Advantech PCI-1682U Manual de usuario descargar pdf (Pagina 47)

41 PCI-1680U/1682U User Manual

Chapter 4 Software Requirements

4.3.6 SetCommMask

Users can use this interface to set event for CAN port.

Users have to call WaitCommEvent function to wait event.

Users can call GetCommMask to get the current event set before.

If users do not set any of the supported event types, the real event type will be zero.

In this case, if WaitCommEvent is called, the call will be returned and the event type

returned will be zero.

Syntax

BOOL SetCommMask(

HANDLE hDevice,

DWORD dwEvtMask

);

Parameters

Return Value

Successful: return non-zero values. Unsuccessful: return zero value. Please call Get-

LastError function.

Example

BOOL bSuccess = SetCommMask(hDevice, EV_ERR | EV_RXCHAR);

See Also

WaitCommEvent

GetCommMask

Note! Events supported at present are only:

Type Direction

EV_ERR Error

EV_RXCHAR Receive one frame data

Name Direction Description

hDevice Input Handle of the device which was opened.

dwEvtMask Input Event type.

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Advantech PCI-1682U Manual de usuario Pagina 47