在arcgis engine中如何实现点击图元查询其属性功能？

在arcgis engine中如何实现点击图元查询其属性功能？

<P>这个很简单：</P><P>iSpatialFilter:将Geometry的属性设为一个点。</P><P>之后用IFeatureLayer或者IFeatureClass的Search方法就可以了</P>

如果是点,要设一个容限的

<P>有没有点例子?</P>

<P>   On Error GoTo eh
  
   '  Dim pMxDoc As IMxDocument
   Dim pActiveView As IActiveView
   Dim pIdentifyDialog As IIdentifyDialog
   Dim pIdentifyDialogProps As IIdentifyDialogProps
   Dim pEnumLayer As IEnumLayer
   Dim Player As ILayer</P><P>   '  Set pMxDoc = Application.Document
   Set pActiveView = GetMap() 'pMxDoc.FocusMap</P><P>   'Create a new IdentifyDialog and associate it
   'with the focus map and the map's display
   Set pIdentifyDialog = New IdentifyDialog
   Set pIdentifyDialogProps = pIdentifyDialog 'QI
   Set pIdentifyDialog.Map = GetMap()
   Set pIdentifyDialog.display = pActiveView.ScreenDisplay
  
   'Clear the dialog on each mouse click
   pIdentifyDialog.ClearLayers
  
   'Perform an identify on all of the layers the dialog
   'says are searchable
   Set pEnumLayer = pIdentifyDialogProps.Layers
   pEnumLayer.Reset
   Set Player = pEnumLayer.Next</P><P>   Do While Not Player Is Nothing
      pIdentifyDialog.AddLayerIdentifyPoint Player, x, y
      
      Set Player = pEnumLayer.Next
   Loop
  
   pIdentifyDialog.Show</P>

可以用IIdentifyDialog接口来实现，帮助上有