用CreateFile函数怎么启动驱动?
在exe程序中
#define MY_DEVICE_NAME ".\\HelloWorld"
HANDLE hDevice=NULL; //设备句柄
//获得设备句柄
hDevice=CreateFile(MY_DEVICE_NAME,GENERIC_READ | GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
if (hDevice==INVALID_HANDLE_VALUE)
{
printf("INVALID_HANDLE_VALUE");
#ifdef DEBUGMSG
printf("CreateFile() GetLastError reports %d\n",erron);
#endif
return FALSE;
}
他总是失败,每次都执行这个printf("INVALID_HANDLE_VALUE");
我换成#define MY_DEVICE_NAME "\\\\.\\HelloWorld" 也不行,大家给我说说\\\\.\\这些该怎么设定吧.
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