apptest.cpp

来自「驱动编程菜鸟入门——3」· C++ 代码 · 共 36 行

// AppTest.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <windows.h>
#include <conio.h>

int main()
{
	HANDLE hDevice = 
		CreateFile("\\\\.\\TestDevice",
					GENERIC_READ | GENERIC_WRITE,
					0,		// share mode none
					NULL,	// no security
					OPEN_EXISTING,
					FILE_ATTRIBUTE_NORMAL,
					NULL );		// no template

	if (hDevice == INVALID_HANDLE_VALUE)
	{
		printf("设备打开失败！\n");
		return 1;
	}

	printf("设备打开成功！\n");

	printf("Press any key to continue....\n");
	getch();

    printf("关闭设备！\n");
	CloseHandle(hDevice);

	return 0;
}