ViewerBorderPadding Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class ViewerBorderPadding

'Declaration
 
Public Class ViewerBorderPadding

'Usage
 
Dim instance As ViewerBorderPadding

public sealed class ViewerBorderPadding

function Leadtools.WinForms.ViewerBorderPadding()

public ref class ViewerBorderPadding

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

Public Sub ViewerBorderPaddingExample(ByVal viewer As RasterImageViewer)
   If (viewer.IsImageAvailable) Then
      AddHandler viewer.BorderPadding.Changed, AddressOf BorderPadding_Changed
      viewer.BorderPadding.All = 0
      Dim viewerWidth As Integer = viewer.Right - viewer.Left
      Dim viewerHeight As Integer = viewer.Bottom - viewer.Top
      Dim imageWidth As Integer = viewer.Image.Width
      Dim imageHeight As Integer = viewer.Image.Height

      If (imageWidth < viewerWidth) Then
         viewer.BorderPadding.Left = (viewerWidth - imageWidth) \ 2
         viewer.BorderPadding.Right = 0
      End If

      If (imageHeight < viewerHeight) Then
         viewer.BorderPadding.Top = (viewerHeight - imageHeight) \ 2
         viewer.BorderPadding.Bottom = 0
      End If
      RemoveHandler viewer.BorderPadding.Changed, AddressOf BorderPadding_Changed
   End If
End Sub

Private Sub BorderPadding_Changed(ByVal sender As Object, ByVal e As EventArgs)
   Console.WriteLine("BorderPadding Changed")
End Sub

public void ViewerBorderPaddingExample(RasterImageViewer viewer)
{
   if(viewer.IsImageAvailable)
   {
      viewer.BorderPadding.Changed += new EventHandler(BorderPadding_Changed);
      viewer.BorderPadding.All = 0;
      int viewerWidth = viewer.Right - viewer.Left;
      int viewerHeight = viewer.Bottom - viewer.Top;
      int imageWidth = viewer.Image.Width;
      int imageHeight = viewer.Image.Height;

      if(imageWidth < viewerWidth)
      {
         viewer.BorderPadding.Left = (viewerWidth - imageWidth) / 2;
         viewer.BorderPadding.Right = 0;
      }

      if(imageHeight < viewerHeight)
      {
         viewer.BorderPadding.Top = (viewerHeight - imageHeight) / 2;
         viewer.BorderPadding.Bottom = 0;
      }

      viewer.BorderPadding.Changed -= new EventHandler(BorderPadding_Changed);
   }
}

private void BorderPadding_Changed(System.Object sender, EventArgs e)
{
   Console.WriteLine("BorderPadding Changed");
}

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

ViewerBorderPadding Members
Leadtools.WinForms Namespace