Cancel Method (AnnAutomation)

C#
Visual Basic
Objective-C
Java
C++

public virtual void Cancel()

'Declaration
 
Public Overridable Sub Cancel()

'Usage
 
Dim instance As AnnAutomation
 
instance.Cancel()

public:
virtual void Cancel();

Cancels any operations currently being performed in this AnnAutomation. An operation can be:

(Design user mode) An AnnDrawDesigner is drawing a new object
(Design user mode) An AnnEditDesigner is editing an existing object
(Design user mode) The user is selecting a group of objects
(Run user mode) An AnnRunDesigner is running an object

This example cancels the drawing of new objects when the mouse is over a certain area on the viewer.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools.Windows.Controls
Imports Leadtools.Windows.Annotations

Private Sub AnnAutomation_Cancel()
   ' subclass to the viewer mouse move event
   ' _automation is an AnnAutomation object
   AddHandler _automation.Container.MouseMove, AddressOf Container_MouseMove
End Sub
Private Sub Container_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)
   ' check if we have a draw designer currently selected
   If Not _automation.CurrentDesigner Is Nothing AndAlso TypeOf _automation.CurrentDesigner Is AnnDrawDesigner Then
      ' check if we are over the rectangle 100,100 to 200,200
      Dim rc As Rect = New Rect(100, 100, 100, 100)
      If rc.Contains(e.GetPosition(_automation.Container)) Then
         _automation.Cancel()
      End If
   End If
End Sub

using Leadtools.Windows.Controls;
using Leadtools.Windows.Annotations;
using Leadtools.Demos;
using Leadtools.Help;

private void AnnAutomation_Cancel()
{
   // subclass to the viewer mouse move event
   // _automation is an AnnAutomation object
   _automation.Container.MouseMove += new MouseEventHandler(Container_MouseMove);
}
private void Container_MouseMove(object sender, MouseEventArgs e)
{
   // check if we have a draw designer currently selected
   if(_automation.CurrentDesigner != null && _automation.CurrentDesigner is AnnDrawDesigner)
   {
      // check if we are over the rectangle 100,100 to 200,200
      Rect rc = new Rect(100, 100, 100, 100);
      if(rc.Contains(e.GetPosition(_automation.Container)))
         _automation.Cancel();
   }
}

using Leadtools.Windows.Controls;
using Leadtools.Windows.Annotations;
using Leadtools.Examples;
using Leadtools.Silverlight.Demos;

private void AnnAutomation_Cancel()
{
   // subclass to the viewer mouse move event
   // _automation is an AnnAutomation object
   _automation.Container.MouseMove += new MouseEventHandler(Container_MouseMove);
}
private void Container_MouseMove(object sender, MouseEventArgs e)
{
   // check if we have a draw designer currently selected
   if(_automation.CurrentDesigner != null && _automation.CurrentDesigner is AnnDrawDesigner)
   {
      // check if we are over the rectangle 100,100 to 200,200
      Rect rc = new Rect(100, 100, 100, 100);
      if(rc.Contains(e.GetPosition(_automation.Container)))
         _automation.Cancel();
   }
}

Imports Leadtools.Windows.Controls
Imports Leadtools.Windows.Annotations
Imports Leadtools.Silverlight.Demos

Private Sub AnnAutomation_Cancel()
   ' subclass to the viewer mouse move event
   ' _automation is an AnnAutomation object
   AddHandler _automation.Container.MouseMove, AddressOf Container_MouseMove
End Sub
Private Sub Container_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs)
   ' check if we have a draw designer currently selected
   If Not _automation.CurrentDesigner Is Nothing AndAlso TypeOf _automation.CurrentDesigner Is AnnDrawDesigner Then
      ' check if we are over the rectangle 100,100 to 200,200
      Dim rc As Rect = New Rect(100, 100, 100, 100)
      If rc.Contains(e.GetPosition(_automation.Container)) Then
         _automation.Cancel()
      End If
   End If
End Sub

Target Platforms

Reference

AnnAutomation Class
AnnAutomation Members