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IsInteractiveModeBusy Property

Summary

Determines if the control is currently performing an interactive operation.

Syntax

C++

public virtual bool IsInteractiveModeBusy { get; }

  
Public Overridable ReadOnly Property IsInteractiveModeBusy As Boolean

public: 
virtual property bool IsInteractiveModeBusy { 
   bool get(); 
}

Property Value

true if the control is currently performing an interactive operation, false otherwise.

Remarks

The type of interactive user operation is determined by the InteractiveMode property.

Example

This example sets the interactive mode to draw a rectangular region. If the mouse is dragged up or to the left, the interactive mode is cancelled.

Silverlight C#

Silverlight VB

using Leadtools.Help; 
using Leadtools.Windows.Controls; 
 
 
public void BitmapSourceViewer_IsInteractiveModeBusy(ImageViewer viewer) 
{ 
   viewer.InteractiveUserRectangle += new EventHandler<RectangleInteractiveEventArgs>(viewer_InteractiveUserRectangle); 
   viewer.InteractiveMode = InteractiveMode.UserRectangle; 
 
   MessageBox.Show("Interactive mode set to draw a rectangular geometry.\nIf mouse is dragged up or to the left, interactive mode is cancelled"); 
} 
 
void viewer_InteractiveUserRectangle(object sender, RectangleInteractiveEventArgs e) 
{ 
   Console.WriteLine(@"" + e.Status); 
   ImageViewer viewer = sender as ImageViewer; 
 
   RectangleInteractiveEventArgs ee = new RectangleInteractiveEventArgs(e.Status, e.Bounds); 
   if (e.Status == InteractiveModeStatus.End) 
   { 
      e.Cancel = true; 
      if (!viewer.IsInteractiveModeBusy) 
      { 
         MessageBox.Show("Interactive mode (Rectangular geometry) cancelled"); 
         viewer.InteractiveMode = InteractiveMode.None; 
      } 
   } 
 
   Console.WriteLine(@"" + e.Bounds.Left + ", " + e.Bounds.Top + ", " + e.Bounds.Right + ", " + e.Bounds.Bottom); 
}

Imports Leadtools.Windows.Controls 
 
 
Public Sub BitmapSourceViewer_IsInteractiveModeBusy(ByVal viewer As ImageViewer) 
   AddHandler viewer.InteractiveUserRectangle, AddressOf viewer_InteractiveUserRectangle 
   viewer.InteractiveMode = InteractiveMode.UserRectangle 
 
   MessageBox.Show("Interactive mode set to draw a rectangular geometry." & Constants.vbLf & "If mouse is dragged up or to the left, interactive mode is cancelled") 
End Sub 
 
Private Sub viewer_InteractiveUserRectangle(ByVal sender As Object, ByVal e As RectangleInteractiveEventArgs) 
   Console.WriteLine("" & e.Status) 
   Dim viewer As ImageViewer = TryCast(sender, ImageViewer) 
 
   Dim ee As RectangleInteractiveEventArgs = New RectangleInteractiveEventArgs(e.Status, e.Bounds) 
   If e.Status = InteractiveModeStatus.End Then 
      e.Cancel = True 
      If (Not viewer.IsInteractiveModeBusy) Then 
         MessageBox.Show("Interactive mode (Rectangular geometry) cancelled") 
         viewer.InteractiveMode = InteractiveMode.None 
      End If 
   End If 
 
   Console.WriteLine("" & e.Bounds.Left & ", " & e.Bounds.Top & ", " & e.Bounds.Right & ", " & e.Bounds.Bottom) 
End Sub

using Leadtools.Help; 
using Leadtools.Windows.Controls; 
 
 
public void BitmapSourceViewer_IsInteractiveModeBusy(ImageViewer viewer) 
{ 
   viewer.InteractiveUserRectangle += new EventHandler<RectangleInteractiveEventArgs>(viewer_InteractiveUserRectangle); 
   viewer.InteractiveMode = InteractiveMode.UserRectangle; 
 
   MessageBox.Show("Interactive mode set to draw a rectangular geometry.\nIf mouse is dragged up or to the left, interactive mode is cancelled"); 
} 
 
void viewer_InteractiveUserRectangle(object sender, RectangleInteractiveEventArgs e) 
{ 
   Console.WriteLine(@"" + e.Status); 
   ImageViewer viewer = sender as ImageViewer; 
 
   RectangleInteractiveEventArgs ee = new RectangleInteractiveEventArgs(e.Status, e.Bounds); 
   if (e.Status == InteractiveModeStatus.End) 
   { 
      e.Cancel = true; 
      if (!viewer.IsInteractiveModeBusy) 
      { 
         MessageBox.Show("Interactive mode (Rectangular geometry) cancelled"); 
         viewer.InteractiveMode = InteractiveMode.None; 
      } 
   } 
 
   Console.WriteLine(@"" + e.Bounds.Left + ", " + e.Bounds.Top + ", " + e.Bounds.Right + ", " + e.Bounds.Bottom); 
}

Imports Leadtools 
Imports Leadtools.Windows.Controls 
 
 
Public Sub BitmapSourceViewer_IsInteractiveModeBusy(ByVal viewer As ImageViewer) 
   AddHandler viewer.InteractiveUserRectangle, AddressOf viewer_InteractiveUserRectangle 
   viewer.InteractiveMode = InteractiveMode.UserRectangle 
 
   MessageBox.Show("Interactive mode set to draw a rectangular geometry." & Constants.vbLf & 
                   "If mouse is dragged up or to the left, interactive mode is cancelled") 
End Sub 
 
Private Sub viewer_InteractiveUserRectangle(ByVal sender As Object, ByVal e As RectangleInteractiveEventArgs) 
   Console.WriteLine("" & e.Status) 
   Dim viewer As ImageViewer = TryCast(sender, ImageViewer) 
 
   Dim ee As RectangleInteractiveEventArgs = New RectangleInteractiveEventArgs(e.Status, e.Bounds) 
   If e.Status = InteractiveModeStatus.End Then 
      e.Cancel = True 
      If (Not viewer.IsInteractiveModeBusy) Then 
         MessageBox.Show("Interactive mode (Rectangular geometry) cancelled") 
         viewer.InteractiveMode = InteractiveMode.None 
      End If 
   End If 
 
   Console.WriteLine("" & e.Bounds.Left & ", " & e.Bounds.Top & ", " & e.Bounds.Right & ", " & e.Bounds.Bottom) 
End Sub

Requirements

Target Platforms

Reference

ImageViewer Class

ImageViewer Members

Help Version 19.0.2017.10.27

Leadtools.Windows.Controls Assembly

Introduction

Getting Started

Namespaces

Leadtools.Windows.Controls Namespace

Assemblies