Introduction

This article is one of a series of articles aimed at providing further orientation with the migrated code for Magic programmers. This time we will look at Handlers as they appear in eDeveloper (version 9) and show the equivalent representation of each setting in the migrated code.

Defining an Event

The following displays eDeveloper's ctrl-K or Handlers screen:

Name in Migrated Code: Handlers.Add and the Handlers region of code
Location in Migrated Code: Constructor in the Event Handlers section (directly after the constructor
Example: In the constructor

   var PrintHandler = Handlers.Add(Print);
   PrintHandler.Invokes += PrintHandler_Invokes; 

Example: In the Handler Section:

  void PrintHandler_Invokes(Firefly.Box.Advanced.HandlerInvokeEventArgs e)
  {
     e.Handled = true;
     // send range of this order
     v_Printed.Value = new Print_Order().Run(Orders.OrderID, new UI.ShowOrders_UI(this));
  } 

The following sections describe the migrated code equivalent for all the event options.

Description

Name in Migrated Code: In the name of the parameter of the Handlers.Add method.
Location in Migrated Code: Constructor
Example: In the constructor

   var PrintHandler = Handlers.Add(Print);
   PrintHandler.Invokes += PrintHandler_Invokes; 

Trigger Type

There are many ways in which a Handler can be triggered and the follwoing sub sections show the equivalent migrated code for each Trigger option.

System

Name in Migrated Code: Keys
Location in Migrated Code: Constructor
This defines a handler triggered by a keyboard shortcut.
Example:

var h = Handlers.Add(Keys.Shift | Keys.F3); 

####Internal

Name in Migrated Code: Command
Location in Migrated Code: Constructor
This defines a handler triggered by an internal event command Example:

var Expand_vMyField_CopyFromHandler = Handlers.Add(Command.Expand, "Copy From"); 

Timer

Expression

None

Trigger

Force Exit

Defining a Handler

The following displays some Handlers as seen in eDeveloper:

• Events

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