Usb_tc08_open_unit_async – Omega Speaker Systems 8 Channel Thermocouple USB Data Acquisition Module TC-08 User Manual
Page 22
TC-08 User's Guide
18
3.3.2.2
usb_tc08_open_unit_async
short usb_tc08_open_unit_async (void)
This routine begins enumerating USB TC-08 units in the background and provides a
return immediately, so the calling thread can continue executing other code.
Note: The driver is thread safe and will not allow access to a single unit from more
than one application. If, therefore,
usb_tc08_open_unit_async
does not find a
unit, check that other applications are not using the same USB TC-08. This includes
applications on other user accounts on the same computer, where fast user switching
is supported.
Arguments
None
Returns
1
The call was successful.
0
No more units were found.
-1
An error occurred, call
handle of 0 to obtain the error code.