ImageNode.SetLocation 方法
设置非墨迹图像在应用程序文档上的位置。
命名空间： System.Windows.Ink
程序集： IAWinFX（在 IAWinFX.dll 中）
语法
声明
Public Sub SetLocation ( _
location As AnalysisRegion _
)
用法
Dim instance As ImageNode
Dim location As AnalysisRegion
instance.SetLocation(location)
public void SetLocation(
AnalysisRegion location
)
public:
void SetLocation(
AnalysisRegion^ location
)
public void SetLocation(
AnalysisRegion location
)
public function SetLocation(
location : AnalysisRegion
)
参数
- location
类型：System.Windows.Ink.AnalysisRegion
备注
位置以墨迹坐标设置。
示例
下面的示例为名为 theImage 的 Image 将一个 ImageNode 添加到 InkAnalyzer (theInkAnalyzer) 中。该示例将 ImageNode 的位置设置为 Image 的位置，并将 Data 属性设置为 Image 的 Source 属性。
' 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();
}
平台
Windows Vista
.NET Framework 和 .NET Compact Framework 并不是对每个平台的所有版本都提供支持。有关支持的版本的列表，请参见.NET Framework 系统要求。
版本信息
.NET Framework
受以下版本支持：3.0