ImageNode.SetLocation Method

Article
2012-10-19

Sets the location of the non-ink image on the application document.

Namespace: System.Windows.Ink
Assembly: IAWinFX (in IAWinFX.dll)

Syntax

'Declaration
Public Sub SetLocation ( _
    location As AnalysisRegion _
)
'Usage
Dim instance As ImageNode 
Dim location As AnalysisRegion

instance.SetLocation(location)

public void SetLocation(
    AnalysisRegion location
)

public:
void SetLocation(
    AnalysisRegion^ location
)

public function SetLocation(
    location : AnalysisRegion
)

Parameters

location
Type: System.Windows.Ink.AnalysisRegion

Remarks

The location is set in ink coordinates.

Examples

The following example adds an ImageNode to an InkAnalyzer, theInkAnalyzer, for an Image named theImage. It sets the location of the ImageNode to the location of the Image and the Data property to the Source property of the Image.

' Add image node 
Dim pictureNode As ImageNode = _
    CType(theInkAnalyzer.RootNode.CreateSubNode(ContextNodeType.Image), _
    ImageNode)

' Set the location of the image node 
Dim imageTop As Double = InkCanvas.GetTop(theImage)
Dim imageLeft As Double = InkCanvas.GetLeft(theImage)

Dim imageBounds As New Rect(imageLeft, imageTop, theImage.Width, theImage.Height)
pictureNode.SetLocation(New AnalysisRegion(imageBounds))

' Serialize the image to a byte array and set ImageNode.Data to the array. 
' theImage.Source is a BitmapImage. 
Dim bmp As New BmpBitmapEncoder()
bmp.Frames.Add(BitmapFrame.Create(CType(theImage.Source, BitmapImage)))
Dim stream As New System.IO.MemoryStream()
Try
    bmp.Save(stream)
    pictureNode.Data = stream.ToArray()
Finally
    stream.Dispose()
End Try

// Add image node
ImageNode pictureNode = (ImageNode)
    theInkAnalyzer.RootNode.CreateSubNode(ContextNodeType.Image);

// Set the location of the image node 
double imageTop = InkCanvas.GetTop(theImage);
double imageLeft = InkCanvas.GetLeft(theImage);

Rect imageBounds = new Rect(imageLeft, imageTop, theImage.Width, theImage.Height);
pictureNode.SetLocation(new AnalysisRegion(imageBounds));

// Serialize the image to a byte array and set ImageNode.Data to the array. 
// theImage.Source is a BitmapImage.
BmpBitmapEncoder bmp = new BmpBitmapEncoder();
bmp.Frames.Add(BitmapFrame.Create((BitmapImage)theImage.Source));
using (System.IO.MemoryStream stream = new System.IO.MemoryStream())
{
    bmp.Save(stream);
    pictureNode.Data = stream.ToArray();
}

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.0

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