RasterWindowLevelDialog Class

Visual Basic
C#
Objective-C
Java
C++

public class RasterWindowLevelDialog : System.Windows.Forms.Form, System.ComponentModel.IComponent, System.ComponentModel.ISynchronizeInvoke, System.IDisposable, System.Windows.Forms.IBindableComponent, System.Windows.Forms.IContainerControl, System.Windows.Forms.IDropTarget, System.Windows.Forms.IWin32Window

'Declaration
 
Public Class RasterWindowLevelDialog 
   Inherits System.Windows.Forms.Form
   Implements System.ComponentModel.IComponent, System.ComponentModel.ISynchronizeInvoke, System.IDisposable, System.Windows.Forms.IBindableComponent, System.Windows.Forms.IContainerControl, System.Windows.Forms.IDropTarget, System.Windows.Forms.IWin32Window

'Usage
 
Dim instance As RasterWindowLevelDialog

public ref class RasterWindowLevelDialog : public System.Windows.Forms.Form, System.ComponentModel.IComponent, System.ComponentModel.ISynchronizeInvoke, System.IDisposable, System.Windows.Forms.IBindableComponent, System.Windows.Forms.IContainerControl, System.Windows.Forms.IDropTarget, System.Windows.Forms.IWin32Window

The Window Level dialog can be seen below:

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

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Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core
Imports Leadtools.WinForms.CommonDialogs.Color

Public Sub _windowLevleDlg_Help(ByVal sender As Object, ByVal e As RasterColorDialogHelpEventArgs) Handles _windowLevleDlg.Help
   If e.Dialog = RasterColorDialogHelpName.WindowLevel Then
      MessageBox.Show("Window Level dialog Help")
   End If
End Sub
WithEvents _windowLevleDlg As New RasterWindowLevelDialog

Public Sub WindowLevelDialogExample()
   ' Prepare RasterCodecs
   Dim codecs As New RasterCodecs()

   ' load an image
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"))

   Dim size As Integer
   Dim minMaxBitsCmd As MinMaxBitsCommand = New MinMaxBitsCommand
   Dim minMaxValuesCmd As MinMaxValuesCommand = New MinMaxValuesCommand

   size = (1 << (leadImage.HighBit - leadImage.LowBit + 1))

   minMaxBitsCmd.Run(leadImage)
   _windowLevleDlg.LowBit = minMaxBitsCmd.MinimumBit
   _windowLevleDlg.HighBit = minMaxBitsCmd.MaximumBit

   minMaxValuesCmd.Run(leadImage)
   _windowLevleDlg.Low = minMaxValuesCmd.MinimumValue
   _windowLevleDlg.High = minMaxValuesCmd.MaximumValue

   ReDim _windowLevleDlg.LookupTable(size)
   _windowLevleDlg.AutoProcess = False
   _windowLevleDlg.Factor = 0
   _windowLevleDlg.Image = leadImage
   _windowLevleDlg.ZoomToFit = True
   _windowLevleDlg.ShowPreview = True
   _windowLevleDlg.ShowZoomLevel = True
   _windowLevleDlg.ShowHelp = False
   _windowLevleDlg.ShowRange = True
   _windowLevleDlg.Signed = leadImage.Signed
   _windowLevleDlg.StartColor = New Leadtools.RasterColor(0, 0, 0)
   _windowLevleDlg.EndColor = New Leadtools.RasterColor(255, 255, 255)
   _windowLevleDlg.WindowLevelFlags = Leadtools.RasterPaletteWindowLevelFlags.Inside Or Leadtools.RasterPaletteWindowLevelFlags.Linear

   If DialogResult.OK = _windowLevleDlg.ShowDialog(Nothing) Then

      Dim command As WindowLevelCommand = New WindowLevelCommand

      command.HighBit = _windowLevleDlg.HighBit
      command.LowBit = _windowLevleDlg.LowBit
      command.LookupTable = _windowLevleDlg.LookupTable
      command.Order = Leadtools.RasterByteOrder.Bgr

      command.Run(leadImage)
   End If

   ' save the resulted image
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "WindowLevelDialogResult.bmp"), RasterImageFormat.Bmp, 24)
End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
using Leadtools.WinForms.CommonDialogs.Color;

public void windowLevelDlg_Help(object sender, RasterColorDialogHelpEventArgs e)
{
   if(e.Dialog == RasterColorDialogHelpName.WindowLevel)
   {
      MessageBox.Show ( "Window Level dialog Help" );
   }
}

public void WindowLevelDialogExample()
{
   // initialize the RasterCodecs
   RasterCodecs codecs = new RasterCodecs();

   // load an image
   RasterImage rasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"));

   int size ;
   RasterWindowLevelDialog windowLevelDlg = new RasterWindowLevelDialog();
   MinMaxBitsCommand minMaxBitsCmd= new MinMaxBitsCommand ( );
   MinMaxValuesCommand minMaxValuesCmd= new MinMaxValuesCommand ( );

   size= (1 << (rasterImage.HighBit - rasterImage.LowBit + 1));

   minMaxBitsCmd.Run ( rasterImage );
   windowLevelDlg.LowBit  = minMaxBitsCmd.MinimumBit ; 
   windowLevelDlg.HighBit = minMaxBitsCmd.MaximumBit ; 

   minMaxValuesCmd.Run ( rasterImage );
   windowLevelDlg.Low  = minMaxValuesCmd.MinimumValue ;
   windowLevelDlg.High = minMaxValuesCmd.MaximumValue ; 

   windowLevelDlg.AutoProcess    = false ;
   windowLevelDlg.Factor         = 0 ;
   windowLevelDlg.Image          = rasterImage ;
   windowLevelDlg.ZoomToFit      = true ;
   windowLevelDlg.ShowPreview    = true ;
   windowLevelDlg.ShowZoomLevel  = true ;
   windowLevelDlg.ShowHelp       = false ;
   windowLevelDlg.ShowRange      = true ;
   windowLevelDlg.Signed         = rasterImage.Signed;
   windowLevelDlg.LookupTable    = new Leadtools.RasterColor [size];
   windowLevelDlg.StartColor     = new Leadtools.RasterColor ( 0, 0 , 0 ) ; 
   windowLevelDlg.EndColor       = new Leadtools.RasterColor ( 255, 255, 255 ) ; 
   windowLevelDlg.WindowLevelFlags = Leadtools.RasterPaletteWindowLevelFlags.Inside | Leadtools.RasterPaletteWindowLevelFlags.Linear;
   windowLevelDlg.Help           += new EventHandler<RasterColorDialogHelpEventArgs>(windowLevelDlg_Help);


   if ( DialogResult.OK == windowLevelDlg.ShowDialog ( null ) )
   {
      WindowLevelCommand command = new WindowLevelCommand();

      command.HighBit     = windowLevelDlg.HighBit;
      command.LowBit      = windowLevelDlg.LowBit;
      command.LookupTable = windowLevelDlg.LookupTable;
      command.Order       = Leadtools.RasterByteOrder.Bgr;

      command.Run(rasterImage);
   }

   // save the resulted image
   codecs.Save(rasterImage, Path.Combine(LEAD_VARS.ImagesDir,"WindowLevelDialogResult.bmp"), RasterImageFormat.Bmp, 24);
}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

Target Platforms

Reference

RasterWindowLevelDialog Members
Leadtools.WinForms.CommonDialogs.Color Namespace
Leadtools.RasterPalette.WindowLevelFillLookupTable(Leadtools.RasterColor[],Leadtools.RasterColor,Leadtools.RasterColor,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,System.Int32,Leadtools.RasterPaletteWindowLevelFlags)
Leadtools.ImageProcessing.Core.WindowLevelCommand