ImageNode.Data (Propiedad)
Actualización: noviembre 2007
Obtiene y establece datos definidos por la aplicación para el objeto ImageNode.
Espacio de nombres: Microsoft.Ink
Ensamblado: Microsoft.Ink.Analysis (en Microsoft.Ink.Analysis.dll)
Sintaxis
'Declaración
Public Property Data As Object
'Uso
Dim instance As ImageNode
Dim value As Object
value = instance.Data
instance.Data = value
public Object Data { get; set; }
public:
property Object^ Data {
Object^ get ();
void set (Object^ value);
}
/** @property */
public Object get_Data()
/** @property */
public void set_Data(Object value)
public function get Data () : Object
public function set Data (value : Object)
Valor de propiedad
Tipo: System.Object
Los datos definidos por la aplicación del objeto ImageNode.
Comentarios
Utilice esta propiedad para agregar sus propios datos al objeto ImageNode.
Ejemplos
En el ejemplo siguiente se agrega un objeto ImageNode a un objeto InkAnalyzer, theInkAnalyzer, de un control PictureBox, thePictureBox. Convierte la ubicación del control PictureBox de coordenadas en píxeles a coordenadas de entrada manuscrita. Establece la propiedad Data del objeto ImageNode para que sea la propiedad Image del control PictureBox.
' Add image node
Dim pictureNode As ImageNode = _
theInkAnalyzer.RootNode.CreateSubNode(Microsoft.Ink.ContextNodeType.Image)
' Convert pixel coordinates to pixel coordinates
Dim pictureTopLeft As Point = thePictureBox.Location
Dim pictureBottomRight As New Point(thePictureBox.Right, thePictureBox.Bottom)
Dim panelGraphics As Graphics = theNotesPanel.CreateGraphics()
theInkCollector.Renderer.PixelToInkSpace(panelGraphics, pictureTopLeft)
theInkCollector.Renderer.PixelToInkSpace(panelGraphics, pictureBottomRight)
panelGraphics.Dispose()
' Set the location of the image node
pictureNode.SetLocation(New AnalysisRegion(New Rectangle(pictureTopLeft.X, _
pictureTopLeft.Y, pictureBottomRight.X - pictureTopLeft.X, _
pictureBottomRight.Y - pictureTopLeft.Y)))
' Serialize the image to a byte array and set ImageNode.Data to the array.
Using stream As System.IO.MemoryStream = New System.IO.MemoryStream()
thePictureBox.Image.Save(stream, thePictureBox.Image.RawFormat)
pictureNode.Data = stream.ToArray()
End Using
// Add image node
ImageNode pictureNode = (ImageNode)
theInkAnalyzer.RootNode.CreateSubNode(Microsoft.Ink.ContextNodeType.Image);
// Convert pixel coordinates to pixel coordinates
Point pictureTopLeft = thePictureBox.Location;
Point pictureBottomRight = new Point(thePictureBox.Right,
thePictureBox.Bottom);
Graphics panelGraphics = theNotesPanel.CreateGraphics();
theInkCollector.Renderer.PixelToInkSpace(panelGraphics, ref pictureTopLeft);
theInkCollector.Renderer.PixelToInkSpace(panelGraphics, ref pictureBottomRight);
panelGraphics.Dispose();
// Set the location of the image node
pictureNode.SetLocation(new AnalysisRegion(new Rectangle(pictureTopLeft.X,
pictureTopLeft.Y, pictureBottomRight.X - pictureTopLeft.X,
pictureBottomRight.Y - pictureTopLeft.Y)));
// Serialize the image to a byte array and set ImageNode.Data to the array.
using (System.IO.MemoryStream stream = new System.IO.MemoryStream())
{
thePictureBox.Image.Save(stream, thePictureBox.Image.RawFormat);
pictureNode.Data = stream.ToArray();
}
Plataformas
Windows Vista
.NET Framework y .NET Compact Framework no admiten todas las versiones de cada plataforma. Para obtener una lista de las versiones compatibles, vea Requisitos de sistema de .NET Framework.
Información de versión
.NET Framework
Compatible con: 3.0