CreateFile GetLastError 返回5如何解决?
int ReadSector( int drive , int SectorNo , PBYTE pbRBuf , int SectorNumber )
{
HANDLE hDevice;
TCHAR szDevicename[64];
DISK_GEOMETRY Geometry;
BOOL bRet;
DWORD bytes,bread,count;
wsprintf(szDevicename,_T("\\\\.\\PHYSICALDRIVE%c"), '0'+drive );
OutputDebugString(szDevicename);
hDevice = CreateFile( szDevicename,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL
);
if (hDevice == INVALID_HANDLE_VALUE)
{
MessageBox(NULL,_T("Open Device Error!"),NULL,MB_OK);
return 0;
}
DeviceIoControl(hDevice,FSCTL_LOCK_VOLUME, NULL,0,NULL,0,&count,NULL);
DeviceIoControl(hDevice,IOCTL_DISK_GET_DRIVE_GEOMETRY,NULL,0,&Geometry,sizeof(DISK_GEOMETRY),&count,(LPOVERLAPPED)NULL);
bytes = 512*SectorNumber ;
DWORD dwPos = SetFilePointer(hDevice, SectorNo * 512 , NULL, FILE_BEGIN );
bRet = ReadFile(hDevice, pbRBuf , bytes, &bread, NULL);
if (bRet == FALSE || bread < 512)
{
MessageBox(NULL,_T("Read device error!"),NULL,MB_OK);
return 0;
}
DeviceIoControl(hDevice,FSCTL_UNLOCK_VOLUME, NULL,0,NULL,0,&count,NULL);
CloseHandle(hDevice);
//MessageBox(NULL,_T("读MBR OK"),NULL,MB_OK);
return 1 ;
}
我的机子上CreateFile的时候正常,在客户机器上却INVALID_HANDLE_VALUE,弹出对话框.是权限不够吗?
[解决办法]
把你的环境和客户机的环境说清楚！
不然让别人来猜？
