2011

Table Of Contents

This lets you associate the loading of the acad.lsp file with application startup,

and the acaddoc.lsp file with document (or drawing) startup. The default

method for loading these startup files can be modified by changing the setting

of the ACADLSPASDOC system variable.

If one of these files defines a function of the special type S::STARTUP, this

routine runs immediately after the drawing is fully initialized. The S::STARTUP

function is described in S::STARTUP Function: Postinitialization Execution on

page 446. As an alternative, the APPLOAD command provides a Startup Suite

option that loads the specified applications without the need to edit any files.

The acad.lsp and acaddoc.lsp startup files are not provided with AutoCAD. It

is up to the user to create and maintain these files.

Command Autoloader

When you automatically load a command using the load or command functions,

the command's definition takes up memory whether or not you actually use

the command. The AutoLISP autoload function makes a command available

without loading the entire routine into memory. Adding the following code

to your acaddoc.lsp file automatically loads the commands CMD1, CMD2, and

CMD3 from the cmds.lsp file and the NEWCMD command from the newcmd.lsp

file.

(autoload "CMDS" '("CMD1" "CMD2" "CMD3"))

(autoload "NEWCMD" '("NEWCMD"))

The first time you enter an automatically loaded command at the command

prompt, AutoLISP loads the entire command definition from the associated

file. AutoLISP also provides the autoarxload function for ObjectARX

applications. See autoload and autoarxload in the AutoLISP Reference in the

Help system. To display Developer Help, on the InfoCenter toolbar, to the

right of the Help button, click the drop-down arrow. From the menu, click

Additional Resources ➤ Developer Help.

NOTE Like-named AutoLISP startup files are loaded based on their Modified time

stamp; the LSP file with the most recent time stamp is loaded unless you specify

the full file name (including the file name extension).