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InvertedTextCommandEventArgs Class

Summary

Handles each inverted text segment found by InvertedTextCommand.

Syntax
C#
VB
Java
Objective-C
C++
public class InvertedTextCommandEventArgs : EventArgs 
Public Class InvertedTextCommandEventArgs  
   Inherits System.EventArgs 
@interface LTInvertedTextCommandEventArgs : NSObject 
public class InvertedTextCommandEvent extends LeadEvent 
public ref class InvertedTextCommandEventArgs : public System.EventArgs  

Example

Runs the InvertedTextCommand on an image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void InvertedTextCommandEventArgsExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   InvertedTextCommand command = new InvertedTextCommand(InvertedTextCommandFlags.UseDpi | InvertedTextCommandFlags.CallBackRegion, 5000, 500, 70, 95); 
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S4); 
   command.Run(image); 
 
} 
 
private void InvertedTextEvent_S4(object sender, InvertedTextCommandEventArgs e) 
{ 
   InvertedTextCommandEventArgs ee = new InvertedTextCommandEventArgs(e.Image, e.Region, e.BoundingRectangle, e.WhiteCount, e.BlackCount); 
   e.Status = RemoveStatus.Remove; 
 
   if (e.Region != null) 
   { 
      e.Image.SetRegion(null, e.Region, RasterRegionCombineMode.AndNotRegion); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public WithEvents invertedTextCommand_S4 As InvertedTextCommand 
Public Sub InvertedTextCommandEventArgsExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")) 
 
   ' Prepare the command 
   invertedTextCommand_S4 = New InvertedTextCommand(InvertedTextCommandFlags.UseDpi Or InvertedTextCommandFlags.CallBackRegion, 5000, 500, 70, 95) 
   invertedTextCommand_S4.Run(leadImage) 
 
End Sub 
 
Private Sub InvertedTextCommand_InvertedText_S4(ByVal sender As Object, ByVal e As InvertedTextCommandEventArgs) Handles invertedTextCommand_S4.InvertedText 
   Dim ee As InvertedTextCommandEventArgs = New InvertedTextCommandEventArgs(e.Image, e.Region, e.BoundingRectangle, e.WhiteCount, e.BlackCount) 
   e.Status = RemoveStatus.Remove 
   If Not (e.Region Is Nothing) Then 
      e.Image.SetRegion(Nothing, e.Region, RasterRegionCombineMode.AndNotRegion) 
   End If 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 
c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Examples; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void InvertedTextCommandEventArgsExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   InvertedTextCommand command = new InvertedTextCommand(InvertedTextCommandFlags.UseDpi | InvertedTextCommandFlags.CallBackRegion, 5000, 500, 70, 95); 
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S4); 
   command.Run(image); 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1); 
   image.Dispose(); 
} 
 
private void InvertedTextEvent_S4(object sender, InvertedTextCommandEventArgs e) 
{ 
   InvertedTextCommandEventArgs ee = new InvertedTextCommandEventArgs(e.Image, null, e.BoundingRectangle, e.WhiteCount, e.BlackCount); 
   e.Status = RemoveStatus.Remove; 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
 
Public Sub InvertedTextCommandEventArgsExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As InvertedTextCommand = New InvertedTextCommand(InvertedTextCommandFlags.UseDpi Or InvertedTextCommandFlags.CallBackRegion, 5000, 500, 70, 95) 
   AddHandler command.InvertedText, AddressOf InvertedTextEvent_S4 
   command.Run(image) 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1) 
   image.Dispose() 
End Sub 
 
Private Sub InvertedTextEvent_S4(ByVal sender As Object, ByVal e As InvertedTextCommandEventArgs) 
   Dim ee As InvertedTextCommandEventArgs = New InvertedTextCommandEventArgs(e.Image, Nothing, e.BoundingRectangle, e.WhiteCount, e.BlackCount) 
   e.Status = RemoveStatus.Remove 
End Sub 

Requirements

Target Platforms

Help Version 20.0.2019.3.12
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Leadtools.ImageProcessing.Core Assembly