Autolisp In Autocad May 2026

The fundamental rule of AutoLISP is that every statement must be enclosed in parentheses. This structure is known as an S-expression (symbolic expression).

: To create a custom command that can be typed into the AutoCAD command line, use the defun function with a C: prefix. For instance, (defun C:HELLO () (prompt "\nHello World!")) defines a new command called HELLO . AutoLISP in AutoCAD

: Functions like getpoint , getreal , and getstring pause the routine to ask the user for specific data. The fundamental rule of AutoLISP is that every

: The (command ...) function allows a routine to execute standard AutoCAD commands just as a user would type them. AutoLISP in AutoCAD