多个Pointer(指针)

前面介绍的Pointer是主指针。

一个仪表可以有多个指针，例如我们要设计一个时钟，那么就应该有时、分、秒三个指针。

设计过程很简单，首先将Pointer(主指针)的Visible属性设置为False，然后打开MorePointers成员编辑创窗口，增加三个指针即可：

建议每个指针都通过Name属性指定名称，以方便在代码中引用指针，注意代码中的Name是区分大小写的：

Dim gg As WinForm.Gauges = e.Form.Controls("Guages1")
gg.RadialGauge.MorePointers("Hour").Value = 9
gg.RadialGauge.MorePointers("Minute").Value = 30
gg.RadialGauge.MorePointers("Second").Value = 20

如果不指定Name属性，就只能通过索引位置来引用指针了，很容易混淆：

Dim gg As WinForm.Gauges = e.Form.Controls("Guages1")
gg.RadialGauge.MorePointers(0).Value = 9
gg.RadialGauge.MorePointers(1).Value = 30
gg.RadialGauge.MorePointers(2).Value = 20

当然，MorePointers集合中的指针也是GaugePonter类型,例如：

Dim gg As WinForm.Gauges = e.Form.Controls("Guages1")
Dim pt As GaugePointer = gg.RadialGauge.MorePointers(0)
pt.Offset = 0
pt.Shape = C1.Win.C1Gauge.C1GaugePointerShape.Round