VB.NET
Dim Ret, IfcTime As Integer
IfcTime = 1 ' Ifc active time (X 100uSec)
Ret = GpIfc(IfcTime)
C
DWORD Ret, IfcTime;
IfcTime = 1; /* Ifc active time (X 100uSec) */
Ret = GpIfc(IfcTime);
C#
uint Ret, IfcTime;
IfcTime = 1; /* Ifc active time (X 100uSec) */
Ret = gpib.Ifc(IfcTime);
Python
IfcTime, Ret = ctypes.c_ulong(), ctypes.c_ulong()
IfcTime.value = 1 # Ifc active time (X 100uSec)
Ret.value = GpibPy.GpIfc(IfcTime)