WPF UI InkCanvas 导师演示画板 演示 笔记 画笔 识别

 <Grid><InkCanvas Name="inkCanvas"/><Button Content="识别" Click="Button_Click" VerticalAlignment="Bottom"/></Grid>

引用内库

Ink ink = new Ink();
private void Button_Click(object sender, RoutedEventArgs e)
{using RecognizerContext recognizerContext = new RecognizerContext();recognizerContext.Strokes = ink.CreateStrokes();recognizerContext.Strokes.Add(CombineStroke());RecognitionResult result = recognizerContext.Recognize(out RecognitionStatus status);RecognitionAlternates als = result.GetAlternatesFromSelection();List<string> strs = new List<string>();for (int i = 0; i < als.Count; i++){strs.Add(als[i].ToString());}
}private Stroke CombineStroke()
{List<System.Drawing.Point> points = new List<System.Drawing.Point>();foreach (var item in this.inkCanvas.Strokes){points.AddRange(item.StylusPoints.Select(p => new System.Drawing.Point((int)p.X, (int)p.Y)).ToList());}Stroke stroke = ink.CreateStroke(points.ToArray());return stroke;
}