test.cpp

来自「Programming the Microsoft Windows driver」· C++ 代码 · 共 43 行

// test.cpp : Defines the entry point for the console application.
// Copyright (C) 1999 by Walter Oney
// All rights reserved

#include "stdafx.h"
#include <winioctl.h>
#include "..\sys\ioctls.h"

int main(int argc, char* argv[])
	{
	HANDLE hdevice = CreateFile("\\\\.\\IOCTL", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
	if (hdevice == INVALID_HANDLE_VALUE)
		{
		printf("Unable to open IOCTL device - error %d\n", GetLastError());
		return 1;
		}

	DWORD junk;
	volatile DWORD version;

	version = 0;
	if (DeviceIoControl(hdevice, IOCTL_GET_VERSION_BUFFERED, NULL, 0, (PVOID) &version, sizeof(version), &junk, NULL))
		printf("Using IOCTL.SYS version %d.%2.2d\n", HIWORD(version), LOWORD(version));
	else
		printf("Error %d in IOCTL_GET_VERSION_BUFFERED\n", GetLastError());

	version = 0;
	if (DeviceIoControl(hdevice, IOCTL_GET_VERSION_DIRECT, NULL, 0, (PVOID) &version, sizeof(version), &junk, NULL))
		printf("Using IOCTL.SYS version %d.%2.2d\n", HIWORD(version), LOWORD(version));
	else
		printf("Error %d in IOCTL_GET_VERSION_DIRECT\n", GetLastError());

	version = 0;
	if (DeviceIoControl(hdevice, IOCTL_GET_VERSION_NEITHER, NULL, 0, (PVOID) &version, sizeof(version), &junk, NULL))
		printf("Using IOCTL.SYS version %d.%2.2d\n", HIWORD(version), LOWORD(version));
	else
		printf("Error %d in IOCTL_GET_VERSION_NEITHER\n", GetLastError());

	CloseHandle(hdevice);
	return 0;
	}