想在crichedit中插入GIF动画,会的请帮下

Question

找了点相关资料,看很多人都是用到QQ的imageole.dll,但我基础不是很好,有会的请祥细帮下

Answer 1

这个得写一个控件插入richedit中的.imageole.dll是QQ写好的控件

Answer 2

是不是要重写richedit类?重写的时候要用到imageole

Answer 3

richedit不需要重写，写控件就可以了。如果使用imageole的话连控件都不用写。

Answer 4

就按楼上所说的，在RichEdit中直接嵌入一个OLE对象，用这个OLE对象来显示gif动画。

Answer 5

要怎么嵌入,还有OLE和GIF动画要怎么建立关系,他们的关系是怎么样的..这些我不太明白喔

Answer 6

帮你找到如下代码，使用之前要通过#import语句导入imageole的类型库：void UnmanagedInsertGif(int hwndRichEdit,wchar_t * pFilePath)
{
HWND h=(HWND)hwndRichEdit;

LPRICHEDITOLE lpRichEditOle=NULL;
LPOLEOBJECT lpObject=NULL;
LPSTORAGE       lpStorage=NULL;
LPOLECLIENTSITE lpClientSite=NULL;
LPLOCKBYTES lpLockBytes = NULL; REOBJECT reobject;
ZeroMemory(&reobject, sizeof(REOBJECT));
reobject.cbStruct = sizeof(REOBJECT); HRESULT hr=S_OK;
CLSID clsid=CLSID_NULL;
do{
::SendMessage(h, EM_GETOLEINTERFACE, 0, (LPARAM)&lpRichEditOle);
if(lpRichEditOle==NULL)break;
hr= ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
if (hr != S_OK||lpLockBytes==NULL) break;
hr= ::StgCreateDocfileOnILockBytes(lpLockBytes,
STGM_SHARE_EXCLUSIVE|STGM_CREATE|STGM_READWRITE, 0, &lpStorage);
if (hr!= S_OK||lpStorage==NULL) break;
hr=lpRichEditOle->GetClientSite(&lpClientSite);
if (hr!= S_OK||lpClientSite==NULL) break;
try
{
ImageOleLib::IGifAnimatorPtr lpAnimator;
hr = lpAnimator.CreateInstance(ImageOleLib::CLSID_GifAnimator);
if( FAILED(hr) ) _com_issue_error(hr);
_bstr_t bstrPath(pFilePath);
hr = lpAnimator->LoadFromFile(bstrPath);
if( FAILED(hr) ) _com_issue_error(hr);
hr = lpAnimator.QueryInterface(IID_IOleObject, (void**)&lpObject);
if( FAILED(hr)||lpObject==NULL) _com_issue_error(hr);
hr=OleSetContainedObject(lpObject, TRUE);
if( FAILED(hr) ) _com_issue_error(hr);
hr=lpObject->GetUserClassID(&clsid);
if( FAILED(hr) ) _com_issue_error(hr);
reobject.clsid = clsid;
reobject.cp = REO_CP_SELECTION;
reobject.dvaspect = DVASPECT_CONTENT;
reobject.dwFlags = REO_BELOWBASELINE;
reobject.dwUser = 0;
reobject.poleobj = lpObject;
reobject.polesite = lpClientSite;
reobject.pstg = lpStorage;
SIZEL sizel={0,0};
reobject.sizel = sizel;
hr=lpRichEditOle->InsertObject(&reobject);
}
catch( _com_error e )
{
LPCTSTR lpszErrMessage=e.ErrorMessage();
} }while(FALSE);
if(lpLockBytes)
lpObject->Release();
if(lpLockBytes)
lpLockBytes->Release();
if(lpClientSite)
lpClientSite->Release();
if(lpRichEditOle)
lpRichEditOle->Release();
}
void UnmanagedGifTriggerFrameChange(int hwndRichEdit)
{
HWND h=(HWND)hwndRichEdit;

LPRICHEDITOLE lpRichEditOle=NULL;
LPOLECLIENTSITE lpClientSite=NULL;
LPOLECONTAINER lpContainer=NULL;
LPENUMUNKNOWN lpEnumUnknown=NULL;
HRESULT hr=S_OK;
do{
::SendMessage(h, EM_GETOLEINTERFACE, 0, (LPARAM)&lpRichEditOle);
if(lpRichEditOle==NULL)break;
hr=lpRichEditOle->GetClientSite(&lpClientSite);
if (hr!= S_OK||lpClientSite==NULL) break;
hr=lpClientSite->GetContainer(&lpContainer);
if (hr!= S_OK||lpClientSite==NULL) break;
hr=lpContainer->EnumObjects(OLECONTF_EMBEDDINGS,&lpEnumUnknown);
if (hr!= S_OK||lpEnumUnknown==NULL) break; IUnknown* pUnk=NULL;
ULONG uFetched=0;
for (UINT i = 0; S_OK == lpEnumUnknown->Next(1, &pUnk, &uFetched); i++)
{
ImageOleLib::IGifAnimator* pAnimator=NULL;
do{
hr=pUnk->QueryInterface(__uuidof(ImageOleLib::IGifAnimator),(LPVOID*)&pAnimator);
if (hr!= S_OK) break;
try{
ImageOleLib::IGifAnimatorPtr lpAnimator;
lpAnimator.Attach(pAnimator,true);
lpAnimator->TriggerFrameChange();
}
catch( _com_error e )
{
LPCTSTR lpszErrMessage=e.ErrorMessage();
}
}
while(FALSE);
pUnk->Release();
if(pAnimator)
pAnimator->Release();
}
}while(FALSE);
if(lpEnumUnknown)
lpEnumUnknown->Release();
if(lpContainer)
lpContainer->Release();
if(lpRichEditOle)
lpRichEditOle->Release();
if(lpClientSite)
lpClientSite->Release();
}