关于RichEditctrl显示图片的问题，谢谢

2014-07-25 11:51:28 315 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

复信号的调制与解调（基带） Digital modulation methods can be considered as digital-to-analog conversion and the corresponding demodulation or detection as analog-to-digital conversion. 数字调制可以看成是数字到模拟的变换，同样，数字解调也可以看作是模拟向数字的转换。阅读详情

我给一个RichEditctrl插入一个bmp图片，这个图片很大，在RichEditctrl里只显示了图片的左上部分，请问怎么样可以让控件显示完整的图片，谢谢大家





InsertBitmap(&CString("d:\\Pic_BackGround.bmp"));  



void ProjectionManagerDlg::InsertBitmap(CString *pBmpFile)   

{   

	HBITMAP bmp;   

	//创建HBITMAP    

	bmp = (HBITMAP)::LoadImage(NULL, *pBmpFile, IMAGE_BITMAP, 0, 0,   

		LR_LOADFROMFILE|LR_DEFAULTCOLOR|LR_DEFAULTSIZE);   



	STGMEDIUM stgm;   

	stgm.tymed = TYMED_GDI;   

	stgm.hBitmap = bmp;   

	stgm.pUnkForRelease = NULL;   



	FORMATETC fm;   

	fm.cfFormat = CF_BITMAP;   

	fm.ptd = NULL;   

	fm.dwAspect = DVASPECT_CONTENT;   

	fm.lindex = -1;   

	fm.tymed = TYMED_GDI;    



	//创建输入数据源    

	IStorage *pStorage;   



	//分配内存    

	LPLOCKBYTES lpLockBytes = NULL;   

	SCODE 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);   



	COleDataSource *pDataSource = new COleDataSource;   

	pDataSource->CacheData(CF_BITMAP, &stgm);   

	LPDATAOBJECT lpDataObject =   

		(LPDATAOBJECT)pDataSource->GetInterface(&IID_IDataObject);   



	//获取RichEdit的OLEClientSite    

	LPOLECLIENTSITE lpClientSite;   

	

	this->m_richedit_projection.GetIRichEditOle()->GetClientSite(&lpClientSite);  



	//创建OLE对象    

	IOleObject *pOleObject;   

	sc = OleCreateStaticFromData(lpDataObject,IID_IOleObject,OLERENDER_FORMAT,   

		&fm,lpClientSite,pStorage,(void **)&pOleObject);   

	if(sc!=S_OK)   

		AfxThrowOleException(sc);   



	//插入OLE对象    

	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 = lpClientSite;   

	reobject.pstg = pStorage;   



	HRESULT hr = this->m_richedit_projection.GetIRichEditOle()->InsertObject( &reobject );   



	delete pDataSource;   

}