IOCTL_FARC_GET_SWVERSION
Description:
query the software version of the driver.
Parameters:
Parameter |
Type |
Description |
Input |
- |
- |
- |
Output |
packet availability |
UCHAR[26] |
Driver version as "C"-string
|
Possible errors (see also Error codes):
E_FARC_INVALID_HANDLE
E_FARC_BUFFER_TOO_SMALL
Example:
Note, that the following example is only a fragment. It is recommended,
that the driver is opened in asynchronous mode and a handle to the driver is available.
OVERLAPPED overlapped;
BOOL ret;
DWORD read, err;
char outbuf[26];
overlapped.Offset = 0;
overlapped.OffsetHigh = 0;
overlapped.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);
...
ret = DeviceIoControl(drvhandle,
IOCTL_FARC_GET_CARDID,
NULL, 0,
outbuf, 26,
&read, &overlapped);
if (!ret)
{
err = GetLastError();
if (err == E_FARC_PENDING)
{
ret = GetOverlappedResult(drvhandle, &overlapped, &read, TRUE);
if (!ret)
{
err = GetLastError();
// do errorhandling here
}
}
else
{
// other error occured, perhaps wrong handle
}
}
printf("SW-Version: %s",outbuf);
...
See also:
DeviceIoControl()
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