Timothy's Space 君看一叶舟，出没风波里

用qq的ImageOle.dll

// MyRichEdit.cpp : implementation file
//

#include “stdafx.h”
#include “ZJP.h”
#include “MyRichEdit.h”
#include “Richole.h”

#import “E:\\Program files\\tencent\\qq\\ImageOle.dll” named_guids

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMyRichEdit

CMyRichEdit::CMyRichEdit()
{
}

CMyRichEdit::~CMyRichEdit()
{
}

BEGIN_MESSAGE_MAP(CMyRichEdit, CRichEditCtrl)
//{{AFX_MSG_MAP(CMyRichEdit)
// NOTE – the ClassWizard will add and remove mapping macros here.
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyRichEdit message handlers

void CMyRichEdit::InsertGraphics(CString strPicPath)
{
LPLOCKBYTES lpLockBytes = NULL;
SCODE sc;
HRESULT hr;
//print to RichEdit’ s IClientSite
LPOLECLIENTSITE m_lpClientSite;
//A smart point to IAnimator
ImageOleLib::IGifAnimatorPtr m_lpAnimator;
//ptr 2 storage
LPSTORAGE m_lpStorage;
//the object 2 b insert 2
LPOLEOBJECT m_lpObject;
//Create lockbytes
sc = ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
if (sc != S_OK)
AfxThrowOleException(sc);
ASSERT(lpLockBytes != NULL);
//use lockbytes to create storage
sc = ::StgCreateDocfileOnILockBytes(lpLockBytes,
STGM_SHARE_EXCLUSIVE ¦STGM_CREATE ¦STGM_READWRITE, 0, &m_lpStorage);
if (sc != S_OK)
{
VERIFY(lpLockBytes->Release() == 0);
lpLockBytes = NULL;
AfxThrowOleException(sc);
}
ASSERT(m_lpStorage != NULL);
//get the ClientSite of the very RichEditCtrl
GetIRichEditOle()->GetClientSite(&m_lpClientSite);
ASSERT(m_lpClientSite != NULL);
try
{
//Initlize COM interface

hr = ::CoInitialize(NULL) ;//( NULL, COINIT_APARTMENTTHREADED );
if( FAILED(hr) )
_com_issue_error(hr);

//Get GifAnimator object
//here, I used a smart point, so I do not need to free it
hr = m_lpAnimator.CreateInstance(ImageOleLib::CLSID_GifAnimator);
if( FAILED(hr) )
_com_issue_error(hr);
//COM operation need BSTR, so get a BSTR
BSTR path = strPicPath.AllocSysString();

//Load the gif
hr = m_lpAnimator->LoadFromFile(path);
if( FAILED(hr) )
_com_issue_error(hr);

TRACE0( m_lpAnimator->GetFilePath() );

//get the IOleObject
hr = m_lpAnimator.QueryInterface(IID_IOleObject, (void**)&m_lpObject);
if( FAILED(hr) )
_com_issue_error(hr);

//Set it 2 b inserted
OleSetContainedObject(m_lpObject, TRUE);

//2 insert in 2 richedit, you need a struct of REOBJECT
REOBJECT reobject;
ZeroMemory(&reobject, sizeof(REOBJECT));

reobject.cbStruct = sizeof(REOBJECT);
CLSID clsid;
sc = m_lpObject->GetUserClassID(&clsid);
if (sc != S_OK)
AfxThrowOleException(sc);
//set clsid
reobject.clsid = clsid;
//can be selected
reobject.cp = REO_CP_SELECTION;
//content, but not static
reobject.dvaspect = DVASPECT_CONTENT;
//goes in the same line of text line
reobject.dwFlags = REO_BELOWBASELINE; //REO_RESIZABLE ¦
reobject.dwUser = 0;
//the very object
reobject.poleobj = m_lpObject;
//client site contain the object
reobject.polesite = m_lpClientSite;
//the storage
reobject.pstg = m_lpStorage;

SIZEL sizel;
sizel.cx = sizel.cy = 0;
reobject.sizel = sizel;
HWND hWndRT = this->m_hWnd;
//Sel all text
// ::SendMessage(hWndRT, EM_SETSEL, 0, -1);
// DWORD dwStart, dwEnd;
// ::SendMessage(hWndRT, EM_GETSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
// ::SendMessage(hWndRT, EM_SETSEL, dwEnd+1, dwEnd+1);
//Insert after the line of text
GetIRichEditOle()->InsertObject(&reobject);
::SendMessage(hWndRT, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
VARIANT_BOOL ret;
//do frame changing
ret = m_lpAnimator->TriggerFrameChange();
//show it
m_lpObject->DoVerb(OLEIVERB_UIACTIVATE, NULL, m_lpClientSite, 0, m_hWnd, NULL);
m_lpObject->DoVerb(OLEIVERB_SHOW, NULL, m_lpClientSite, 0, m_hWnd, NULL);

//redraw the window to show animation
RedrawWindow();

if (m_lpClientSite)
{
m_lpClientSite->Release();
m_lpClientSite = NULL;
}
if (m_lpObject)
{
m_lpObject->Release();
m_lpObject = NULL;
}
if (m_lpStorage)
{
m_lpStorage->Release();
m_lpStorage = NULL;
}

SysFreeString(path);
}
catch( _com_error e )
{
AfxMessageBox(e.ErrorMessage());
::CoUninitialize();
}
}

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