VC集成dll到资源中(也可是其他文件)

g_MakeResourceFromExe用于释放资源DLL与SYS中ID为IDR_DLL1的WinIo32.dll
和ID为IDR_SYS1的WinIo32.sys.ReleaseExe用于将文件属性置为只读,隐藏,归档
主要代码如下:

bool CtestDlg::g_MakeResourceFromExe(CString szExPathName, CString szResName, int nResID)
{
	HRSRC hSrc = FindResource(NULL,MAKEINTRESOURCE(nResID),szResName);
	if(hSrc == NULL) return false;
	HGLOBAL hGlobal = LoadResource(NULL,hSrc);
	if(hGlobal == NULL) return false;
	LPVOID lp = LockResource(hGlobal);
	DWORD dwSize = SizeofResource(NULL,hSrc);
	CFile file;
	if(file.Open(szExPathName,CFile::modeCreate|CFile::modeWrite))
	{
		file.Write(lp,dwSize);
		file.Close();
	}
	FreeResource(hGlobal);
	return true;
}

void CtestDlg::ReleaseDLL()
{//从资源DLL中自释放WinIo32.dll自定义资源类型,ID=IDR_DLL1
	CString rc_dll = _T("WinIo32.dll");
	CString rc_sys = _T("WinIo32.sys");
	CFileFind find;
	if(!find.FindFile(rc_dll))
	{
		g_MakeResourceFromExe(rc_dll,_T("DLL"),IDR_DLL1);
		//改变WinIo32.dll的属性:只读,隐藏,归档
		DWORD dwAttributes = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_ARCHIVE | FILE_ATTRIBUTE_READONLY;
		SetFileAttributes(rc_dll,dwAttributes);  
	}

	if(!find.FindFile(rc_sys))
	{
		g_MakeResourceFromExe(rc_sys,_T("SYS"),IDR_SYS1);
		//改变WinIo32.dll的属性:只读,隐藏,归档
		DWORD dwAttributes = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_ARCHIVE | FILE_ATTRIBUTE_READONLY;
		SetFileAttributes(rc_sys,dwAttributes);  
	}
	find.Close();
}

代码中再动态加载WinIo32.dll.并且找到dll中的方法进行调用.主要方法如下:

typedef int (_stdcall *InitializeWinIoFun)();
InitializeWinIoFun InitializeWinIo = 0;

typedef int (_stdcall *GetPortValFun)(WORD wPortAddr, PDWORD pdwPortVal, BYTE bSize);
//typedef int (__cdecl *MYPROC)(short int* , short int* , short );  
GetPortValFun GetPortVal = 0;

typedef int (_stdcall *ShutdownWinIoFun)();
ShutdownWinIoFun ShutdownWinIo = 0;

HMODULE hDllInst = ::LoadLibrary(_T("WinIo32.dll"));

if (hDllInst)
	{
		InitializeWinIo = (InitializeWinIoFun)GetProcAddress(hDllInst, "InitializeWinIo");
		GetPortVal = (GetPortValFun)GetProcAddress(hDllInst, "GetPortVal");
		ShutdownWinIo = (ShutdownWinIoFun)GetProcAddress(hDllInst, "ShutdownWinIo");
	}
 
	int   bResult   =   InitializeWinIo();