GetNumberOfInterfaces

The GetNumberOfInterfaces functions retrieves the number of interfaces on the local computer.

DWORD GetNumberOfInterfaces(
  PDWORD pdwNumIf    // pointer to number of interfaces
);

Parameters

pdwNumIf

Pointer to a DWORD variable that, on successful return, contains the number of interfaces on the local computer.

Return Values

If the function succeeds, the return value is NO_ERROR.

If the function fails, use FormatMessage to obtain the message string for the returned error.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 SP4 or later.
  Windows 95/98: Requires Windows 98.
  Header: Declared in Iphlpapi.h.
  Library: Use Iphlpapi.lib.

See Also

GetIfEntry