InkCanvas

说明：本例简单展示了InkCanvas的使用，并详细列出了InkCanvasEditingMode的枚举值。

 <Grid>
    <InkCanvas Name="inkCanvas" Background="Ivory">
      <InkCanvas.DefaultDrawingAttributes>
        <Ink:DrawingAttributes xmlns:ink="system-windows-ink" Color="Red" Width="5" />
      </InkCanvas.DefaultDrawingAttributes>
    </InkCanvas>

    <!-- This stack panel of buttons is a sibling to InkCanvas (not a child) but overlapping it, 
         higher in z-order, so that ink is collected and rendered behind -->
    <StackPanel Name="buttonBar" VerticalAlignment="Top" Height="26" Orientation="Horizontal" Margin="5">
      <Button Click="Ink">Ink</Button>
      <Button Click="Highlight">Highlight</Button>
      <Button Click="EraseStroke">EraseStroke</Button>
      <Button Click="Select">Select</Button>
    </StackPanel>
  </Grid>

 // Set the EditingMode to ink input.
        private void Ink(object sender, RoutedEventArgs e)
        {
            //InkCanvas.EditingMode,获取或设置活动指针设备使用的用户编辑模式。这是一个依赖项属性。

            inkCanvas.EditingMode = InkCanvasEditingMode.Ink;

            // Set the DefaultDrawingAttributes for a red pen.
            inkCanvas.DefaultDrawingAttributes.Color = Colors.Red;
            inkCanvas.DefaultDrawingAttributes.IsHighlighter = false;
            inkCanvas.DefaultDrawingAttributes.Height = 2;
        }

        // Set the EditingMode to highlighter input.
        private void Highlight(object sender, RoutedEventArgs e)
        {
            inkCanvas.EditingMode = InkCanvasEditingMode.Ink;

            // Set the DefaultDrawingAttributes for a highlighter pen.
            inkCanvas.DefaultDrawingAttributes.Color = Colors.Yellow;
            inkCanvas.DefaultDrawingAttributes.IsHighlighter = true;
            inkCanvas.DefaultDrawingAttributes.Height = 25;
        }

        // Set the EditingMode to erase by stroke.
        private void EraseStroke(object sender, RoutedEventArgs e)
        {
            inkCanvas.EditingMode = InkCanvasEditingMode.EraseByStroke;
        }

        // Set the EditingMode to selection.
        private void Select(object sender, RoutedEventArgs e)
        {

            inkCanvas.EditingMode = InkCanvasEditingMode.Select;
        }

        #region InkCanvasEditingMode的枚举值

        //     指示当笔向 System.Windows.Controls.InkCanvas 发送数据时不执行任何操作。
//None = 0,


// 指示当笔向 System.Windows.Controls.InkCanvas 发送数据时，在其上显示墨迹。
//Ink = 1,

//     指示 System.Windows.Controls.InkCanvas 对笔势做出响应，但不接收墨迹。
// GestureOnly = 2,

//     指示 System.Windows.Controls.InkCanvas 对笔势做出响应并接收墨迹。
// InkAndGesture = 3,

//     指示笔在 System.Windows.Controls.InkCanvas 上选择笔画和元素。
//Select = 4,

//     指示当笔和笔画相交时将擦除部分笔画。
//EraseByPoint = 5,

//     指示当笔和笔画相交时将擦除整个笔画。
//EraseByStroke = 6,
        #endregion