ZoomToRectangle Method

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

public virtual void ZoomToRectangle( 
   Rect rc
)

'Declaration
 
Public Overridable Sub ZoomToRectangle( _
   ByVal rc As Rect _
)

'Usage
 
Dim instance As ImageViewer
Dim rc As Rect
 
instance.ZoomToRectangle(rc)

public virtual void ZoomToRectangle( 
   Rect rc
)

 function Leadtools.Windows.Controls.ImageViewer.ZoomToRectangle( 
   rc 
)

public:
virtual void ZoomToRectangle( 
   Rect rc
)

Parameters

rc: The rectangle to which the image should be zoomed, in client coordinates.

The control will call this method during InteractiveMode.ZoomTo.

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

Copy Code

Public Sub BitmapSourceViewer_ZoomToRectangle(ByVal viewer As ImageViewer)
    Dim rectSize As Double = 200
    Dim left As Double = (viewer.PhysicalSize.Width - rectSize) / 2.0
    Dim top As Double = (viewer.PhysicalSize.Height - rectSize) / 2.0
    Dim rcZoom As Rect = New Rect(left, top, rectSize, rectSize)
    viewer.ZoomToRectangle(rcZoom)
End Sub

public void BitmapSourceViewer_ZoomToRectangle(ImageViewer viewer)
{
   double rectSize = 200;
   double left = (viewer.PhysicalSize.Width - rectSize) / 2.0;
   double top = (viewer.PhysicalSize.Height - rectSize) / 2.0;
   Rect rcZoom = new Rect(left, top, rectSize, rectSize);
   viewer.ZoomToRectangle(rcZoom);
}

public void BitmapSourceViewer_ZoomToRectangle(ImageViewer viewer)
{
   double rectSize = 200;
   double left = (viewer.PhysicalSize.Width - rectSize) / 2.0;
   double top = (viewer.PhysicalSize.Height - rectSize) / 2.0;
   Rect rcZoom = new Rect(left, top, rectSize, rectSize);
   viewer.ZoomToRectangle(rcZoom);
}

Public Sub BitmapSourceViewer_ZoomToRectangle(ByVal viewer As ImageViewer)
   Dim rectSize As Double = 200
   Dim left As Double = (viewer.PhysicalSize.Width - rectSize) / 2.0
   Dim top As Double = (viewer.PhysicalSize.Height - rectSize) / 2.0
   Dim rcZoom As Rect = New Rect(left, top, rectSize, rectSize)
   viewer.ZoomToRectangle(rcZoom)
End Sub

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

ImageViewer Class
ImageViewer Members