Setup Example

VB.NET

Dim Ret, Srlen, Cmd(31) As Integer

Dim Srbuf As New String("", 256)  /* Receive buffer */

Cmd(0) = 2  ' Number of talkers and listeners (in master mode)

Cmd(1) = 3  ' Talker address

Cmd(2) = 1  ' Listener address

Srlen = 256  ' Maximum data length in bytes that can be received

Ret = GpListenEx(Cmd, Srlen, Srbuf)

C

DWORD Ret, Cmd[31], Srlen;

char Srbuf[256]; /* Receive buffer */

Cmd[0] = 2; /* Number of talkers and listeners (in master mode)*/

Cmd[1] = 3; /* Talker address */

Cmd[2] = 1; /* Listener address */

Srlen = 256; /* Maximum data length in bytes that can be received */

Ret = GpListenEx(Cmd, &Srlen, Srbuf);

C#

uint Ret, Srlen;

uint[] Cmd = new uint[31];

StringBuilder Srbuf = new StringBuilder(256);  /* Receive buffer */

Cmd[0] = 2; /* Number of talkers and listeners (in master mode)*/

Cmd[1] = 3; /* Talker address */

Cmd[2] = 1; /* Listener address */

Srlen = 256; /* Maximum data length in bytes that can be received */

Ret = gpib.ListenEx(Cmd, out Srlen, Srbuf);

Python

Ret, Srlen, Cmd = ctypes.c_ulong(), ctypes.c_ulong(), (ctypes.c_ulong * 31)()

Srbuf = (ctypes.c_ubyte * 256)() # Receive buffer

Cmd[0] = 2 # Number of talkers and listeners (in master mode)

Cmd[1] = 3 # Talker address

Cmd[2] = 1 # Listener address

Srlen.value = 256 # Maximum data length in bytes that can be received

Ret.value = GpibPy.GpListenEx(Cmd, ctypes.byref(Srlen), Srbuf)