2012

Table Of Contents

Before you can use an AutoLISP application, it must first be loaded. You can

use the APPLOAD command or the AutoLISP load function to load an

application. Loading an AutoLISP application loads the AutoLISP code from

the LSP file into your system's memory.

Loading an application with the load function involves entering AutoLISP

code at the command prompt. If the load function is successful, it displays

the value of the last expression in the file at the command prompt. This is

usually the name of the last function defined in the file or instructions on

using the newly loaded function. If load fails, it returns an AutoLISP error

message. A load failure can be caused by incorrect coding in the file or by

entering the wrong file name at the command prompt. The syntax for the

load function is

(load

filename

[onfailure]

)

This syntax shows that the load function has two arguments: filename, which

is required, and onfailure, which is optional. When loading an AutoLISP file at

the command prompt, you typically supply only the filename argument. The

following example loads the AutoLISP file newfile.lsp.

Command: (load "newfile")

The .lsp extension is not required. This format works for any LSP file in the

current library path.

To load an AutoLISP file that is not in the library path, you must provide the

full path and file name as the filename argument.

Command: (load "/files/morelisp/newfile")

NOTE When specifying a directory path, you must use a slash (/) or two backslashes

(\\) as the separator, because a single backslash has a special meaning in AutoLISP.