在PageLayoutControl中添加指北针等元素

<P>大家好，</P>
<P>    有一问题请教：我在Engine中开发一个进行地图整饰打印的独立程序，在添加指北针等元素时，如何调用出像ArcMap中的Style Selector？能调用出来吗（IStyleSelector只能用于ArcGIS Desktop）？</P>
<P>    另一个：我通过IMapSurroundFrame等接口可以添加一个指定的要素，但不是事先选择它的形状，如何调用出编辑该元素的属性页？</P>
<P>Thanks a lot.</P>
<P><a href="mailtFisherSSJ@yahoo.com.cn" target="_blank" >FisherSSJ@yahoo.com.cn</A></P>

 'Add a north arrow
  pEnv.PutCoords 10, 0.1, 11, 11
  With prgb
   .Red = 255
   .Green = 0
   .Blue = 0
   .UseWindowsDithering = True
  End With
  pid.Value = "esriCore.MarkerNorthArrow"
  Set Pmapsurround = CreateSurround(pid, pEnv, "North Arrow", pMxDoc.FocusMap, pMxDoc.PageLayout)
  'Change out the default north arrow
  Set pMarkerNorthArrow = Pmapsurround 'QI
  Set pCharacterMarkerSymbol = pMarkerNorthArrow.MarkerSymbol 'clones the symbol
  pCharacterMarkerSymbol.Color = prgb
  pCharacterMarkerSymbol.CharacterIndex = 45 'change the symbol
  pMarkerNorthArrow.MarkerSymbol = pCharacterMarkerSymbol 'set it back