GpExppoll

$image\head10.gif$ Operation Executes parallel poll.

$image\head10.gif$ Format

(VB.NET)

Dim Pprdata, Ret As Integer

Ret = GpExppoll(Pprdata)

(C)

DWORD Pprdata, Ret;

Ret = GpExppoll(&Pprdata);

(C#)

uint Pprdata, Ret;

Ret = gpib.Exppoll(out Pprdata);

(Python)

Pprdata, Ret = ctypes.c_ulong(), ctypes.c_ulong()

Ret.value = GpibPy.GpExppoll(ctypes.byref(Pprdata))

$image\head10.gif$ Mode Master mode only

$image\head10.gif$ Parameters Pprdata : Status after PPR (return value)

Ret : Return value

0 : Normal completion

80 : GpIni() hasn't execute

140 : Asynchronous function is executing now

240 : ESC key pressed

252 : GP-IB error

254 : Timeout

255 : Parameter error

(See "Return Values" for details.)

$image\head10.gif$ Notes Value of Pprdata corresponds with DIO Lines as follows

Pprdata = 0x01(00000001) : DIO1

0x02(00000010) : DIO2

0x04(00000100) : DIO3

0x08(00001000) : DIO4

0x10(00010000) : DIO5

0x20(00100000) : DIO6

0x40(01000000) : DIO7

0x80(10000000) : DIO8