FAQ200412:怎么在一个静态Picture控件中显示JPG文件

my example:
HBITMAP CPicture::LoadImageFromID(UINT nIDRes)
{
try
{
HMODULE hInst=GetModuleHandle(NULL);
LPCTSTR lpRes = MAKEINTRESOURCE(nIDRes);
HRSRC hRsrc = ::FindResource(hInst, lpRes, "JPG");
if (NULL == hRsrc)
return FALSE;

HGLOBAL hGlobal = LoadResource(hInst, hRsrc);
if (NULL == hGlobal)
return FALSE;

DWORD dwSize = SizeofResource(hInst, hRsrc);
LPVOID lpData = LockResource(hGlobal);
if (NULL == lpData)
return FALSE;

// alloc memory based on file size
HGLOBAL hJPG = ::GlobalAlloc(GMEM_MOVEABLE, dwSize);
LPVOID lpJGP = ::GlobalLock(hJPG);
memcpy(lpJGP, lpData, dwSize);
::GlobalUnlock(hJPG);

//LPVOID pvData = GlobalLock(hGlobal);
//_ASSERTE(NULL != pvData);

// read file and store in global memory

LPSTREAM pstm = NULL;
// create IStream* from global memory
HRESULT hr = CreateStreamOnHGlobal(hJPG, TRUE, &pstm);
_ASSERTE(SUCCEEDED(hr) && pstm);

// Create IPicture from image file
LPPICTURE gpPicture;

hr = ::OleLoadPicture(pstm, dwSize, FALSE, IID_IPicture, (LPVOID *)&gpPicture);
_ASSERTE(SUCCEEDED(hr) && gpPicture);
pstm->Release();

OLE_HANDLE m_picHandle;

gpPicture->get_Handle(&m_picHandle);
return (HBITMAP)m_picHandle;
}
catch (...)
{

}
return NULL;
}
//call
CPicture pic;
HBITMAP hbmp=pic.LoadImageFromID(IDR_TODAY);//IDR_TODAY is jpg id
(HBITMAP)::SendMessage(::GetDlgItem(this->m_hWnd,IDC_TODAY), STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hbmp);