FloaterPosition Property

C#
Visual Basic
Objective-C
Java
C++

[DescriptionAttribute("Gets or sets the position of the floater.")]
[CategoryAttribute("Floater and Region")]
public virtual Point FloaterPosition {get; set;}

'Declaration
 
<DescriptionAttribute("Gets or sets the position of the floater.")>
<CategoryAttribute("Floater and Region")>
Public Overridable Property FloaterPosition As Point

'Usage
 
Dim instance As RasterImageViewer
Dim value As Point
 
instance.FloaterPosition = value
 
value = instance.FloaterPosition

[DescriptionAttribute("Gets or sets the position of the floater.")]
[CategoryAttribute("Floater and Region")]
public:
virtual property Point FloaterPosition {
   Point get();
   void set (    Point value);
}

Property Value

A System.Drawing.Point object that represents the top-left position used when painting the FloaterImage.

You can manually set the value of this property to control where the FloaterImage is painted.

When the InteractiveMode of this RasterImageVieweris set to RasterViewerInteractiveMode.Floater, the viewer will update the value of this property as the user drags the FloaterImage around.

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

Private Sub viewer_InteractiveFloater(ByVal sender As Object, ByVal e As RasterViewerPointEventArgs)
   ' show information about the user interaction
   Dim viewer As RasterImageViewer = CType(IIf(TypeOf sender Is RasterImageViewer, sender, Nothing), RasterImageViewer)
   Console.WriteLine("Status: {0}, Canceled: {1}, Point: {2}, Floater Position: {3}", e.Status, e.Cancel, e.Point, viewer.FloaterPosition)
End Sub
Public Sub RasterImageViewer_FloaterPosition(ByVal viewer As RasterImageViewer)
   ' hook into the viewer InteractiveFloater event to get updated whenever the user moves the floater.
   AddHandler viewer.InteractiveFloater, AddressOf viewer_InteractiveFloater

   ' add a floater the viewer and start the floater interactive mode
   ' we are going to create the floater image manually as a red ellipse with a region.

   Dim palette As RasterColor() = New RasterColor() {}
   Dim floaterImage As RasterImage = New RasterImage(RasterMemoryFlags.Conventional, 200, 200, 24, RasterByteOrder.Bgr, _
                                                     RasterViewPerspective.TopLeft, palette, IntPtr.Zero, 0)
   Dim container As RasterImageGdiPlusGraphicsContainer = New RasterImageGdiPlusGraphicsContainer(floaterImage)

   Try
      container.Graphics.FillRectangle(Brushes.Black, 0, 0, floaterImage.ImageWidth, floaterImage.ImageHeight)
      container.Graphics.FillEllipse(Brushes.Red, 0, 0, floaterImage.ImageWidth, floaterImage.ImageHeight)
   Finally
      CType(container, IDisposable).Dispose()
   End Try

   floaterImage.AddColorToRegion(RasterColor.FromKnownColor(RasterKnownColor.Red), RasterRegionCombineMode.Set)

   viewer.FloaterImage = floaterImage
   viewer.FloaterVisible = True
   viewer.FloaterPosition = New Point(100, 100)
   viewer.InteractiveMode = RasterViewerInteractiveMode.Floater

   MessageBox.Show("Click and move the floater")
End Sub

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

private void viewer_InteractiveFloater(object sender, RasterViewerPointEventArgs e)
{
   // show information about the user interaction
   RasterImageViewer viewer = sender as RasterImageViewer;
   Console.WriteLine("Status: {0}, Canceled: {1}, Point: {2}, Floater Position: {3}", e.Status, e.Cancel, e.Point, viewer.FloaterPosition);
}
public void RasterImageViewer_FloaterPosition(RasterImageViewer viewer)
{
   // hook into the viewer InteractiveFloater event to get updated whenever the user moves the floater.
   viewer.InteractiveFloater += new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveFloater);

   // add a floater the viewer and start the floater interactive mode
   // we are going to create the floater image manually as a red ellipse with a region.

   RasterColor[]palette = new RasterColor[0];
   RasterImage floaterImage = new RasterImage(
      RasterMemoryFlags.Conventional,
      200,
      200,
      24,
      RasterByteOrder.Bgr,
      RasterViewPerspective.TopLeft,
      palette,
      IntPtr.Zero,
      0
      );

   using (RasterImageGdiPlusGraphicsContainer container = new RasterImageGdiPlusGraphicsContainer(floaterImage))
   {
      container.Graphics.FillRectangle(Brushes.Black, 0, 0, floaterImage.ImageWidth, floaterImage.ImageHeight);
      container.Graphics.FillEllipse(Brushes.Red, 0, 0, floaterImage.ImageWidth, floaterImage.ImageHeight);
   }

   floaterImage.AddColorToRegion(RasterColor.FromKnownColor(RasterKnownColor.Red), RasterRegionCombineMode.Set);

   viewer.FloaterImage = floaterImage;
   viewer.FloaterVisible = true;
   viewer.FloaterPosition = new Point(100, 100);
   viewer.InteractiveMode = RasterViewerInteractiveMode.Floater;

   MessageBox.Show("Click and move the floater");
}

Target Platforms

Reference

RasterImageViewer Class
RasterImageViewer Members