InvertedTextCommandEventArgs Constructor

Summary

Initializes a new InvertedTextCommand class object with explicit parameters.

Syntax

C++

Java

public InvertedTextCommandEventArgs( 
   RasterImage image, 
   RasterRegion region, 
   LeadRect boundingRectangle, 
   int whiteCount, 
   int blackCount 
)

Public Function New( _ 
   ByVal image As RasterImage, _ 
   ByVal region As RasterRegion, _ 
   ByVal boundingRectangle As LeadRect, _ 
   ByVal whiteCount As Integer, _ 
   ByVal blackCount As Integer _ 
)

public InvertedTextCommandEvent( 
   Object source,  
   RasterImage image,  
   RasterRegion region,  
   LeadRect boundingRectangle,  
   int whiteCount,  
   int blackCount 
)

public: 
InvertedTextCommandEventArgs(  
   RasterImage^ image, 
   RasterRegion^ region, 
   LeadRect boundingRectangle, 
   int whiteCount, 
   int blackCount 
)

Parameters

image
RasterImage object that references the affected image.

region
LEADTOOLS RasterRegion representing the inverted text to be removed. Dispose of this region when it is no longer needed.

boundingRectangle
The bounding rectangle of the inverted text region being processed.

whiteCount
Total number of white pixels in the inverted text region being processed.

blackCount
Total number of black pixels in the inverted text region being processed.

Example

Runs the InvertedTextCommand on an image.

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

Reference

InvertedTextCommandEventArgs Class

InvertedTextCommandEventArgs Members

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Help Version 20.0.2020.4.3

Leadtools.ImageProcessing.Core Assembly

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