C# グローバルフックでメッセージを編集して送り返す。

public void Install()

{

	// Create an instance of HookProc.

    MouseHookProcedure = new HookProc(MouseHookProc);

    //install hook

    hMouseHook = SetWindowsHookEx(

        WH_MOUSE_LL,

        MouseHookProcedure,

        Marshal.GetHINSTANCE(

            Assembly.GetExecutingAssembly().GetModules()[0]),

        0);

    //If SetWindowsHookEx fails.

    if (hMouseHook == 0)

    {

        //Returns the error code returned by the last unmanaged function called using platform invoke that has the DllImportAttribute.SetLastError flag set. 

        int errorCode = Marshal.GetLastWin32Error();

        //do cleanup

        Uninstall(false);

        //Initializes and throws a new instance of the Win32Exception class with the specified error. 

        throw new Win32Exception(errorCode);

    }

}



// void MouseHookProcの中

if(messageDisable)

{           

	PostMessage(IntPtr.Zero,0,wParam,lParam);

    //call next hook

	CallNextHookEx(hMouseHook, nCode, wParam, lParam);

    return 0;

}

else

{

	

	return CallNextHookEx(hMouseHook, nCode, wParam, lParam);

}