OnBeforeObjectChanged Method

Raises the Leadtools.Annotations.AnnAutomation.BeforeObjectChanged event.

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

protected virtual void OnBeforeObjectChanged( 
   AnnBeforeObjectChangedEventArgs e
)

'Declaration
 
Protected Overridable Sub OnBeforeObjectChanged( _
   ByVal e As AnnBeforeObjectChangedEventArgs _
)

'Usage
 
Dim instance As AnnAutomation
Dim e As AnnBeforeObjectChangedEventArgs
 
instance.OnBeforeObjectChanged(e)

protected virtual void OnBeforeObjectChanged( 
   AnnBeforeObjectChangedEventArgs e
)

 function Leadtools.Annotations.AnnAutomation.OnBeforeObjectChanged( 
   e 
)

protected:
virtual void OnBeforeObjectChanged( 
   AnnBeforeObjectChangedEventArgs^ e
)

Parameters

e: An AnnBeforeObjectChangedEventArgs that contains the event data.

Remarks

Raising an event invokes the event handler through a delegate. The OnBeforeObjectChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class. Notes to Inheritors: When overriding OnBeforeObjectChanged in a derived class, be sure to call the base class's OnBeforeObjectChanged method so that registered delegates receive the event.

Example

For an example, refer to BeforeObjectChanged.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

AnnAutomation Class
AnnAutomation Members