Below is a complete list of the functions available in AutoIt. Click on a function name for a detailed description.
| Function | Description |
| Abs | Calculates the absolute value of a number. |
| ACos | Calculates the arcCosine of a number. |
| AdlibDisable | Disables the adlib functionality. |
| AdlibEnable | Enables Adlib functionality. |
| Asc | Returns the ASCII code of a character. |
| ASin | Calculates the arcsine of a number. |
| Assign | Assigns a variable by name with the data. |
| ATan | Calculates the arctangent of a number. |
| AutoItSetOption | Changes the operation of various AutoIt functions/parameters. |
| AutoItWinGetTitle | Retrieves the title of the AutoIt window. |
| AutoItWinSetTitle | Changes the title of the AutoIt window. |
| BitAND | Performs a bitwise AND operation. |
| BitNOT | Performs a bitwise NOT operation. |
| BitOR | Performs a bitwise OR operation. |
| BitShift | Performs a bit shifting operation. |
| BitXOR | Performs a bitwise exclusive OR (XOR) operation. |
| BlockInput | Disable/enable the mouse and keyboard. |
| Break | Enables or disables the users' ability to exit a script from the tray icon menu. |
| Call | Calls a user-defined function contained in a string parameter. |
| CDTray | Opens or closes the CD tray. |
| Chr | Returns a character corresponding to an ASCII code. |
| ClipGet | Retrieves text from the clipboard. |
| ClipPut | Writes text to the clipboard. |
| ConsoleWrite | Writes data to a stream that text editors can sometimes read. |
| ControlClick | Sends a mouse click command to a given control. |
| ControlCommand | Sends a command to a control. |
| ControlDisable | Disables or "grays-out" a control. |
| ControlEnable | Enables a "grayed-out" control. |
| ControlFocus | Sets input focus to a given control on a window. |
| ControlGetFocus | Returns the ControlRef# of the control that has keyboard focus within a specified window. |
| ControlGetHandle | Retrieves the internal handle of a control. |
| ControlGetPos | Retrieves the position and size of a control relative to it's window. |
| ControlGetText | Retrieves text from a control. |
| ControlHide | Hides a control. |
| ControlListView | Sends a command to a ListView32 control. |
| ControlMove | Moves a control within a window. |
| ControlSend | Sends a string of characters to a control. |
| ControlSetText | Sets text of a control. |
| ControlShow | Shows a control that was hidden. |
| Cos | Calculates the cosine of a number. |
| Dec | Returns a numeric representation of a hexadecimal string. |
| DirCopy | Copies a directory and all sub-directories and files (Similar to xcopy). |
| DirCreate | Creates a directory/folder. |
| DirGetSize | Returns the size in bytes of a given directory. |
| DirMove | Moves a directory and all sub-directories and files. |
| DirRemove | Deletes a directory/folder. |
| DllCall | Dynamically calls a function in a DLL. |
| DllClose | Closes a previously opened DLL. |
| DllOpen | Opens a dll file for use in DllCall. |
| DriveGetDrive | Returns an array containing the enumerated drives. |
| DriveGetFileSystem | Returns File System Type of a drive. |
| DriveGetLabel | Returns Volume Label of a drive, if it has one. |
| DriveGetSerial | Returns Serial Number of a drive. |
| DriveGetType | Returns drive type. |
| DriveMapAdd | Maps a network drive. |
| DriveMapDel | Disconnects a network drive. |
| DriveMapGet | Retreives the details of a mapped drive. |
| DriveSetLabel | Sets the Volume Label of a drive. |
| DriveSpaceFree | Returns the free disk space of a path in Megabytes. |
| DriveSpaceTotal | Returns the total diskspace of a path in Megabytes. |
| DriveStatus | Returns the status of the drive as a string. |
| EnvGet | Retrieves an environment variable. |
| EnvSet | Writes an environment variable. |
| EnvUpdate | Refreshes the OS environment. |
| Eval | Return the value of the variable whose name is given by the expression. |
| Exp | Calculates e to the power of a number. |
| FileChangeDir | Changes the current working directory. |
| FileClose | Closes a previously opened text file. |
| FileCopy | Copies one or more files. |
| FileCreateShortcut | Creates a shortcut (.lnk) to a file. |
| FileDelete | Delete one or more files. |
| FileExists | Checks if a file or directory exists. |
| FileFindFirstFile | Returns a filename according to search string. |
| FileFindNextFile | Returns a filename according to a previous call to FileFindFirstFile. |
| FileGetAttrib | Returns a code string representing a file's attributes. |
| FileGetLongName | Returns the long path+name of the path+name passed. |
| FileGetShortcut | Retrieves details about a shortcut. |
| FileGetShortName | Returns the 8.3 short path+name of the path+name passed. |
| FileGetSize | Returns the size of a file in bytes. |
| FileGetTime | Returns the time and date information for a file. |
| FileGetVersion | Returns the "File" version information. |
| FileInstall | Include and install a file with the compiled script. |
| FileMove | Moves one or more files |
| FileOpen | Opens a text file for reading or writing. |
| FileOpenDialog | Initiates a Open File Dialog. |
| FileRead | Read in a number of characters from a previously opened text file. |
| FileReadLine | Read in a line of text from a previously opened text file. |
| FileRecycle | Sends a file or directory to the recycle bin. |
| FileRecycleEmpty | Empties the recycle bin. |
| FileSaveDialog | Initiates a Save File Dialog. |
| FileSelectFolder | Initiates a Browse For Folder GUI. |
| FileSetAttrib | Sets the attributes of one or more files. |
| FileSetTime | Sets the timestamp of one of more files. |
| FileWrite | Append a line of text to the end of a previously opened text file. |
| FileWriteLine | Append a line of text to the end of a previously opened text file. |
| FtpSetProxy | Sets the internet proxy to use for ftp access. |
| GUICreate | Create a GUI window. |
| GUICtrlCreateAvi | Creates an AVI video control for the GUI. |
| GUICtrlCreateButton | Creates a Button control for the GUI. |
| GUICtrlCreateCheckbox | Creates a Checkbox control for the GUI. |
| GUICtrlCreateCombo | Creates a ComboBox control for the GUI. |
| GUICtrlCreateContextMenu | Creates a context menu for a control or entire GUI window. |
| GUICtrlCreateDate | Creates a date control for the GUI. |
| GUICtrlCreateDummy | Creates a Dummy control for the GUI. |
| GUICtrlCreateEdit | Creates an Edit control for the GUI. |
| GUICtrlCreateGroup | Creates a Group control for the GUI. |
| GUICtrlCreateIcon | Creates an Icon control for the GUI. |
| GUICtrlCreateInput | Creates an Input control for the GUI. |
| GUICtrlCreateLabel | Creates a static Label control for the GUI. |
| GUICtrlCreateList | Creates a List control for the GUI. |
| GUICtrlCreateListView | Creates a ListView control for the GUI. |
| GUICtrlCreateListViewItem | Creates a ListView item. |
| GUICtrlCreateMenu | Creates a Menu control for the GUI. |
| GUICtrlCreateMenuitem | Creates a MenuItem control for the GUI. |
| GUICtrlCreatePic | Creates a Picture control for the GUI. |
| GUICtrlCreateProgress | Creates a Progress control for the GUI. |
| GUICtrlCreateRadio | Creates a Radio button control for the GUI. |
| GUICtrlCreateSlider | Creates a Slider control for the GUI. |
| GUICtrlCreateTab | Creates a Tab control for the GUI. |
| GUICtrlCreateTabItem | Creates a TabItem control for the GUI. |
| GUICtrlCreateTreeView | Creates a TreeView control for the GUI. |
| GUICtrlCreateTreeViewItem | Creates a TreeViewItem control for the GUI. |
| GUICtrlCreateUpdown | Creates an UpDown control for the GUI. |
| GUICtrlDelete | Deletes a control. |
| GUICtrlGetState | Gets the current state of a control |
| GUICtrlRead | Read state or data of a control. |
| GUICtrlRecvMsg | Send a message to a control and retrieve information in lParam. |
| GUICtrlSendMsg | Send a message to a control. |
| GUICtrlSendToDummy | Sends a message to a Dummy control. |
| GUICtrlSetBkColor | Sets the background color of a control. |
| GUICtrlSetColor | Sets the text color of a control. |
| GUICtrlSetCursor | Sets mouse cursor icon for a particular control. |
| GUICtrlSetData | Modifies the data for a control. |
| GUICtrlSetFont | Sets the font for a control. |
| GUICtrlSetImage | Sets the bitmap or icon image to use for a control. |
| GUICtrlSetLimit | Limits the number of characters/pixels for a control. |
| GUICtrlSetOnEvent | Defines a user-defined function to be called when a control is clicked. |
| GUICtrlSetPos | Changes the position of a control within the GUI window. |
| GUICtrlSetResizing | Defines the resizing method used by a control. |
| GUICtrlSetState | Changes the state of a control. |
| GUICtrlSetStyle | Changes the style of a control. |
| GUICtrlSetTip | Sets the tip text associated with a control. |
| GUIDelete | Deletes a GUI window and all controls that it contains. |
| GUIGetCursorInfo | Gets the mouse cursor position relative to GUI window. |
| GUIGetMsg | Polls the GUI to see if any events have ocurred. |
| GUISetBkColor | Sets the background color of the GUI window. |
| GUISetCoord | Sets absolute coordinates for next control. |
| GUISetCursor | Sets the mouse cursor icon for a GUI window. |
| GUISetFont | Sets the default font for a GUI window. |
| GUISetHelp | Sets an executable file that will be run when F1 is pressed. |
| GUISetIcon | Sets the icon used in a GUI window. |
| GUISetOnEvent | Defines a user function to be called when a control is clicked. |
| GUISetState | Changes the state of a GUI window. |
| GUIStartGroup | Defines that any subsequent controls that are created will be "grouped" together. |
| GUISwitch | Switches the current window used for GUI functions. |
| Hex | Returns a string representation of an integer converted to hexadecimal. |
| HotKeySet | Sets a hotkey that calls a user function. |
| HttpSetProxy | Sets the internet proxy to use for http access. |
| InetGet | Downloads a file from the internet using the http or ftp protocol. |
| InetGetSize | Returns the size (in bytes) of a file located on the internet. |
| IniDelete | Deletes a value from a standard format .ini file. |
| IniRead | Reads a value from a standard format .ini file. |
| IniReadSection | Reads all key/value pairs from a section in a standard format .ini file. |
| IniReadSectionNames | Reads all sections in a standard format .ini file. |
| IniWrite | Writes a value to a standard format .ini file. |
| InputBox | Displays an input box to ask the user to enter a string. |
| Int | Returns the integer (whole number) representation of an expression. |
| IsAdmin | Checks if the current user has administrator privileges. |
| IsArray | Checks if a variable is an array type. |
| IsDeclared | Check if a variable has been declared. |
| IsFloat | Checks if a variable or expression is a float-type. |
| IsInt | Checks if a variable or expression is an integer type. |
| IsNumber | Checks if a variable's base type is numeric. |
| IsString | Checks if a variable is a string type. |
| Log | Calculates the natural logarithm of a number. |
| MemGetStats | Retrieves memory related information. |
| Mod | Performs the modulus operation. |
| MouseClick | Perform a mouse click operation. |
| MouseClickDrag | Perform a mouse click and drag operation. |
| MouseDown | Perform a mouse down event at the current mouse position. |
| MouseGetCursor | Returns a cursor ID Number of the current Mouse Cursor. |
| MouseGetPos | Retrieves the current position of the mouse cursor. |
| MouseMove | Moves the mouse pointer. |
| MouseUp | Perform a mouse up event at the current mouse position. |
| MouseWheel | Moves the mouse wheel up or down. NT/2000/XP ONLY. |
| MsgBox | Displays a simple message box with optional timeout. |
| Number | Returns the numeric representation of an expression. |
| Ping | Pings a host and returns the roundtrip-time. |
| PixelChecksum | Generates a checksum for a region of pixels. |
| PixelGetColor | Returns a pixel color according to x,y pixel coordinates. |
| PixelSearch | Searches a rectangle of pixels for the pixel color provided. |
| ProcessClose | Terminates a named process. |
| ProcessExists | Checks to see if a specified process exists. |
| ProcessList | Returns an array listing the currently running processes (names and PIDs). |
| ProcessSetPriority | Changes the priority of a process |
| ProcessWait | Pauses script execution until a given process exists. |
| ProcessWaitClose | Pauses script execution until a given process does not exist. |
| ProgressOff | Turns Progress window off. |
| ProgressOn | Creates a customizable progress bar window. |
| ProgressSet | Sets the position and/or text of a previously created Progress bar window. |
| Random | Generates a pseudo-random float-type number. |
| RegDelete | Deletes a key or value from the registry. |
| RegEnumKey | Reads the name of a subkey according to it's instance. |
| RegEnumVal | Reads the name of a value according to it's instance. |
| RegRead | Reads a value from the registry. |
| RegWrite | Creates a key or value in the registry. |
| Round | Returns a number rounded to a specified number of decimal places. |
| Run | Runs an external program. |
| RunAsSet | Initialise a set of user credentials to use during Run and RunWait operations. 2000/XP or later ONLY. |
| RunWait | Runs an external program and pauses script execution until the program finishes. |
| Send | Sends simulated keystrokes to the active window. |
| SetError | Manually set the value of the @error macro. |
| SetExtended | Manually set the value of the @extended macro. |
| Shutdown | Shuts down the system. |
| Sin | Calculates the sine of a number. |
| Sleep | Pause script execution. |
| SoundPlay | Play a sound file. |
| SoundSetWaveVolume | Sets the system wave volume by percent. |
| SplashImageOn | Creates a customizable image popup window. |
| SplashOff | Turns SplashText or SplashImage off. |
| SplashTextOn | Creates a customizable text popup window. |
| Sqrt | Calculates the square-root of a number. |
| StatusbarGetText | Retrieves the text from a standard status bar control. |
| String | Returns the string representation of an expression. |
| StringAddCR | Takes a string and prefixes all linefeed characters ( Chr(10) ) with a carriage return character ( Chr(13) ). |
| StringFormat | Returns a formatted string (similar to the C sprintf() function). |
| StringInStr | Checks if a string contains a given substring. |
| StringIsAlNum | Checks if a string contains only alphanumeric characters. |
| StringIsAlpha | Checks if a string contains only alphabetic characters. |
| StringIsASCII | Checks if a string contains only ASCII characters in the range 0x00 - 0x7f (0 - 127). |
| StringIsDigit | Checks if a string contains only digit (0-9) characters. |
| StringIsFloat | Checks if a string is a floating point number. |
| StringIsInt | Checks if a string is an integer. |
| StringIsLower | Checks if a string contains only lowercase characters. |
| StringIsSpace | Checks if a string contains only whitespace characters. |
| StringIsUpper | Checks if a string contains only uppercase characters. |
| StringIsXDigit | Checks if a string contains only hexadecimal digit (0-9, A-F) characters. |
| StringLeft | Returns a number of characters from the left-hand side of a string. |
| StringLen | Returns the number of characters in a string. |
| StringLower | Converts a string to lowercase. |
| StringMid | Extracts a number of characters from a string. |
| StringReplace | Replaces substrings in a string. |
| StringRight | Returns a number of characters from the right-hand side of a string. |
| StringSplit | Splits up a string into substrings depending on the given delimiters. |
| StringStripCR | Removes all carriage return values ( Chr(13) ) from a string. |
| StringStripWS | Strips the white space in a string. |
| StringTrimLeft | Trims a number of characters from the left hand side of a string. |
| StringTrimRight | Trims a number of characters from the right hand side of a string. |
| StringUpper | Converts a string to uppercase. |
| Tan | Calculates the tangent of a number. |
| TimerDiff | Returns a difference in time from a previous call to TimerInit(). |
| TimerInit | Returns a timestamp (in milliseconds). |
| ToolTip | Creates a tooltip anywhere on the screen. |
| TrayTip | Displays a balloon tip from the AuotIt Icon. (2000/XP only) |
| UBound | Returns the size of array dimensions. |
| WinActivate | Activates (gives focus to) a window. |
| WinActive | Checks to see if a specified window exists and is currently active. |
| WinClose | Closes a window. |
| WinExists | Checks to see if a specified window exists. |
| WinGetCaretPos | Returns the coordinates of the caret in the foreground window |
| WinGetClassList | Retrieves the classes from a window. |
| WinGetClientSize | Retrieves the size of a given window's client area. |
| WinGetHandle | Retrieves the internal handle of a window. |
| WinGetPos | Retrieves the position and size of a given window. |
| WinGetProcess | Retrieves the Process ID (PID) associated with a window. |
| WinGetState | Retrieves the state of a given window. |
| WinGetText | Retrieves the text from a window. |
| WinGetTitle | Retrieves the full title from a window. |
| WinKill | Forces a window to close. |
| WinList | Retrieves a list of windows. |
| WinMenuSelectItem | Invokes a menu item of a window. |
| WinMinimizeAll | Minimizes all windows. |
| WinMinimizeAllUndo | Undoes a previous WinMinimizeAll function. |
| WinMove | Moves and/or resizes a window. |
| WinSetOnTop | Change a window's "Always On Top" attribute. |
| WinSetState | Shows, hides, minimizes, maximizes, or restores a window. |
| WinSetTitle | Changes the title of a window. |
| WinSetTrans | Sets the transparency of a window. (Windows 2000/XP or later) |
| WinWait | Pauses execution of the script until the requested window exists. |
| WinWaitActive | Pauses execution of the script until the requested window is active. |
| WinWaitClose | Pauses execution of the script until the requested window does not exist. |
| WinWaitNotActive | Pauses execution of the script until the requested window is not active. |