InkCollectorNewInAirPacketsEventArgs.Cursor 属性

2008-11-04

获取生成 NewInAirPackets 事件的 Cursor 对象。

命名空间： Microsoft.Ink
程序集： Microsoft.Ink（在 Microsoft.Ink.dll 中）

语法

声明
Public ReadOnly Property Cursor As Cursor
用法
Dim instance As InkCollectorNewInAirPacketsEventArgs
Dim value As Cursor

value = instance.Cursor

public Cursor Cursor { get; }

public:
property Cursor^ Cursor {
    Cursor^ get ();
}

/** @property */
public Cursor get_Cursor()

public function get Cursor () : Cursor

属性值

类型：Microsoft.Ink.Cursor
生成 NewInAirPackets 事件的对象。

备注

请不要将 Microsoft.Ink.Cursor 类与 System.Windows.Fo 类混淆。Microsoft.Ink.Cursor 表示有关 Tablet 指针和选择设备（通常是笔）的一般信息，而 System.Windows.Forms.Cursor 表示用于绘制鼠标指针的图像。

示例

在此示例中，InkCollectorNewInAirPacketsEventHandler 实例获得通过 InkCollectorNewInAirPacketsEventArgs 对象传递的最后一个数据包的 X 和 Y 值。X 和 Y 值总是位于数据包数据的前两个位置。

Private Sub mInkObject_NewInAirPackets2(ByVal sender As Object, ByVal e As InkCollectorNewInAirPacketsEventArgs)
    Dim DescriptorsPerPacket As Integer = 0
    ' determine how many descriptors there are per packet
    ' you could also obtain this value using:
    '   e.PacketData.Length / e.PacketCount
    ' but if you need to know which particular properties
    ' are supported (beyond X and Y which are always placed first)
    ' you will need to query e.Cursor.Tablet.IsPacketPropertySupported()
    For Each G As Guid In mInkObject.DesiredPacketDescription
        If (e.Cursor.Tablet.IsPacketPropertySupported(G)) Then
            DescriptorsPerPacket += 1
        End If
    Next

    Dim LastX As Integer = e.PacketData(DescriptorsPerPacket * (e.PacketCount - 1))
    Dim LastY As Integer = e.PacketData((DescriptorsPerPacket * (e.PacketCount - 1)) + 1)
End Sub

private void mInkObject_NewInAirPackets2(object sender, InkCollectorNewInAirPacketsEventArgs e)
{
    int DescriptorsPerPacket = 0;
    // determine how many descriptors there are per packet
    // you could also obtain this value using:
    //   e.PacketData.Length / e.PacketCount
    // but if you need to know which particular properties
    // are supported (beyond X and Y which are always placed first)
    // you will need to query e.Cursor.Tablet.IsPacketPropertySupported()

    foreach (Guid G in mInkObject.DesiredPacketDescription)
    {
        if (e.Cursor.Tablet.IsPacketPropertySupported(G))
        {
            DescriptorsPerPacket++;
        }
    }

    int LastX = e.PacketData[DescriptorsPerPacket * (e.PacketCount - 1)];
    int LastY = e.PacketData[(DescriptorsPerPacket * (e.PacketCount - 1)) + 1];

}