Take the following steps to create and run a program in Microsoft Expression Blend to add a magnifying glass effect using LEADTOOLS BitmapSourceViewer.

Using Microsoft Expression Blend, open a project that includes an Image Viewer. If you wish, you can open the project you created in the tutorials on Displaying an Image or Linking an Image List to an Image Viewer.
On the Properties tab, select Interactive Mode...InteractiveMode...MagnifyGlass.
Press F5 to build the application.
When the window appears, left-click anywhere on the image to display the magnifying glass, and:

Drag to change the magnified area.
Hold down the left mouse button, and at the same time right-click, to set the magnifying glass to a fixed position.

Example

[Window1.xaml]

This example is for a BitmapSource Viewer bound to an ImageList:


<Window
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 xmlns:Leadtools_Windows_Controls="clr-namespace:Leadtools.Windows.Controls;assembly=Leadtools.Windows.Controls"
 x:Class="MyList.Window1"
 x:Name="Window"
 Title="Window"
 Width="640" Height="480">
 
 <Grid x:Name="LayoutRoot">
  <Leadtools_Windows_Controls:ImageList HorizontalAlignment="Left" Margin="8,0,0,8" VerticalAlignment="Center" Width="150" IsSynchronizedWithCurrentItem="True" ScrollStyle="Vertical" ViewStyle="Explorer" x:Name="_imageList">
   <Leadtools_Windows_Controls:ImageListItem Width="131" Content="ImageListItem" x:Name="_imageListItem1">
    <Leadtools_Windows_Controls:ImageListItem.Image>
     <BitmapImage UriSource="file:///C:/Program Files/LEAD Technologies/LEADTOOLS 15/Images/ImageProcessingDemo/NaturalFruits.jpg"/>
    </Leadtools_Windows_Controls:ImageListItem.Image>
   </Leadtools_Windows_Controls:ImageListItem>
   <Leadtools_Windows_Controls:ImageListItem Width="127" Height="96" Content="ImageListItem" x:Name="_imageListItem2">
    <Leadtools_Windows_Controls:ImageListItem.Image>
     <BitmapImage UriSource="file:///C:/Program Files/LEAD Technologies/LEADTOOLS 15/Images/ScarletMaCaws.jpg"/>
    </Leadtools_Windows_Controls:ImageListItem.Image>
   </Leadtools_Windows_Controls:ImageListItem>
   <Leadtools_Windows_Controls:ImageListItem Width="124" Height="107" Content="ImageListItem" x:Name="_imageListItem3">
    <Leadtools_Windows_Controls:ImageListItem.Image>
     <BitmapImage UriSource="file:///C:/Program Files/LEAD Technologies/LEADTOOLS 15/Images/eye.gif"/>
    </Leadtools_Windows_Controls:ImageListItem.Image>
   </Leadtools_Windows_Controls:ImageListItem>
   <Leadtools_Windows_Controls:ImageListItem Width="115" Height="120" Content="ImageListItem" x:Name="_imageListItem4">
    <Leadtools_Windows_Controls:ImageListItem.Image>
     <BitmapImage UriSource="file:///C:/Program Files/LEAD Technologies/LEADTOOLS 15/Images/Butterfly.jpg"/>
    </Leadtools_Windows_Controls:ImageListItem.Image>
   </Leadtools_Windows_Controls:ImageListItem>
  </Leadtools_Windows_Controls:ImageList>
  
  <!-- add code from Displaying Images project-->
  <Leadtools_Windows_Controls:BitmapSourceViewer x:Name="Frame" Width="Auto" Height="Auto" SizeMode="Fit" Margin="173,29,14,53">
   <Leadtools_Windows_Controls:BitmapSourceViewer.Source>
    <BitmapImage UriSource="file:///C:/Program Files/LEAD Technologies/LEADTOOLS 15/Images/TestFrame1.jpg"/>
   </Leadtools_Windows_Controls:BitmapSourceViewer.Source>
  
   <!-- BitmarpSourceViewer InteractiveMode parameter is set to a magnify glass object-->
   <Leadtools_Windows_Controls:BitmapSourceViewer x:Name="Picture" Width="302" Height="235.5" Content="" SizeMode="Stretch" Source="{Binding Path=SelectedItem.Image, ElementName=_imageList, Mode=Default}" InteractiveMode="MagnifyGlass"/>
  </Leadtools_Windows_Controls:BitmapSourceViewer>
 </Grid>
</Window>

Example

[Window1.xaml]

See Also

Programming Reference

	Send comments on this topic. \| Back to Introduction - All Topics \| Help Version 15.03.27
Add a Magnifying Glass Using Expression Blend
See Also