ScaleFactor Property (RasterImageViewer)

C#
Visual Basic
Objective-C
Java
C++

[DescriptionAttribute("Select one of the center mode available to the control (none, horizontal, vertical or both).")]
[CategoryAttribute("Behavior")]
public virtual double ScaleFactor {get; set;}

'Declaration
 
<DescriptionAttribute("Select one of the center mode available to the control (none, horizontal, vertical or both).")>
<CategoryAttribute("Behavior")>
Public Overridable Property ScaleFactor As Double

'Usage
 
Dim instance As RasterImageViewer
Dim value As Double
 
instance.ScaleFactor = value
 
value = instance.ScaleFactor

[DescriptionAttribute("Select one of the center mode available to the control (none, horizontal, vertical or both).")]
[CategoryAttribute("Behavior")]
public:
virtual property double ScaleFactor {
   double get();
   void set (    double value);
}

Property Value

The zoom factor used to display the image.

You can get and set this property when the SizeMode property is RasterPaintSizeMode.Normal.
This property is read only when the SizeMode property is set to any other value. When SizeMode is set to RasterPaintSizeMode.Stretch, the zoom factor is the smallest of the Width or Height zoom factors (the aspect ratio is not preserved).

This example zooms out on the image displayed in the viewer

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

Copy Code

Imports Leadtools.WinForms
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Drawing

Public Sub RasterImageViewer_ScaleFactor(ByVal viewer As RasterImageViewer)
   viewer.ScaleFactor = viewer.ScaleFactor * 0.9F
   Dim s As String = String.Format("CurrentXScaleFactor {0}, CurrentYScaleFactor {1}", viewer.CurrentXScaleFactor, viewer.CurrentYScaleFactor)
   MessageBox.Show(s)
End Sub

using Leadtools.WinForms;
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
using Leadtools.Drawing;

public void RasterImageViewer_ScaleFactor(RasterImageViewer viewer)
{
   viewer.ScaleFactor = viewer.ScaleFactor * 0.9f;
   string s = string.Format("CurrentXScaleFactor {0}, CurrentYScaleFactor {1}", viewer.CurrentXScaleFactor, viewer.CurrentYScaleFactor);
   MessageBox.Show(s);
}

Target Platforms

Reference

RasterImageViewer Class
RasterImageViewer Members