Gesture.Id 属性
获取应用程序笔势 的值。
命名空间： Microsoft.Ink
程序集： Microsoft.Ink（在 Microsoft.Ink.dll 中）
语法
声明
Public ReadOnly Property Id As ApplicationGesture
用法
Dim instance As Gesture
Dim value As ApplicationGesture
value = instance.Id
public ApplicationGesture Id { get; }
public:
property ApplicationGesture Id {
ApplicationGesture get ();
}
/** @property */
public ApplicationGesture get_Id()
public function get Id () : ApplicationGesture
属性值
类型：Microsoft.Ink.ApplicationGesture
应用程序笔势的值。
备注
备注
Gesture 对象的标识符不随时间而改变，这意味着它永远不会更改。
因为每个应用程序笔势 都作为 ApplicationGesture 枚举中的值存在，因此该值被用作笔势的 ID。
示例
在此示例中，识别应用程序笔势 时将激发一个事件处理程序。只有由应用程序通过调用 SetGestureStatus 方法专门请求的 ApplicationGesture 类型才会激发该事件。在检查传递给事件处理程序的第一个 Gesture 对象时，如果 Confidence 属性对某个 Check 笔势设置高置信度，则在由 HotPoint 属性表示的坐标周围绘制一个小圆圈。
' event handler for InkOverlay.Gesture event
Private Sub mInkObject_Gesture(ByVal sender As Object, ByVal e As InkCollectorGestureEventArgs)
' There might be more than one gesture passed in InkCollectorGestureEventArgs
' The gestures are arranged in order of confidence from most to least
' This event handler is only concerned with the first (most confident) gesture
' and only if the first gesture has RecognitionConfidence.Strong
Dim G As Gesture = e.Gestures(0)
' if this is ApplicationGesture.Check of RecognitionConfidence.Strong confidence
If ApplicationGesture.Check = G.Id And RecognitionConfidence.Strong = G.Confidence Then
Dim mInkOverlay As InkOverlay = DirectCast(sender, InkOverlay)
' assuming here that InkOverlay.AttachedControl property is set.
' This can be set with the .ctor InkOverlay(Control C) or the
' InkOverlay.AttachedControl property can be set later.
Using GR As Graphics = mInkOverlay.AttachedControl.CreateGraphics()
' get the hot point
Dim hotPoint As Point = G.HotPoint
' convert to pixel coordinates
mInkOverlay.Renderer.InkSpaceToPixel(GR, hotPoint)
' draw a small circle
GR.DrawEllipse(Pens.Orange, hotPoint.X - 6, hotPoint.Y - 6, 12, 12)
' cancel the event. This prevents the gesture from disappearing
' and lets you see the small circle and the gesture together
e.Cancel = True
End Using
End If
End Sub
// event handler for InkOverlay.Gesture event
private void mInkObject_Gesture(object sender, InkCollectorGestureEventArgs e)
{
// There might be more than one gesture passed in InkCollectorGestureEventArgs
// The gestures are arranged in order of confidence from most to least
// This event handler is only concerned with the first (most confident) gesture
// and only if the first gesture has RecognitionConfidence.Strong
Gesture G = e.Gestures[0];
// if this is ApplicationGesture.Check of RecognitionConfidence.Strong confidence
if (ApplicationGesture.Check == G.Id && RecognitionConfidence.Strong == G.Confidence)
{
InkOverlay mInkOverlay = (InkOverlay)sender;
// assuming here that InkOverlay.AttachedControl property is set.
// This can be set with the .ctor InkOverlay(Control C) or the
// InkOverlay.AttachedControl property can be set later.
using (Graphics GR = mInkOverlay.AttachedControl.CreateGraphics())
{
// get the hot point
Point hotPoint = G.HotPoint;
// convert to pixel coordinates
mInkOverlay.Renderer.InkSpaceToPixel(GR, ref hotPoint);
// draw a small circle
GR.DrawEllipse(Pens.Orange, hotPoint.X - 6, hotPoint.Y - 6, 12, 12);
// cancel the event. This prevents the gesture from disappearing
// and lets you see the small circle and the gesture together
e.Cancel = true;
}
}
}
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