做类似于图层的菜单？
用cad的做菜单的方法有没有办法做类似于图层的菜单？好像很难的。我看到有的开发人员能做到，是不是要用arx技术，能否点拨一二。谢谢LISP cannot accomplish this. 那有没有办法可以做到象DESIGN CENTER那样的对话框，永远留在CAD 的绘图区的？ 唉,可停靠对话框 LISP 也做不出来的
ARX 和 ODCL 可以的 这些是标准的CAD预定义控件
<P class=body>Toolbar control definitions use the keyword Control followed by a name specifying the type of control element requested contained in parentheses.
<A name="" nid="2"></A><PRE class=prog_in_end_0>TAG4 </PRE><A name="" nid="3"></A>
<P class=body>The values for the element parameter are as follows (they are not case-sensitive):
<A name=389532 nid="4"></A>
<P class=define_head>_Color
<A name="" nid="5"></A>
<P class=define_text>Specifies the color control element. This element is a drop-down list that provides specification of the current color.
<A name=421016 nid="6"></A>
<P class=define_head>_Dimstyle
<A name="" nid="7"></A>
<P class=define_text>Specifies the dimension style control element. This element is a drop-down list that provides specification of the current dimension style.
<A name=389534 nid="8"></A>
<P class=define_head>_Layer
<A name="" nid="9"></A>
<P class=define_text>Specifies the layer control element. This element is a drop-down list that provides control of the current layers in the drawing.
<A name=389535 nid="10"></A>
<P class=define_head>_Linetype
<A name="" nid="11"></A>
<P class=define_text>Specifies the linetype control element. This element is a drop-down list that provides specification of the current linetype.
<A name=410784 nid="12"></A>
<P class=define_head>_Lineweight
<A name="" nid="13"></A>
<P class=define_text>Specifies the lineweight control element. This element is a drop-down list that provides specification of the current lineweight.
<A name=410786 nid="14"></A>
<P class=define_head>_PlotStyle
<A name="" nid="15"></A>
<P class=define_text>Specifies the plot style control element. This element is a drop-down list that provides specification of the current plot style.
<A name=420699 nid="16"></A>
<P class=define_head>_Refblkname
<A name="" nid="17"></A>
<P class=define_text>Specifies the xref name control element. This element displays the current xref name in edit mode.
<A name=420700 nid="18"></A>
<P class=define_head>_UCSManager
<A name="" nid="19"></A>
<P class=define_text>Specifies the UCS control element. This element is a drop-down list that provides specification of the current UCS.
<A name=420976 nid="20"></A>
<P class=define_head>_View
<A name="" nid="21"></A>
<P class=define_text>Specifies the view control element. This element is a drop-down list that provides specification of the current standard 3D views.
<A name=420701 nid="22"></A>
<P class=define_head_long>_ViewportScale
<A name="" nid="23"></A>
<P class=define_text>Specifies the viewport scale control element. This element is a drop-down list that provides specification of viewport scaling in Layout mode.
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