MedicalViewerAlpha Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++/CLI

public class MedicalViewerAlpha : MedicalViewerCommonActions, System.IDisposable

'Declaration
 
Public Class MedicalViewerAlpha 
   Inherits MedicalViewerCommonActions
   Implements System.IDisposable

'Usage
 
Dim instance As MedicalViewerAlpha

public sealed class MedicalViewerAlpha : IClosable //In WinRT the IDisposable interface is replaced by IClosable

function Leadtools.MedicalViewer.MedicalViewerAlpha()

public ref class MedicalViewerAlpha : public MedicalViewerCommonActions, System.IDisposable

To set the properties of the alpha channel, call the MedicalViewerBaseCell.SetActionProperties method. To retrieve the properties call the MedicalViewerBaseCell.GetActionProperties method.

Alpha is the standard name for the Factor Value that indicates the factor to be applied to the lookup table. It is important to set the value of the lookup table to one of the following types: Sigmoid, Logarithmic or exponential. Valid values range from -1000 to 1000.

The mouse controls the actions as follows:

Click and hold the mouse to start the effect. When the assigned mouse button is released the action ends.
Dragging the mouse to the left decreases the center parameter.
Dragging the mouse to the right increases the center parameter.
Dragging the mouse up decreases the width parameter.
Dragging the mouse down increases the width parameter.

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

Public Sub MedicalViewerAlphaExample1()
   Dim myForm As MedicalViewerForm = GetMedicalControl()
   Dim medicalViewer As MedicalViewer = myForm.Viewer
   Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell)

   Dim windowLevel As MedicalViewerWindowLevel = CType(cell.GetActionProperties(MedicalViewerActionType.WindowLevel, 0), MedicalViewerWindowLevel)

   Select Case windowLevel.LookupTableType
      Case MedicalViewerLookupTableType.Exponential, MedicalViewerLookupTableType.Logarithmic, MedicalViewerLookupTableType.Sigmoid
         Dim alpha As MedicalViewerAlpha = CType(cell.GetActionProperties(MedicalViewerActionType.Alpha, 0), MedicalViewerAlpha)
         alpha.Alpha += 100
         cell.SetActionProperties(MedicalViewerActionType.Alpha, alpha, 0)
         alpha.Dispose()
      Case Else
   End Select
   windowLevel.Dispose()
   myForm.ShowDialog()
End Sub

public void MedicalViewerAlphaExample1()
{
   MedicalViewerForm myForm  = GetMedicalControl();
   MedicalViewer medicalViewer = myForm.Viewer;
   MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(medicalViewer.Cells[0]);

   MedicalViewerWindowLevel windowLevel = (MedicalViewerWindowLevel)cell.GetActionProperties(MedicalViewerActionType.WindowLevel, 0);

   switch(windowLevel.LookupTableType)
   {
      case MedicalViewerLookupTableType.Exponential:
      case MedicalViewerLookupTableType.Logarithmic:
      case MedicalViewerLookupTableType.Sigmoid:
         MedicalViewerAlpha alpha = (MedicalViewerAlpha)cell.GetActionProperties(MedicalViewerActionType.Alpha, 0);
         alpha.Alpha += 100;
         cell.SetActionProperties(MedicalViewerActionType.Alpha, alpha, 0);
         alpha.Dispose();
         break;
      default:
         break;
   }
   windowLevel.Dispose();
   myForm.ShowDialog();
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

MedicalViewerAlpha Members
Leadtools.MedicalViewer Namespace