ImageEffects Property (TwainProperties)

C#
Visual Basic
Objective-C
Java
C++

public TwainImageEffectsProperties ImageEffects {get; set;}

'Declaration
 
Public Property ImageEffects As TwainImageEffectsProperties

'Usage
 
Dim instance As TwainProperties
Dim value As TwainImageEffectsProperties
 
instance.ImageEffects = value
 
value = instance.ImageEffects

public:
property TwainImageEffectsProperties ImageEffects {
   TwainImageEffectsProperties get();
   void set (    TwainImageEffectsProperties value);
}

Property Value

TwainImageEffects structure contains Image effects data class.

This property should be called after calling get TwainSession.Properties property After you update this structure items, you can update the values to data source by calling set TwainSession.Properties property.

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

Copy Code

Imports Leadtools
Imports Leadtools.Twain

Public Sub ImageEffectsPropertyExample(ByVal parent As IWin32Window)
   Try
      Dim session As TwainSession = New TwainSession()
      session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None)

      Dim props As TwainProperties = session.Properties
      Dim imageEfx As TwainImageEffectsProperties = props.ImageEffects

      imageEfx.PixelFlavor = TwainImagePixelFlavor.Vanilla
      imageEfx.ColorScheme = TwainColorScheme.BlackWhite
      imageEfx.Highlight = 50
      imageEfx.Shadow = 50
      imageEfx.Brightness = 500
      imageEfx.Contrast = 100

      Dim buffer As String = String.Format("Current used Halftone = {0}", imageEfx.Halftone)
      MessageBox.Show(buffer)

      props.ImageEffects = imageEfx
      session.Properties = props
      session.Shutdown()
   Catch ex As Exception
      MessageBox.Show(ex.Message)
   End Try
End Sub

using Leadtools;
using Leadtools.Twain;

public void ImageEffectsPropertyExample(IWin32Window parent)
{
   try
   {
      TwainSession session = new TwainSession();
      session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None);

      TwainProperties props = session.Properties;
      TwainImageEffectsProperties imageEfx = props.ImageEffects;

      imageEfx.PixelFlavor = TwainImagePixelFlavor.Vanilla;
      imageEfx.ColorScheme = TwainColorScheme.BlackWhite;
      imageEfx.Highlight = 50;
      imageEfx.Shadow = 50;
      imageEfx.Brightness = 500;
      imageEfx.Contrast = 100;

      string buffer = string.Format("Current used Halftone = {0}", imageEfx.Halftone);
      MessageBox.Show(buffer);

      props.ImageEffects = imageEfx;
      session.Properties = props;
      session.Shutdown();
   }
   catch (Exception ex)
   {
      MessageBox.Show(ex.Message);
   }
}

Target Platforms

Reference

TwainProperties Structure
TwainProperties Members