TEST(iDataObjectTest,Simple)
{
IDataObject *pDataObject = NULL;
CreateDataObject(NULL,NULL,&pDataObject,0);
FORMATETC ftc;
ftc.cfFormat = CF_TEXT;
ftc.dwAspect = DVASPECT_CONTENT;
ftc.lindex = -1;
ftc.ptd = NULL;
ftc.tymed = TYMED_HGLOBAL;
EXPECT_EQ(DV_E_FORMATETC,pDataObject->QueryGetData(&ftc));
EXPECT_EQ(E_NOTIMPL,pDataObject->DAdvise(NULL,ADVF_NODATA,NULL,NULL));
EXPECT_EQ(OLE_E_ADVISENOTSUPPORTED,pDataObject->DUnadvise(0));
EXPECT_EQ(OLE_E_ADVISENOTSUPPORTED,pDataObject->EnumDAdvise(NULL));
}
void Explorerplusplus::OnAddressBarBeginDrag(void)
{
IDragSourceHelper *pDragSourceHelper = NULL;
IDropSource *pDropSource = NULL;
HRESULT hr;
hr = CoCreateInstance(CLSID_DragDropHelper,NULL,CLSCTX_ALL,
IID_IDragSourceHelper,(LPVOID *)&pDragSourceHelper);
if(SUCCEEDED(hr))
{
hr = CreateDropSource(&pDropSource,DRAG_TYPE_LEFTCLICK);
if(SUCCEEDED(hr))
{
LPITEMIDLIST pidlDirectory = m_pActiveShellBrowser->QueryCurrentDirectoryIdl();
FORMATETC ftc[2];
STGMEDIUM stg[2];
SetFORMATETC(&ftc[0],(CLIPFORMAT)RegisterClipboardFormat(CFSTR_FILEDESCRIPTOR),
NULL,DVASPECT_CONTENT,-1,TYMED_HGLOBAL);
HGLOBAL hglb = GlobalAlloc(GMEM_MOVEABLE,1000);
FILEGROUPDESCRIPTOR *pfgd = static_cast<FILEGROUPDESCRIPTOR *>(GlobalLock(hglb));
pfgd->cItems = 1;
FILEDESCRIPTOR *pfd = (FILEDESCRIPTOR *)((LPBYTE)pfgd + sizeof(UINT));
/* File information (name, size, date created, etc). */
pfd[0].dwFlags = FD_ATTRIBUTES|FD_FILESIZE;
pfd[0].dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
pfd[0].nFileSizeLow = 16384;
pfd[0].nFileSizeHigh = 0;
/* The name of the file will be the folder name, followed by .lnk. */
TCHAR szDisplayName[MAX_PATH];
GetDisplayName(pidlDirectory,szDisplayName,SHGDN_INFOLDER);
StringCchCat(szDisplayName,SIZEOF_ARRAY(szDisplayName),_T(".lnk"));
StringCchCopy(pfd[0].cFileName,SIZEOF_ARRAY(pfd[0].cFileName),szDisplayName);
GlobalUnlock(hglb);
stg[0].pUnkForRelease = 0;
stg[0].hGlobal = hglb;
stg[0].tymed = TYMED_HGLOBAL;
/* File contents. */
SetFORMATETC(&ftc[1],(CLIPFORMAT)RegisterClipboardFormat(CFSTR_FILECONTENTS),
NULL,DVASPECT_CONTENT,-1,TYMED_HGLOBAL);
hglb = GlobalAlloc(GMEM_MOVEABLE,16384);
IShellLink *pShellLink = NULL;
IPersistStream *pPersistStream = NULL;
HRESULT hr;
hr = CoCreateInstance(CLSID_ShellLink,NULL,CLSCTX_INPROC_SERVER,
IID_IShellLink,(LPVOID*)&pShellLink);
if(SUCCEEDED(hr))
{
TCHAR szPath[MAX_PATH];
GetDisplayName(pidlDirectory,szPath,SHGDN_FORPARSING);
pShellLink->SetPath(szPath);
hr = pShellLink->QueryInterface(IID_IPersistStream,(LPVOID*)&pPersistStream);
if(SUCCEEDED(hr))
{
IStream *pStream = NULL;
CreateStreamOnHGlobal(hglb,FALSE,&pStream);
hr = pPersistStream->Save(pStream,TRUE);
}
}
GlobalUnlock(hglb);
stg[1].pUnkForRelease = 0;
stg[1].hGlobal = hglb;
stg[1].tymed = TYMED_HGLOBAL;
IDataObject *pDataObject = NULL;
POINT pt = {0,0};
hr = CreateDataObject(ftc,stg,&pDataObject,2);
pDragSourceHelper->InitializeFromWindow(m_hAddressBar,&pt,pDataObject);
DWORD dwEffect;
DoDragDrop(pDataObject,pDropSource,DROPEFFECT_LINK,&dwEffect);
CoTaskMemFree(pidlDirectory);
pDataObject->Release();
pDropSource->Release();
}
pDragSourceHelper->Release();
}
}
// returns true on success, false on failure
//bool InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap, HGLOBAL hGlobal)
bool InsertBitmap(IRichEditOle* pRichEditOle, HENHMETAFILE hEmf)
{
SCODE sc;
// Get the image data object
//
static const FORMATETC lc_format[] =
{
{ CF_ENHMETAFILE, 0, DVASPECT_CONTENT, -1, TYMED_ENHMF }//,
// { CF_BITMAP, 0, DVASPECT_CONTENT, -1, TYMED_GDI },
// { CF_TEXT, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }
};
STGMEDIUM lc_stgmed[] =
{
{ TYMED_ENHMF, { (HBITMAP)hEmf }, 0 }//,
// { TYMED_GDI, { hBitmap }, 0 },
// { TYMED_HGLOBAL, { (HBITMAP)hGlobal }, 0 }
};
IDataObject *pods;
CreateDataObject(lc_format, lc_stgmed, 1, &pods);
// Get the RichEdit container site
//
IOleClientSite *pOleClientSite;
pRichEditOle->GetClientSite(&pOleClientSite);
// Initialize a Storage Object
//
LPLOCKBYTES lpLockBytes = NULL;
sc = CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
if (sc != S_OK)
{
pOleClientSite->Release();
return false;
}
IStorage *pStorage;
sc = StgCreateDocfileOnILockBytes(lpLockBytes,
STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_READWRITE, 0, &pStorage);
if (sc != S_OK)
{
lpLockBytes->Release();
pOleClientSite->Release();
return false;
}
// The final ole object which will be inserted in the richedit control
//
IOleObject *pOleObject;
sc = OleCreateStaticFromData(pods, IID_IOleObject, OLERENDER_FORMAT,
(LPFORMATETC)lc_format, pOleClientSite, pStorage, (void **)&pOleObject);
if (sc != S_OK)
{
pStorage->Release();
lpLockBytes->Release();
pOleClientSite->Release();
return false;
}
// all items are "contained" -- this makes our reference to this object
// weak -- which is needed for links to embedding silent update.
OleSetContainedObject(pOleObject, TRUE);
// Now Add the object to the RichEdit
//
REOBJECT reobject = { 0 };
reobject.cbStruct = sizeof(REOBJECT);
reobject.cp = REO_CP_SELECTION;
reobject.dvaspect = DVASPECT_CONTENT;
reobject.poleobj = pOleObject;
reobject.polesite = pOleClientSite;
reobject.pstg = pStorage;
reobject.dwFlags = REO_BELOWBASELINE;
sc = pOleObject->GetUserClassID(&reobject.clsid);
if (sc != S_OK)
{
pOleObject->Release();
pStorage->Release();
lpLockBytes->Release();
pOleClientSite->Release();
return false;
}
// Insert the bitmap at the current location in the richedit control
//
sc = pRichEditOle->InsertObject(&reobject);
// Release all unnecessary interfaces
//
pOleObject->Release();
pStorage->Release();
lpLockBytes->Release();
pOleClientSite->Release();
pods->Release();
return sc == S_OK;
}
void CreateEmptyDataObject(IDataObject **pDataObject)
{
HRESULT hr = CreateDataObject(NULL, NULL, pDataObject, 0);
ASSERT_TRUE(SUCCEEDED(hr));
}
