# Clipboards user defined functions Reference

Below is a complete list of the user defined functions available in AutoIt. Click on a user defined function name for a detailed description.

When using them you need to add a #include <WinAPISys.au3>.

User Defined Function | Description
--- | ---
_WinAPI_AddClipboardFormatListener | Places the given window in the system-maintained clipboard format listener list
_WinAPI_GetClipboardSequenceNumber | Retrieves the clipboard sequence number for the current window station
_WinAPI_RemoveClipboardFormatListener | Removes the given window from the system-maintained clipboard format listener list