GpDevFindEx

Boards that Support the Function

Operation             Search out devices that can receive data. And can be specified by primary address and secondary address.

Format                

(VB.NET)

Dim Ret As Integer

Dim Pad, Sad, Lstn As Short

Ret = GpDevFindEx(Pad, Sad, Lstn)

(C)

DWORD Ret;

short Pad, Sad, Lstn;

Ret = GpDevFindEx(Pad, Sad, &Lstn);

(C#)

uint Ret;

short Pad, Sad, Lstn;

Ret = gpib.DevFindEx(Pad, Sad, out Lstn);

(Python)

Ret = ctypes.c_ulong()

Pad, Sad, Lstn ctypes.c_short(), ctypes.c_short(), ctypes.c_short()

Ret.value = GpibPy.GpDevFindEx(Pad, Sad, ctypes.byref(Lstn))

Mode                   Master mode only

Parameters          Pad        : Primary Address (0-30)

Sad        : Secondary Address (0, 96-126, -1)

0          : Secondary Address is not used.

96-126 : Specified Secondary Address is used.

1          : All Secondary Address is used.

Lstn       : (OUT) Whether a device exists.

0                : Not exists

Except for 0 : Exists

Ret         : Return value

0       : Normal completion

80     : GpIni() hasn't execute

140   : Asynchronous function is executing now

255   :  Illegal call

(See "Return Values" for details.)

Notes                    There is the following difference in comparison with GpDevFind().

• It can be executed by all supported boards.

• Specified primary and secondary address is used.