Echelon OpenLDV - Manual (Page 57)

OpenLDV Programmer’s Guide 49
Return Code
Numeric
Value Description
LDVX_INVALID_XDRIVER 17 This code is returned if you
attempt to open an xDriver
L ON W ORKS interface device
with the ldv_open() function,
and the xDriver lookup
extension component fails to
find that network interface.
For devices that use the
default profile, use the
L ON W ORKS Interfaces
application in the Windows
Control Panel to verify that
the network interface
referenced by the id
parameter exists. For
information about lookup
extension components, see
Appendix C, Custom Lookup
Extension Component
Programming, on page 161.
LDVX_DEBUG_FAILED 18 This return code is reserved.
LDVX_ACCESS_DENIED 19 This code is returned if you
call ldv_open() to initialize a
L ON W ORKS interface device
that is already opened by
another process on your
computer. OpenLDV does not
support concurrent access to
network interfaces between
multiple processes on the
same computer. For more
information on this, see Using
Multiple Threads or Multiple
Processes on page 14.
LDV_CAPABLE_DEVICE_NOT_FOUND 20 No OpenLDV L
ON
W
ORKS
interface device was found for
the
ldv_get_matching_devices()
or ldv_open_cap() function.
LDV_NO_MORE_CAPABLE_DEVICES 21 No additional OpenLDV
devices were found for the
ldv_get_matching_devices()
function.