Echelon LNS Plug-in Manual do Utilizador descarregar pdf (Página 28)

Field Description

ObjectName The fully specified name of the LNS object on which to

perform the command, as specified by the director.

LcaObject A reference to the LNS object on which to perform the

command, as decoded by the LNS Plug-in Framework (or null

if unable to decode).

Note: The Actions array will contain only one item unless the plug-in MultiObject feature is

specified as Supported. You can also obtain a reference to the LNS Object Server through the

framework’s LcaClass.Instance method, or to the currently open Network and System objects

through the LcaClass.Network and LcaClass.System properties, respectively.

The following code demonstrates how your plug-in form class should appear (note that MyPlugin

represents the name of your plug-in):

using System;

using System.Windows.Forms;

using System.Runtime.InteropServices;

using Echelon.LNS.Plugin;

using Echelon.LNS.Interop;

namespace YourCompany.DevicePlugin

{

public partial class MyPluginForm : PluginFormBase

{

public MyPluginForm()

{

InitializeComponent();

}

protected override void ActivatePlugin()

{

// carry out each queued command action

foreach (PluginAction action in Plugin.Actions)

{

// extract information from command action

EnumCommandIds commandId = action.CommandId;

EnumClassIds classId = action.ComponentClassId;

string objectName = action.ObjectName;

object lcaObject = action.LcaObject;

// perform the command action

switch (commandId)

{

case EnumCommandIds.Test:

// TODO: add command handler here

break;

// TODO: add other command handlers here

}

Note: Typically, a device plug-in is launched from the director, and it then allows the user to select

various device configuration options from a user interface that is customized to the device

functionality. After creating your basic PluginForm class, you can add most of your plug-in

functionality to this user interface class, adding controls using Visual Studio’s Form Designer and

updating your controls from your command handlers.

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