[求助]怪了，我的PB90不认识函数?

奇怪了，我的PB9。0不认识函数？

源码：
string str_object
long lng_row

str_object=getobjectatpointer()
lng_row=long(mid(str_object,pos(str_object,"~t")+1))
str_object=left(str_object,(pos(str_object,'~t') - 1))
if str_object='ac_picname' or str_object='ac_text' then
this.setrow(lng_row)
this.object.ac_picname.border="0~tif(currentrow()=getrow(),6,0)"
else
this.modify("ac_picname.border='0'")
end if
this.modify("st_up.border='6'")
this.modify("st_down.border='6'")
str_object=getobjectatpointer()

错误信息：

error: c0051:unknow function name:getobjectatpointer
error: c0051:unknow function name:setrow
error: c0051:unknow function name:modify
error: c0051:unknow function name:modify
error: c0051:unknow function name:modify