C++ 加载PNG资源图片

void LoadResImage(int nResID,Image * &lpImage)
{
	HMODULE hModule=AfxGetInstanceHandle();
	HRSRC hRsrc = ::FindResource (hModule,MAKEINTRESOURCE(nResID),_T("PNG")); // type 
	if (!hRsrc) 
		return; 
	// load resource into memory 
	DWORD len = SizeofResource(hModule, hRsrc); 
	BYTE* lpRsrc = (BYTE*)LoadResource(hModule, hRsrc); 
	if (!lpRsrc) 
		return; 
	// Allocate global memory on which to create stream 
	HGLOBAL m_hMem = GlobalAlloc(GMEM_FIXED, len); 
	BYTE* pmem = (BYTE*)GlobalLock(m_hMem); 
	memcpy(pmem,lpRsrc,len); 
	IStream* pstm; 
	CreateStreamOnHGlobal(m_hMem,FALSE,&pstm); 
	// load from stream 
	lpImage=Gdiplus::Image::FromStream(pstm); 
	// free/release stuff 
	GlobalUnlock(m_hMem); 
	pstm->Release(); 
	FreeResource(lpRsrc);
}