Interface

ActionSource

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Description

The ActionSource interface is implemented by Timer, DesktopBevelButton and DesktopButton. An ActionSource object calls the PerformAction method of each ActionNotificationReceiver registered with it.

Methods

Name	Parameters	Returns	Shared
AddActionNotificationReceiver	receiver As ActionNotificationReceiver
RemoveActionNotificationReceiver	receiver As ActionNotificationReceiver

Method descriptions

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ActionSource.AddActionNotificationReceiver

AddActionNotificationReceiver(receiver As ActionNotificationReceiver)

Registers an ActionNotificationReceiver.

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ActionSource.RemoveActionNotificationReceiver

RemoveActionNotificationReceiver(receiver As ActionNotificationReceiver)

Unregisters an ActionNotificationReceiver.

Notes

If you implement this interface in your application, you must implement the methods with the parameters as shown here.

Sample code

If you want to have a Button call PerformAction on an ActionNotificationReceiver then you would create a new class (perhaps ActionNotificationTest) that implements ActionNotificationReceiver. In the PerformAction method, you add the code you want to run when the button is pressed (and before DesktopButton.Pressed event is called). For example:

MessageBox("PerformAction called.")

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Now in the Opening event handler for a DesktopButton, you can add your receiver:

Var action As New ActionNotificationTest
Me.AddActionNotificationReceiver(action)

Compatibility

Project Types	Console, Desktop, Web
Operating Systems	All