winio.cpp

来自「VC++写的驱动级的WINIO.DLL的源代码 (内附WIN2000的C语言写」· C++ 代码 · 共 63 行

// ------------------------------------------------- //
//                   WinIo v1.2                      //
//  Direct Hardware Access Under Windows 9x/NT/2000  //
//        Copyright 1998-2000 Yariv Kaplan           //
//           http://www.internals.com                //
// ------------------------------------------------- //

#include <windows.h>
#include "instdrv.h"

HANDLE hDriver;
bool IsNT;
bool IsWinIoInitialized = false;

bool IsWinNT()
{
  OSVERSIONINFO OSVersionInfo;

  OSVersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

  GetVersionEx(&OSVersionInfo);

  return OSVersionInfo.dwPlatformId == VER_PLATFORM_WIN32_NT;
}

bool _stdcall InitializeWinIo()
{
  char szExePath[MAX_PATH];
  PSTR pszSlash;

  IsNT = IsWinNT();

  if (IsNT)
  {
    if (!GetModuleFileName(GetModuleHandle(NULL), szExePath, sizeof(szExePath)))
      return false;

    pszSlash = strrchr(szExePath, '\\');

    if (pszSlash)
      pszSlash[1] = 0;
    else
      return false;

    strcat(szExePath, "winio.sys");

    UnloadDeviceDriver("WINIO");

    if (!LoadDeviceDriver("WINIO", szExePath, &hDriver))
      return false;
  }
  
  IsWinIoInitialized = true;

  return true;
}

void _stdcall ShutdownWinIo()
{
  if (IsNT)
    UnloadDeviceDriver("WINIO");
}