items were found
hr = E_INVALIDARG;
}
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return hr;
}
STDMETHODIMP CShellExt::Initialize(LPCITEMIDLIST pIDFolder,
LPDATAOBJECT pDataObj,
HKEY hRegKey)
{
HRESULT hres = E_FAIL;
STGMEDIUM medium;
FORMATETC fmte = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
// Initialize can be called more than once
if (m_pDataObj)
m_pDataObj->Release();
// duplicate the object pointer and registry handle
if (pDataObj)
{
m_pDataObj = pDataObj;
pDataObj->AddRef();
}
// use the given IDataObject to get a list of filenames (CF_HDROP)
hres = pDataObj->GetData(&fmte, &medium);
if(FAILED(hres))
return E_FAIL;
// find out how many files the user selected
if(DragQueryFile((HDROP)medium.hGlobal, (UINT)-1, NULL, 0) == 1)
DragQueryFile((HDROP)medium.hGlobal, 0, m_szFile, sizeof(m_szFile));
::ReleaseStgMedium(&medium);
return NOERROR;
}
STDMETHODIMP CShooterContextMenuExt::Initialize (
LPCITEMIDLIST pidlFolder,
LPDATAOBJECT pDataObj,
HKEY hProgID )
{
TCHAR szFile[MAX_PATH];
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
// Look for CF_HDROP data in the data object.
if ( FAILED( pDataObj->GetData ( &fmt, &stg ) ))
{
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// Get a pointer to the actual data.
hDrop = (HDROP) GlobalLock ( stg.hGlobal );
// Make sure it worked.
if ( NULL == hDrop )
{
ReleaseStgMedium ( &stg );
return E_INVALIDARG;
}
// Sanity check - make sure there is at least one filename.
UINT uNumFiles = DragQueryFile ( hDrop, 0xFFFFFFFF, NULL, 0 );
HRESULT hr = S_OK;
if ( 0 == uNumFiles )
{
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return E_INVALIDARG;
}
// Get the name of the first file and store it in our member variable m_szFile.
m_bHasDir = false;
for(UINT uFile = 0 ; uFile < uNumFiles ; uFile++)
{
if(0 == DragQueryFile(hDrop, uFile, szFile, MAX_PATH))
continue;
ATLTRACE("Checking file <%s>\n", szFile);
m_fileList.push_back(szFile);
if(IsDir(szFile))
m_bHasDir = true;
}
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return hr;
}
HRESULT STDMETHODCALLTYPE CHdrPropSheet::Initialize(LPCITEMIDLIST pidlFolder, LPDATAOBJECT lpDatObj, HKEY hkeyProgID)
{
//OutputDebugString(_T("CHdrPropSheet::Initialize()\n"));
if (lpDatObj == NULL) {
return E_FAIL;
}
FORMATETC fmtetc;
STGMEDIUM medium;
fmtetc.cfFormat = CF_HDROP;
fmtetc.ptd = NULL;
fmtetc.dwAspect = DVASPECT_CONTENT;
fmtetc.lindex = -1;
fmtetc.tymed = TYMED_HGLOBAL;
if (FAILED(lpDatObj->GetData(&fmtetc, &medium))) {
return E_FAIL;
}
HDROP hDrop = static_cast<HDROP>(medium.hGlobal);
if (::DragQueryFile(hDrop, -1, NULL, 0) != 1) { // not multi files.
::ReleaseStgMedium(&medium);
return E_FAIL;
}
::DragQueryFile(hDrop, 0, m_szPath, lengthof(m_szPath));
::ReleaseStgMedium(&medium);
return CheckFileType();
}
HRESULT CSimpleShlExt::Initialize (LPCITEMIDLIST pidlFolder,
LPDATAOBJECT pDataObj,
HKEY hProgID )
{
LPTSTR lpszBuffer;
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
UINT uNumFiles,
i;
// Look for CF_HDROP data in the data object.
if (FAILED( pDataObj->GetData(&fmt, &stg) ))
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
// Get a pointer to the actual data.
hDrop = (HDROP) GlobalLock ( stg.hGlobal );
// Make sure it worked.
if (hDrop == NULL)
return E_INVALIDARG;
// Get the number of files selected
// and make sure there is at least one file
if ((uNumFiles = DragQueryFile( hDrop, 0xFFFFFFFF, NULL, 0 )) == 0)
{
GlobalUnlock( stg.hGlobal );
ReleaseStgMedium( &stg );
return E_INVALIDARG;
}
// Create buffer
if (m_szFiles != NULL)
delete [] m_szFiles;
m_nFilesLength = 1;
for (i=0; i<uNumFiles; ++i)
m_nFilesLength += DragQueryFile(hDrop, i, NULL, 0) + 1;
lpszBuffer = m_szFiles = new TCHAR[m_nFilesLength];
if (m_szFiles == NULL)
{
GlobalUnlock( stg.hGlobal );
ReleaseStgMedium( &stg );
return E_INVALIDARG;
}
// Append all files into the buffer seperated by '\0'.
for (i=0; i<uNumFiles; ++i)
{
lpszBuffer += DragQueryFile(hDrop, i, lpszBuffer, MAX_PATH);
*lpszBuffer++ = _T('\0');
}
*lpszBuffer = _T('\0'); // End by a double '\0'.
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return S_OK;
}
STDMETHODIMP CShellExt::Initialize(LPCITEMIDLIST pIDFolder,
LPDATAOBJECT pDataObj,
HKEY hRegKey)
{
if (pDataObj == 0)
{
return E_INVALIDARG;
}
HRESULT hr = E_FAIL;
FORMATETC format={CF_HDROP,NULL,DVASPECT_CONTENT,-1,TYMED_HGLOBAL};
STGMEDIUM medium;
int i;
TCHAR szDirectory[MAX_PATH];
TCHAR szAppData[MAX_PATH];
/*hr = */SHGetSpecialFolderPath(NULL, szAppData,CSIDL_COMMON_DESKTOPDIRECTORY ,FALSE);
// Initialize can be called more than once
if (m_pDataObj)
m_pDataObj->Release();
// duplicate the object pointer and registry handle
if (pDataObj)
{
m_pDataObj = pDataObj;
pDataObj->AddRef();
}
GatherAppData();
if (SUCCEEDED(pDataObj->GetData(&format,&medium)))
{
HDROP hDrop = static_cast<HDROP>(GlobalLock(medium.hGlobal));
if (hDrop)
{
m_nSelected=DragQueryFile((HDROP&)medium.hGlobal,0xFFFFFFFF,NULL,0);
for(i=0;i<m_nSelected;i++)
{
DragQueryFile((HDROP&)medium.hGlobal,i,szDirectory,MAX_PATH);
if(i==0)
{
_tcscpy(m_szCommand,szDirectory);
_tcscat(m_szCommand,_T("*"));
}
else
{
_tcscat(m_szCommand,szDirectory);
_tcscat(m_szCommand,_T("*"));
}
hr = S_OK;
}
GlobalUnlock(medium.hGlobal);
}
}
return hr;
}
//
// FUNCTION: CDrmShlExt::Initialize(LPCITEMIDLIST, LPDATAOBJECT,
// HKEY)
//
// PURPOSE: Initializes the context menu extension.
//
IFACEMETHODIMP CDrmShlExt::Initialize(
LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID)
{
HRESULT hr = E_INVALIDARG;
if (NULL == pDataObj)
{
return hr;
}
FORMATETC fe = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stm;
// pDataObj contains the objects being acted upon. In this project,
// we get an HDROP handle for enumerating the selected files.
if (SUCCEEDED(pDataObj->GetData(&fe, &stm)))
{
// Get an HDROP handle.
HDROP hDrop = static_cast<HDROP>(GlobalLock(stm.hGlobal));
if (hDrop != NULL)
{
// Determine how many files are involved in this operation.
UINT nFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
if (nFiles != 0)
{
// Get the name of the first file.
if (0 != DragQueryFile(hDrop, 0, m_szFileName, MAX_PATH))
{
hr = S_OK;
}
// [-or-]
//store the list of filenames in our list
wchar_t tmpFile[MAX_PATH]; //temporary string to hold a file
for(UINT i = 0; i < nFiles; i++)
{
if (0 == DragQueryFile(hDrop, i, tmpFile, MAX_PATH))
hr = E_INVALIDARG;
else
this->fileList.push_front(tmpFile);
}
//hr = S_OK;
}
GlobalUnlock(stm.hGlobal);
}
ReleaseStgMedium(&stm);
}
// If any value other than S_OK is returned from the method, the context
// menu is not displayed.
return hr;
}
STDMETHODIMP CDeskBand::Initialize(LPCITEMIDLIST pIDFolder,
LPDATAOBJECT pDataObj,
HKEY /* hRegKey */)
{
m_ContextItems.clear();
m_ContextDirectory.clear();
// get selected files/folders
if (pDataObj)
{
STGMEDIUM medium;
FORMATETC fmte = {(CLIPFORMAT)g_shellidlist,
(DVTARGETDEVICE FAR *)NULL,
DVASPECT_CONTENT,
-1,
TYMED_HGLOBAL};
HRESULT hres = pDataObj->GetData(&fmte, &medium);
if (SUCCEEDED(hres) && medium.hGlobal)
{
//Enumerate PIDLs which the user has selected
CIDA* cida = (CIDA*)GlobalLock(medium.hGlobal);
ItemIDList parent( GetPIDLFolder (cida));
int count = cida->cidl;
for (int i = 0; i < count; ++i)
{
ItemIDList child (GetPIDLItem (cida, i), &parent);
tstring str = child.toString();
if (str.empty() == false)
{
m_ContextItems[str] = ENABLED_VIEWPATH|ENABLED_FOLDERSELECTED|ENABLED_FILESELECTED;
}
}
GlobalUnlock(medium.hGlobal);
ReleaseStgMedium ( &medium );
if (medium.pUnkForRelease)
{
IUnknown* relInterface = (IUnknown*)medium.pUnkForRelease;
relInterface->Release();
}
}
}
// get folder background
if (pIDFolder)
{
ItemIDList list(pIDFolder);
m_ContextDirectory = list.toString();
}
return NOERROR;
}
String UDropTarget::Get(const char *fmt) const
{
FORMATETC fmtetc = ToFORMATETC(fmt);
STGMEDIUM s;
if(data->GetData(&fmtetc, &s) == S_OK && s.tymed == TYMED_HGLOBAL) {
char *val = (char *)GlobalLock(s.hGlobal);
String data(val, (int)GlobalSize(s.hGlobal));
GlobalUnlock(s.hGlobal);
ReleaseStgMedium(&s);
return data;
}
return Null;
}
// Initialize the context menu handler.
IFACEMETHODIMP FileContextMenuExt::Initialize(
LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hKeyProgID)
{
if (NULL == pDataObj)
{
return E_INVALIDARG;
}
HRESULT hr = E_FAIL;
FORMATETC fe = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stm;
// The pDataObj pointer contains the objects being acted upon. In this
// example, we get an HDROP handle for enumerating the selected files and
// folders.
if (SUCCEEDED(pDataObj->GetData(&fe, &stm)))
{
// Get an HDROP handle.
HDROP hDrop = static_cast<HDROP>(GlobalLock(stm.hGlobal));
if (hDrop != NULL)
{
// Determine how many files are involved in this operation. This
// code sample displays the custom context menu item when only
// one file is selected.
UINT nFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
wchar_t szSelectedFile[MAX_PATH];
for (UINT count = 0; count < nFiles;count++)
{
// Get the path of the file.
if (0 == DragQueryFile(hDrop, count,szSelectedFile,
ARRAYSIZE(szSelectedFile)))
{
continue;
}
names.push_back(szSelectedFile);
hr = S_OK;
}
GlobalUnlock(stm.hGlobal);
}
ReleaseStgMedium(&stm);
}
// If any value other than S_OK is returned from the method, the context
// menu item is not displayed.
return hr;
}
HRESULT CPNExt::Initialize( LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID )
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
TCHAR szFile[MAX_PATH+1];
m_files.clear();
// Look for CF_HDROP data in the data object.
if( FAILED( pDataObj->GetData ( &fmt, &stg )) )
{
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// Get a pointer to the actual data.
hDrop = (HDROP) ::GlobalLock( stg.hGlobal );
// Make sure it worked.
if ( NULL == hDrop )
{
::ReleaseStgMedium( &stg );
return E_INVALIDARG;
}
// Sanity check – make sure there is at least one filename.
UINT uNumFiles = ::DragQueryFile( hDrop, 0xFFFFFFFF, NULL, 0 );
if ( 0 == uNumFiles )
{
::GlobalUnlock ( stg.hGlobal );
::ReleaseStgMedium ( &stg );
return E_INVALIDARG;
}
// Get all the filenames...
for( UINT uFile = 0; uFile < uNumFiles; uFile++ )
{
// Get the next filename.
if ( 0 == ::DragQueryFile( hDrop, uFile, szFile, MAX_PATH ))
continue;
m_files.push_back( tstring(szFile) );
}
::GlobalUnlock ( stg.hGlobal );
::ReleaseStgMedium ( &stg );
return ( m_files.size() > 0 ) ? S_OK : E_INVALIDARG;
}
// CSimpleShlExt
//我们要做的是取得被右击选择的文件名,再把该文件名显示在弹出消息框中。
//可能会有多个文件同时被选择右击, 你可以用pDataObj 接口指针获取所有的文件名, 但现在为简单起见, 我们只获取第一个文件名.
//add by ray 2014-05-15 17:45
HRESULT CSimpleShlExt::Initialize ( LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID )
{
//文件名的存放格式与你拖放文件到带WS_EX_ACCEPTFILES风格的窗口时使用的文件名格式是一样的。
// 这就是说我们可以使用同样的API来获取文件名: DragQueryFile().
// 首先我们先获取包含在IdataObject中的数据句柄:
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
// 在数据对象内查找 CF_HDROP 型数据.
if ( FAILED( pDataObj->GetData ( &fmt, &stg )))
{
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// 获得指向实际数据的指针
hDrop = (HDROP) GlobalLock ( stg.hGlobal );
// 检查非NULL.
if ( NULL == hDrop )
{
return E_INVALIDARG;
}
//请注意错误检查，特别是指针的检查。
// 由于我们的扩展运行在 Explorer 进程内, 要是我们的代码崩溃了, Explorer也会随之崩溃. 在Win 9x上, 这样的一个崩溃可能导致需要重启系统.
// 所以, 现在我们有了一个 HDROP 句柄, 我们就可以获取我们需要的文件名了：
// 有效性检查 – 保证最少有一个文件名.
UINT uNumFiles = DragQueryFile ( hDrop, 0xFFFFFFFF, NULL, 0 );
if ( 0 == uNumFiles )
{
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return E_INVALIDARG;
}
HRESULT hr = S_OK;
// 取得第一个文件名并把它保存在类成员m_szFile 中.
if ( 0 == DragQueryFile ( hDrop, 0, m_szFile, MAX_PATH ))
{
hr = E_INVALIDARG;
}
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return hr;
}
IFACEMETHODIMP LiferayNativityContextMenus::Initialize(LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hKeyProgID)
{
if (NULL == pDataObj)
{
return E_INVALIDARG;
}
HRESULT hr = E_FAIL;
FORMATETC fe = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stm;
if (!SUCCEEDED(pDataObj->GetData(&fe, &stm)))
{
return E_FAIL;
}
HDROP hDrop = static_cast<HDROP>(GlobalLock(stm.hGlobal));
if (hDrop == NULL)
{
return E_FAIL;
}
_nFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
if (_nFiles > 0)
{
_contextMenuUtil = new ContextMenuUtil();
wchar_t szFileName[MAX_PATH];
for (UINT i = 0; i < _nFiles; i++)
{
UINT success = DragQueryFile(hDrop, i, szFileName, ARRAYSIZE(szFileName));
if (success != 0)
{
_contextMenuUtil->AddFile(szFileName);
}
}
}
GlobalUnlock(stm.hGlobal);
ReleaseStgMedium(&stm);
return S_OK;
}
STDMETHODIMP CShellExt::Initialize(LPCITEMIDLIST pIDFolder,
LPDATAOBJECT pDataObj,
HKEY hRegKey)
{
FORMATETC format={CF_HDROP,NULL,DVASPECT_CONTENT,-1,TYMED_HGLOBAL};
STGMEDIUM medium;
int i,nLen;
WCHAR szDirectory[MAX_PATH];
HRESULT hr;
TCHAR szAppData[MAX_PATH];
hr = SHGetSpecialFolderPath(NULL, szAppData,CSIDL_COMMON_DESKTOPDIRECTORY ,FALSE);
// Initialize can be called more than once
if (m_pDataObj)
m_pDataObj->Release();
// duplicate the object pointer and registry handle
if (pDataObj)
{
m_pDataObj = pDataObj;
pDataObj->AddRef();
}
pDataObj->GetData(&format,&medium);
m_nSelected=DragQueryFileW((HDROP&)medium.hGlobal,0xFFFFFFFF,NULL,0);
if (m_nSelected == -1 || m_nSelected ==0)
{
wcscpy(m_szCommand,L"DeleteFileInRecycled");
return NOERROR;
}
m_szCommand[0] = L'\0';
for(i=0;i<m_nSelected;i++)
{
DragQueryFileW((HDROP&)medium.hGlobal,i,szDirectory,MAX_PATH);
if (i != 0)
wcscat(m_szCommand,L" ");
nLen = wcslen(m_szCommand);
m_szCommand[nLen] = L'"';
m_szCommand[nLen+1] = L'\0';
wcscat(m_szCommand,szDirectory);
nLen = wcslen(m_szCommand);
m_szCommand[nLen] = L'"';
m_szCommand[nLen+1] = L'\0';
}
return NOERROR;
}
STDMETHODIMP
CShellExtension::Initialize(
LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID)
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
// Look for CF_HDROP data in the data object.
if (FAILED(pDataObj->GetData(&fmt, &stg)))
{
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// Get a pointer to the actual data.
hDrop = (HDROP)GlobalLock(stg.hGlobal);
// Make sure it worked.
if (NULL == hDrop)
return E_INVALIDARG;
// Sanity check - make sure there is at least one filename.
UINT uNumFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
HRESULT hr = S_OK;
if (0 == uNumFiles)
{
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return E_INVALIDARG;
}
m_numFiles = uNumFiles;
TCHAR opString[MAX_PATH];
_stprintf_s(opString, MAX_PATH, TEXT("Found %d files"), uNumFiles);
OutputDebugString(opString);
// Get the name of the first file and store it in our member variable m_szFile.
if (0 == DragQueryFile(hDrop, 0, m_szFile, MAX_PATH))
hr = E_INVALIDARG;
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return hr;
}
STDMETHODIMP CGitExtensionsShellEx::Initialize(LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID)
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
/* store the folder, if provided */
DBG_TRACE(L"CGitExtensionsShellEx::Initialize(pidlFolder=%p)", pidlFolder);
m_szFile[0] = '\0';
if (pidlFolder)
SHGetPathFromIDList(pidlFolder, m_szFile);
if (!pDataObj)
return S_OK;
// Look for CF_HDROP data in the data object.
if (FAILED( pDataObj->GetData(&fmt, &stg)))
{
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// Get a pointer to the actual data.
hDrop = (HDROP)GlobalLock(stg.hGlobal);
// Make sure it worked.
if (NULL == hDrop)
return E_INVALIDARG;
// Sanity check - make sure there is at least one filename.
UINT uNumFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
HRESULT hr = S_OK;
DBG_TRACE(L"uNumFiles=%u", uNumFiles);
if (uNumFiles != 1)
hr = E_INVALIDARG;
// Get the name of the first file and store it in our member variable m_szFile.
else if (!DragQueryFile(hDrop, 0, m_szFile, MAX_PATH))
hr = E_INVALIDARG;
DBG_TRACE(L"m_szFile=%s", m_szFile);
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return hr;
}
STDMETHODIMP ExifShellExtension::Initialize(
LPCITEMIDLIST /*pidlFolder*/, LPDATAOBJECT pDataObj, HKEY /*hProgID*/)
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
// Look for CF_HDROP data in the data object.
if (FAILED(pDataObj->GetData(&fmt, &stg)))
{
// Nope! Return an "invalid argument" error back to Explorer.
return E_INVALIDARG;
}
// Get a pointer to the actual data.
HDROP hDrop = (HDROP) GlobalLock(stg.hGlobal);
// Make sure it worked.
if (NULL == hDrop)
return E_INVALIDARG;
// Sanity check - make sure there is at least one filename.
UINT uNumFiles = DragQueryFile(hDrop, 0xFFFFFFFF, NULL, 0);
HRESULT hr = S_OK;
if (1 != uNumFiles)
{
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return E_INVALIDARG;
}
// Get the name of the file and store it
TCHAR szFile[MAX_PATH];
UINT u = 0;
if (0 == DragQueryFile(hDrop, u, szFile, MAX_PATH))
hr = E_INVALIDARG;
else
m_cszFilename = szFile;
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return hr;
}
HRESULT CZipContextMenu::GetFileNames(LPDATAOBJECT dataObject, UStringVector &fileNames)
{
fileNames.Clear();
if(dataObject == NULL)
return E_FAIL;
FORMATETC fmte = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
NCOM::CStgMedium stgMedium;
HRESULT result = dataObject->GetData(&fmte, &stgMedium);
if (result != S_OK)
return result;
stgMedium._mustBeReleased = true;
NShell::CDrop drop(false);
NMemory::CGlobalLock globalLock(stgMedium->hGlobal);
drop.Attach((HDROP)globalLock.GetPointer());
drop.QueryFileNames(fileNames);
return S_OK;
}
// IShellExtInit::Initialize
HRESULT CCopyPathExt::Initialize(LPCITEMIDLIST /*pidlFolder*/, LPDATAOBJECT lpdobj, HKEY /*hKeyProgID*/)
{
try
{
if ( lpdobj == NULL )
return E_INVALIDARG;
// Get the data as CF_HDROP
STGMEDIUM medium;
FORMATETC fe = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
HRESULT hr = lpdobj->GetData( &fe, &medium );
if ( FAILED( hr ) )
return E_INVALIDARG;
// Get the number of selected files
//得到选择文件数量
m_cFiles = DragQueryFile( reinterpret_cast<HDROP>(medium.hGlobal), 0xFFFFFFFF, NULL, NULL );
// Build the list of file names
m_lstFiles.clear();
for ( int iFile = 0; iFile < m_cFiles; iFile++ )
{
//得到选择文件名
// Get the name of the selected file
memset( m_szFile, 0, sizeof m_szFile );
DragQueryFile( reinterpret_cast<HDROP>(medium.hGlobal),
iFile,
m_szFile,
sizeof(m_szFile)/sizeof(m_szFile[0]) );
m_lstFiles.push_back( m_szFile );
}
//释放菜单
ReleaseStgMedium(&medium);
return hr;
}
catch ( ... )
{
return E_FAIL;
}
};
// IShellExtInit
STDMETHODIMP CWorkshareMenu::Initialize(LPCITEMIDLIST pidlFolder, LPDATAOBJECT lpdobj, HKEY hkeyProgID)
{
if (lpdobj == NULL)
return E_INVALIDARG;
// The file can be referenced through the STGMEDIUM structure
// that is retrievable through the IDataObject pointer, and
// DragQueryFile can then be used to retrieve the file name.
STGMEDIUM medium;
FORMATETC fe = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
if(FAILED(lpdobj->GetData(&fe, &medium)))
return E_INVALIDARG;
CollectFilenames(reinterpret_cast<HDROP>(medium.hGlobal));
ReleaseStgMedium(&medium);
return S_OK;
}
STDMETHODIMP CExRichEditWindowless::QueryAcceptData(LPDATAOBJECT lpdataobj, CLIPFORMAT FAR *lpcfFormat,DWORD reco, BOOL fReally, HGLOBAL hMetaPict)
{
if ( NULL == lpdataobj )
return E_INVALIDARG;
HRESULT hr;
FORMATETC formatEtc;
STGMEDIUM stgMedium;
UINT uFormat = m_uOwnOleClipboardFormat;
if (0 == uFormat)
{
return E_FAIL;
}
SecureZeroMemory(&formatEtc, sizeof(FORMATETC));
formatEtc.cfFormat = uFormat;
formatEtc.dwAspect = DVASPECT_CONTENT;
formatEtc.lindex = -1;
formatEtc.ptd = NULL;
formatEtc.tymed = TYMED_HGLOBAL;
hr = lpdataobj->GetData(&formatEtc, &stgMedium);
if (S_OK == hr)
{
LPTSTR pDest = LPTSTR(::GlobalLock(stgMedium.hGlobal));
if (pDest != NULL)
{
ReplaceSel(CString(pDest),true);
::GlobalUnlock(stgMedium.hGlobal);
::ReleaseStgMedium( &stgMedium );
return S_OK;
}
else
{
::ReleaseStgMedium( &stgMedium );
return E_FAIL;
}
}
return S_OK;
}
STDMETHODIMP CHashCheck::Initialize( LPCITEMIDLIST pidlFolder, LPDATAOBJECT pdtobj, HKEY hkeyProgID )
{
// We'll be needing a buffer, and let's double it just to be safe
TCHAR szPath[MAX_PATH << 1];
// Make sure that we are working with a fresh list
SLRelease(m_hList);
m_hList = SLCreate();
// This indent exists to facilitate diffing against the CmdOpen source
{
FORMATETC format = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM medium;
if (!pdtobj || pdtobj->GetData(&format, &medium) != S_OK)
return(E_INVALIDARG);
if (HDROP hDrop = (HDROP)GlobalLock(medium.hGlobal))
{
UINT uDrops = DragQueryFile(hDrop, -1, NULL, 0);
for (UINT uDrop = 0; uDrop < uDrops; ++uDrop)
{
if (DragQueryFile(hDrop, uDrop, szPath, countof(szPath)))
{
SLAddStringI(m_hList, szPath);
}
}
GlobalUnlock(medium.hGlobal);
}
ReleaseStgMedium(&medium);
}
// If there was any failure, the list would be empty...
return((SLCheck(m_hList)) ? S_OK : E_INVALIDARG);
}
STDMETHODIMP CContextMenuExt::Initialize( LPCITEMIDLIST pidlFolder, LPDATAOBJECT pDataObj, HKEY hProgID )
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
// Look for CF_HDROP data in the data object. If there is no such data, return an error back to Explorer.
if ( FAILED( pDataObj->GetData ( &fmt, &stg ) ))
return E_INVALIDARG;
// Get a pointer to the actual data.
hDrop = (HDROP) GlobalLock ( stg.hGlobal );
// Make sure it worked.
if ( NULL == hDrop )
return E_INVALIDARG;
// Sanity check, make sure there is at least one filename.
UINT uNumFiles = DragQueryFile ( hDrop, 0xFFFFFFFF, NULL, 0 );
HRESULT hr = S_OK;
if ( 0 == uNumFiles )
{
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return E_INVALIDARG;
}
// Get the name of the first file and store it in our member variable m_szFile.
if ( 0 == DragQueryFile ( hDrop, 0, m_szFile, MAX_PATH ) )
hr = E_INVALIDARG;
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return hr;
}