本文整理汇总了VB.NET中System.Windows.Input.TouchDevice.Id属性的典型用法代码示例。如果您正苦于以下问题：VB.NET TouchDevice.Id属性的具体用法？VB.NET TouchDevice.Id怎么用？VB.NET TouchDevice.Id使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Windows.Input.TouchDevice的用法示例。
在下文中一共展示了TouchDevice.Id属性的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: CType
' Touch Move
Private Sub canvas_TouchMove(ByVal sender As System.Object, ByVal e As System.Windows.Input.TouchEventArgs)
Dim _canvas As Canvas = CType(sender, Canvas)
If (_canvas IsNot Nothing) Then
Dim tp = e.GetTouchPoint(_canvas)
' This is the first touch point; just record its position.
If e.TouchDevice.Id = firstTouchId Then
pt1.X = tp.Position.X
pt1.Y = tp.Position.Y
' This is not the first touch point; draw a line from the first point to this one.
ElseIf e.TouchDevice.Id <> firstTouchId Then
pt2.X = tp.Position.X
pt2.Y = tp.Position.Y
Dim _line As New Line()
_line.Stroke = New RadialGradientBrush(Colors.White, Colors.Black)
_line.X1 = pt1.X
_line.X2 = pt2.X
_line.Y1 = pt1.Y
_line.Y2 = pt2.Y
_line.StrokeThickness = 2
_canvas.Children.Add(_line)
End If
End If
End Sub