如何进行矩形选择

在MO中，如何进行类似于MapInfo的矩形选择呢？多谢支持！

多谢了，我搞定了。

从例子里扒了一段下来，你可以看mo自己带的离子，有个空间查找的例子，实现了多边形，矩形等多种选择。

Dim fr As MapObjects2.Rectangle
    Set fr = Map1.TrackRectangle
    Set g_searchSet = Map1.Layers(searchLayer).SearchShape(fr, moEdgeTouchOrAreaIntersect, "")
    Set g_searchBounds = GetRecordsetBounds(g_searchSet)
    Set g_searchShape = Nothing
    ExecuteSearch


Sub ExecuteSearch()
  
  '
  ' We're either searching with a single shape or a
  ' record set.  The search routines don't care so,
  ' put the search shape(s) in a single variable
  ' called shapes.
  '
  Dim shapes As Object
  Set shapes = Nothing
  If Not g_searchShape Is Nothing Then Set shapes = g_searchShape
  If Not g_searchSet Is Nothing Then Set shapes = g_searchSet
  If shapes Is Nothing Then Exit Sub
  
  ' reset the selection and execute the search
  Screen.MousePointer = 11
  Set g_selectedFeatures = Nothing
  If StrComp(List1.List(List1.ListIndex), "Search By Distance") = 0 Then
      ' Execute the SearchByDistance method on selected layer
      Set g_selectedFeatures = Map1.Layers(Combo2.ListIndex).SearchByDistance(shapes, Text1.Text, "")
  Else
      ' Execute the selected SearchByShape method on selected layer
      Set g_selectedFeatures = Map1.Layers(Combo2.ListIndex).SearchShape(shapes, List1.ListIndex, "")
  End If
  
  Set g_selectedBounds = GetRecordsetBounds(g_selectedFeatures)
    
  Map1.TrackingLayer.Refresh True
  Screen.MousePointer = 0
End Sub