←Select platform

Cancel Method

Summary

Cancels the operation currently being performed in this AnnAutomation

Syntax

C++

public virtual void Cancel()

  
Public Overridable Sub Cancel()

public: 
virtual void Cancel();

Remarks

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

Example

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

using Leadtools; 
using Leadtools.Annotations; 
using Leadtools.WinForms; 
using Leadtools.Drawing; 
 
public void AnnAutomation_Cancel() 
{ 
   // subclass to the viewer mouse move event 
   // _automation is an AnnAutomation object 
   _automation.Viewer.MouseMove += new MouseEventHandler(viewer_MouseMove); 
} 
 
private void viewer_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 
      Rectangle rc = new Rectangle(100, 100, 100, 100); 
      if (rc.Contains(e.X, e.Y)) 
         _automation.Cancel(); 
   } 
}

Imports Leadtools 
Imports Leadtools.Annotations 
Imports Leadtools.WinForms 
Imports Leadtools.Drawing 
 
Public Sub AnnAutomation_Cancel() 
   ' subclass to the viewer mouse move event 
   ' _automation is an AnnAutomation object 
   AddHandler _automation.Viewer.MouseMove, AddressOf viewer_MouseMove 
End Sub 
 
Private Sub viewer_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 Rectangle = New Rectangle(100, 100, 100, 100) 
      If rc.Contains(e.X, e.Y) Then 
         _automation.Cancel() 
      End If 
   End If 
End Sub

Requirements

Target Platforms

Reference

AnnAutomation Class

AnnAutomation Members

Help Version 19.0.2017.10.27

Leadtools.Annotations Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations Namespace

Assemblies