Return values for user-input functions [/td][td]
Code[/td]
[td]
Description[/td]
RTNORM
User entered a valid value
RTERROR
The function call failed
RTCAN
User entered ESC
RTNONE
User entered only ENTER
RTREJ
AutoCAD rejected the request as invalid
RTKWORD
User entered a keyword or arbitrary text
置顶卡
