GpSrqEvent

$image\BLTLRGSQ.gif$ Boards that Support the Function $image\SETUP.gif$ $image\SANBTN.gif$

$image\head10.gif$ Operation Create event message by receiving SRQ. GpSrqEventEx added. Use that function.

$image\head10.gif$ Format

(VB.NET)

Dim hWnd As Integer

Dim wMsg As Short

Dim SrqOn, Ret As Integer

Ret = GpSrqEvent(hWnd, wMsg, SrqOn)

(C)

HANDLE hWnd;

WORD wMsg;

DWORD SrqOn, Ret;

Ret = GpSrqEvent(hWnd, wMsg, SrqOn);

(C#)

int hWnd;

ushort wMsg;

uint SrqOn, Ret;

Ret = gpib.SrqEvent(hWnd, wMsg, SrqOn);

(Python)

hWnd = ctypes.wintypes.HANDLE()

wMsg = ctypes.c_short()

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

Ret.value = GpibPy.GpSrqEvent(hWnd, wMsg, SrqOn)

$image\head10.gif$ Mode Master mode

$image\head10.gif$ Parameters hWnd : Specify the handle of the receiver of the conversion complete event message

wMsg : Specify the message ID number for the conversion complete event message (user-specified message ID number)

Range : 400H to 7FFFH

SrqOn : Specify create event or not

0 : Not create event

1 : Create event

Ret : Return value

0 : Normal completion

80 : GpIni() hasn't execute

140 : Asynchronous function is executing now

200 : Thread creation error

255 : Parameter error

(See "Return Values" for details.)

$image\head10.gif$ Notes 1) This function create event message by receiving SRQ. It is effective until re-execute GpSrqEvent by SrqOn = 0 or execute GpExit. It is necessary to clear slave side's SRQ (GpPoll, GpListen and so on), to receive the next event message.

2) Another API-TOOL also use event message ID, which are specified as follows:

SIO : 410H to 42FH

GPIB : 430H to 44FH

AIO : 450H to 46FH

DIO : 470H to 48FH

SMC : 490H to 4AFH

CNT : 4B0H to 4CFH

When using GP-IB, the following are recommended: 430H to 44FH.

3) Refer to the Multimeter example.