# User Raw Input 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_DefRawInputProc | Calls the default raw input procedure to process the raw input messages that an application does not process
_WinAPI_EnumRawInputDevices | Enumerates the raw input devices attached to the system
_WinAPI_GetRawInputBuffer | Performs a buffered read of the raw input data
_WinAPI_GetRawInputBufferLength | Retrieves the required buffer size to call the _WinAPI_GetRawInputBuffer() function
_WinAPI_GetRawInputData | Retrieves the raw input from the specified device
_WinAPI_GetRawInputDeviceInfo | Retrieves information about the raw input device
_WinAPI_GetRegisteredRawInputDevices | Retrieves the information about the raw input devices for the current application
_WinAPI_RegisterRawInputDevices | Registers the devices that supply the raw input data