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PhysicalViewRectangle Property
See Also  Example
Leadtools.WinForms Namespace > RasterImageViewer Class : PhysicalViewRectangle Property



Gets the physical view rectangle.

Syntax

Visual Basic (Declaration) 
<BrowsableAttribute(False)>
Public Overridable ReadOnly Property PhysicalViewRectangle As Rectangle
Visual Basic (Usage)Copy Code
Dim instance As RasterImageViewer
Dim value As Rectangle
 
value = instance.PhysicalViewRectangle
C# 
[BrowsableAttribute(false)]
public virtual Rectangle PhysicalViewRectangle {get;}
C++/CLI 
[BrowsableAttribute(false)]
public:
virtual property Rectangle PhysicalViewRectangle {
   Rectangle get();
}

Return Value

The physical view rectangle.

Example

This example displays the information about the image and the RasterImageViewer settings.

Visual BasicCopy Code
Private Sub viewer_BorderPadding(ByVal sender As Object, ByVal e As EventArgs)
    Dim viewer As RasterImageViewer = CType(IIf(TypeOf sender Is RasterImageViewer, sender, Nothing), RasterImageViewer)
    MessageBox.Show(viewer.SizeMode.ToString())
End Sub
Public Sub RasterImageViewer_BorderPadding(ByVal viewer As RasterImageViewer)
    Dim b As ViewerBorderPadding = viewer.BorderPadding
    Dim s As String = String.Format("Border Padding: All {0} Left {1} Top {2} Right {3} Bottom {4}", b.All, b.Left, b.Top, b.Right, b.Bottom)
    Console.WriteLine(s)
    Console.WriteLine("Image Dpi: (" & viewer.ImageDpiX & ", " & viewer.ImageDpiY & ")")
    Console.WriteLine("Image Size: " & viewer.ImageSize.Width & ", " & viewer.ImageSize.Height)

    s = String.Format("LogicalViewRectangle {0}", viewer.LogicalViewRectangle)
    Console.WriteLine(s)
    s = String.Format("PhysicalViewRectangle {0}", viewer.PhysicalViewRectangle)
    Console.WriteLine(s)

End Sub
C#Copy Code
private void viewer_BorderPadding(object sender, EventArgs e) 
{ 
   RasterImageViewer viewer = sender as RasterImageViewer; 
   MessageBox.Show(viewer.SizeMode.ToString()); 
} 
public void RasterImageViewer_BorderPadding(RasterImageViewer viewer) 
{ 
   ViewerBorderPadding b = viewer.BorderPadding; 
   string s = string.Format("Border Padding: All {0}  Left {1}  Top {2}  Right {3}  Bottom {4}", b.All, b.Left, b.Top, b.Right, b.Bottom); 
   Console.WriteLine(s); 
   Console.WriteLine("Image Dpi: (" + viewer.ImageDpiX + ", " + viewer.ImageDpiY + ")"); 
   Console.WriteLine("Image Size: " + viewer.ImageSize.Width + ", " + viewer.ImageSize.Height); 
 
   s = string.Format("LogicalViewRectangle {0}", viewer.LogicalViewRectangle); 
   Console.WriteLine(s); 
   s = string.Format("PhysicalViewRectangle {0}", viewer.PhysicalViewRectangle); 
   Console.WriteLine(s); 
 
}

Remarks

The physical view rectangle is the current viewing rectangle in viewer coordinates. The value of this property is current pixel location on the RasterImageViewer control of the image top, left, right and bottom pixel values.

For example, you are using RasterPaintSizeMode.Normal and the viewer has a vertical scroll bar, when the scroll bar value is at the top of the image, the Top value of PhysicalViewRectangle will be 0. If you scroll the image up (by dragging the vertical scroll bar down), the value of Top will become a negative value since the top of the image is painted outside the control coordinates.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also