[求助]█vlax-put-property函数找不到该元素怎么办？█

santalin

我用以下句子想要修改标注的尺寸界线颜色
(vlax-put-property (vlax-ename->vla-object (ssname ss count)) "ExtensionLineColor" 256)

可是由于半径标注没有"ExtensionLineColor"这个名称
所有选择所有标注并修改时会返回以下错误：

错误: ActiveX 服务器返回错误: 未知名称

那么，如何判断某个标注对象是否含有ExtensionLineColor这个名称呢？
请高手解答：

                                                                                                                                                          
(if    判别方法                                                                                                                                   
(vlax-put-property (vlax-ename->vla-object (ssname ss count)) "ExtensionLineColor" 256)  
)                                                                                                                                                         
                                                                                                                                                          

santalin

没人知道吗？唉～～～

nonsmall

多看看书

函数 vlax-property-available-p

santalin

nonsmall发表于2009-4-17 9:34:00多看看书函数 vlax-property-available-p

yjtdkj

nonsmall 发表于 2009-4-17 09:34
多看看书函数 vlax-property-available-p

要看哪本书？请教