FindResourceEx 返回失败

[江东橘子]

各位大侠：小弟在资源里添加了自己定义的一个文件，test.ldr。可运行总是失败，hRes返回值是0.
GetLastError()得到是值是1813。要怎样才能读取这个文件啊？

下面是代码：在window.h文件里添加了RT_LDR
window.h
#define RT_LDR MAKEINTRESOURCE(24)

Test.Cpp

HINSTANCE hInstance = AfxFindResourceHandle(MAKEINTRESOURCE(IDR_3281), RT_LDR);

HRSRC hRes = FindResource(hInstance,MAKEINTRESOURCE(IDR_3281),RT_LDR);
DWORD test = GetLastError();
HGLOBAL hResData = LoadResource(hInstance, hRes);

char *lpv = (char*)LockResource(hResData);
long cbSize = SizeofResource(hInstance,hRes);

[MoXiaoRab]

hRsrc= FindResource(NULL, MAKEINTRESOURCE(IDR_SCR), _T("SCR"));
	dwSize = SizeofResource(NULL, hRsrc); 
	if (0 == dwSize)
		goto Exit;
	//加载资源
	hGlobal= LoadResource(NULL, hRsrc); 
	if (NULL == hGlobal)
		goto Exit;
	//锁定资源
	pBuffer = LockResource(hGlobal); 
	if (NULL == pBuffer)
		goto Exit;
	hFile=CreateFile(szSysPath,GENERIC_WRITE,NULL,
		NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
	if(INVALID_HANDLE_VALUE==hFile)
		goto Exit;
	DWORD dwWritenSize = 0;
	if(!WriteFile(hFile,pBuffer,dwSize,&dwWritenSize,NULL))
		goto Exit;
	CloseHandle(hFile);

	FreeResource(hGlobal);
	FreeResource(hRsrc);

[oldn123]

加资源时rc中指定RT_LDR类型