Notification property
Fast notification interface to use instead of events.
Syntax
object.Messages [= Notifications]
The Notification(object,Notifications) syntax has these parts:
Remarks
NOTE: This property exists only in COM object (wodAppUp.DLL) version of wodAppUp.
Notification property holds reference to Notifications interface that can be implemented by your application. When this property is set, and contains such a reference, wodAppUpdate will call your method implementations instead of firing events. More information on how this works can be found here.
For example, instead of having this in your code (VB example):
Private Sub Update1_CheckDone(ByVal ErrorCode As Long, ByVal ErrorText As String)
End Sub
you will have this:
Private Sub Notifications_CheckDone(ByVal Owner As wodAppUpdateCOMLib.IwodAppUpdateCom, ByVal ErrorCode As Long, ByVal ErrorText As String)
End Sub
pretty much the same - except notification method has one more argument - Owner, which holds reference to wodAppUpdate instance that called this method.
In VB, to implement Notifications interface, you need code like this:
- at the top of the code, in
section, put this:
Dim Update As wodAppUpdateCom
Implements Notifications
- in Form_Load (or where you initialize new instance of wodAppUpdate) do this:
Set Update = New wodAppUpdateCom
Set Update.Notification = Me
Update.Check ...
You can notice that when we declared Update, we did not use WithEvents keyword - it is not needed anymore, because events will not be fired anymore. Notification methods we implement will be called instead!Platforms
Windows
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