mirror of
https://github.com/fadden/ciderpress.git
synced 2024-10-31 16:04:54 +00:00
139 lines
4.2 KiB
C++
139 lines
4.2 KiB
C++
// ImageDataObject.h: Impementation for IDataObject Interface to be used
|
|
// in inserting bitmap to the RichEdit Control.
|
|
//
|
|
// Author : Hani Atassi (atassi@arabteam2000.com)
|
|
//
|
|
// How to use : Just call the static member InsertBitmap with
|
|
// the appropriate parrameters.
|
|
//
|
|
// Known bugs :
|
|
//
|
|
//
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
#include "stdafx.h"
|
|
#include "ImageDataObject.h"
|
|
|
|
#ifdef _DEBUG
|
|
#undef THIS_FILE
|
|
static char THIS_FILE[]=__FILE__;
|
|
#define new DEBUG_NEW
|
|
#endif
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Static member functions
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
void CImageDataObject::InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap)
|
|
{
|
|
SCODE sc;
|
|
|
|
// Get the image data object
|
|
//
|
|
CImageDataObject *pods = new CImageDataObject;
|
|
LPDATAOBJECT lpDataObject;
|
|
pods->QueryInterface(IID_IDataObject, (void **)&lpDataObject);
|
|
|
|
pods->SetBitmap(hBitmap);
|
|
|
|
// Get the RichEdit container site
|
|
//
|
|
IOleClientSite *pOleClientSite;
|
|
pRichEditOle->GetClientSite(&pOleClientSite);
|
|
|
|
// Initialize a Storage Object
|
|
//
|
|
IStorage *pStorage;
|
|
|
|
LPLOCKBYTES lpLockBytes = NULL;
|
|
sc = ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
|
|
if (sc != S_OK)
|
|
AfxThrowOleException(sc);
|
|
ASSERT(lpLockBytes != NULL);
|
|
|
|
sc = ::StgCreateDocfileOnILockBytes(lpLockBytes,
|
|
STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE, 0, &pStorage);
|
|
if (sc != S_OK)
|
|
{
|
|
VERIFY(lpLockBytes->Release() == 0);
|
|
lpLockBytes = NULL;
|
|
AfxThrowOleException(sc);
|
|
}
|
|
ASSERT(pStorage != NULL);
|
|
|
|
// The final ole object which will be inserted in the richedit control
|
|
//
|
|
IOleObject *pOleObject;
|
|
pOleObject = pods->GetOleObject(pOleClientSite, pStorage);
|
|
|
|
// 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;
|
|
ZeroMemory(&reobject, sizeof(REOBJECT));
|
|
reobject.cbStruct = sizeof(REOBJECT);
|
|
|
|
CLSID clsid;
|
|
sc = pOleObject->GetUserClassID(&clsid);
|
|
if (sc != S_OK)
|
|
AfxThrowOleException(sc);
|
|
|
|
reobject.clsid = clsid;
|
|
reobject.cp = REO_CP_SELECTION;
|
|
reobject.dvaspect = DVASPECT_CONTENT;
|
|
reobject.poleobj = pOleObject;
|
|
reobject.polesite = pOleClientSite;
|
|
reobject.pstg = pStorage;
|
|
|
|
// Insert the bitmap at the current location in the richedit control
|
|
//
|
|
pRichEditOle->InsertObject(&reobject);
|
|
|
|
// Release all unnecessary interfaces
|
|
//
|
|
pOleObject->Release();
|
|
pOleClientSite->Release();
|
|
lpLockBytes->Release(); // new
|
|
pStorage->Release();
|
|
lpDataObject->Release();
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
void CImageDataObject::SetBitmap(HBITMAP hBitmap)
|
|
{
|
|
ASSERT(hBitmap);
|
|
|
|
STGMEDIUM stgm;
|
|
stgm.tymed = TYMED_GDI; // Storage medium = HBITMAP handle
|
|
stgm.hBitmap = hBitmap;
|
|
stgm.pUnkForRelease = NULL; // Use ReleaseStgMedium
|
|
|
|
FORMATETC fm;
|
|
fm.cfFormat = CF_BITMAP; // Clipboard format = CF_BITMAP
|
|
fm.ptd = NULL; // Target Device = Screen
|
|
fm.dwAspect = DVASPECT_CONTENT; // Level of detail = Full content
|
|
fm.lindex = -1; // Index = Not applicaple
|
|
fm.tymed = TYMED_GDI; // Storage medium = HBITMAP handle
|
|
|
|
this->SetData(&fm, &stgm, TRUE);
|
|
}
|
|
|
|
IOleObject *CImageDataObject::GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage)
|
|
{
|
|
ASSERT(m_stgmed.hBitmap);
|
|
|
|
SCODE sc;
|
|
IOleObject *pOleObject;
|
|
sc = ::OleCreateStaticFromData(this, IID_IOleObject, OLERENDER_FORMAT,
|
|
&m_fromat, pOleClientSite, pStorage, (void **)&pOleObject);
|
|
if (sc != S_OK)
|
|
AfxThrowOleException(sc);
|
|
return pOleObject;
|
|
}
|