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FloaterPosition Property

Summary

Gets or sets the position of the floater.

Syntax

C++

public virtual Point FloaterPosition { get; set; }

Public Overridable Property FloaterPosition As Point

public: 
virtual property Point FloaterPosition { 
   Point get(); 
   void set (    Point ); 
}

Property Value

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

Remarks

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.

Example

This sample creates a floater and lets the user move it.

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"); 
}

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

Requirements

Target Platforms

Reference

RasterImageViewer Class

RasterImageViewer Members

Help Version 19.0.2017.10.27

Leadtools.WinForms Assembly

Introduction

Getting Started

Namespaces

Leadtools.WinForms Namespace

Assemblies