S Functions Reference (AutoLISP)

These AutoLISP functions all start with 'S'.

Functions

• set

  Sets the value of a quoted symbol name to an expression

• set_tile

  Sets the value of a dialog box tile

• setcfg

  Writes application data to the AppData section of the acad20xx.cfg file

• setenv

  Sets a system environment variable to a specified value

• setfunhelp

  Registers a user-defined command with the Help facility so the appropriate Help file and topic are called when the user requests help on that command

• setpropertyvalue

  Sets the property value for an entity

• setq

  Sets the value of a symbol or symbols to associated expressions

• setvar

  Sets an AutoCAD system variable to a specified value

• setview

  Establishes a view for a specified viewport

• showhtmlmodalwindow

  Displays a modal dialog box with a specified URI (Uniform Resource Identifier)

• sin

  Returns the sine of an angle as a real number expressed in radians

• slide_image

  Displays an AutoCAD slide in the currently active dialog box image tile

• snvalid

  Checks the symbol table name for valid characters

• sqrt

  Returns the square root of a number as a real number

• ssadd

  Adds an object (entity) to a selection set, or creates a new selection set

• ssdel

  Deletes an object (entity) from a selection set

• ssget

  Creates a selection set from the selected object

• ssgetfirst

  Determines which objects are selected and gripped

• sslength

  Returns an integer containing the number of objects (entities) in a selection set

• ssmemb

  Tests whether an object (entity) is a member of a selection set

• ssname

  Returns the object (entity) name of the indexed element of a selection set

• ssnamex

  Retrieves information about how a selection set was created

• sssetfirst

  Sets which objects are selected and gripped

• start_dialog

  Displays a dialog box and begins accepting user input

• start_image

  Starts the creation of an image in the dialog box tile

• start_list

  Starts the processing of a list in the list box or in the pop-up list dialog box tile

• startapp

  Starts an external application

• strcase

  Returns a string where all alphabetic characters have been converted to uppercase or lowercase

• strcat

  Returns a string that is the concatenation of multiple strings

• strlen

  Returns an integer that is the number of characters in a string

• subst

  Searches a list for an old item and returns a copy of the list with a new item substituted in place of every occurrence of the old item

• substr

  Returns a substring of a string