Dragdrop, Dragover, Gotfocus – Echelon OpenLNS User Manual

Page 729: Lostfocus, Onattachmentevent, Onattachment

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OpenLNS Programmer's Reference

692

DragDrop

Summary

A standard ActiveX control event used for visual controls.

This event is not applicable for the Object Server

.

DragOver

Summary

A standard ActiveX control event used for visual controls.

This event is not applicable for the Object Server

.

GotFocus

Summary

A standard ActiveX control event used for visual controls.

This event is not applicable for the Object Server

.

LostFocus

Summary

A standard ActiveX control event used for visual controls.

This event is not applicable for the Object Server

.

OnAttachmentEvent

Summary

Indicates that the attachment status has changed for an

AppDevice

or

Router.

This event is generated whenever a device or router is

attached to the network. Once an AppDevice or Router has

been attached, it is monitored via periodic pinging to ensure

that it remains attached. If the ping fails, indicating that the

device or router is no longer attached, this event will be

generated to indicate this.
Note: OpenLNS will check to make sure that the ping failure

is due to a failure on the device or router being pinged, and

not because of a failure on another router on the

communications path between the OpenLNS Object Server

and the router or device in question. The rate at which a

device or router is pinged is determined by its PingClass

property.
This event is fired when changes are made to the physical

network. The OnChangeEvent is fired when those changes

are made to the OpenLNS database. You can subscribe or

unsubscribe your application to these events using the

System

object’s BeginAttachmentEvent and

EndAttachmentEvent methods.
For more information on the OnAttachment event, see the

Testing Devices and Detecting Device Failures section in the

OpenLNS Programmer’s Guide.

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