XkbGetDeviceButtonActions - Query the button actions associated with an X Input Extension device

dpy    connection to X server

       device_info
              structure to update with results

       all_buttons
              True => get information for all buttons

       first_button
              number of first button for which info is desired

       num_buttons
              number of buttons for which info is desired

XkbGetDeviceButtonActions queries the server for the desired button information for the device  indicated
       by  the  device_spec field of device_info and waits for a reply. If successful, XkbGetDeviceButtonActions
       backfills the button actions (btn_acts field of device_info) for only the requested buttons, updates  the
       name,type,supported, and unsupported fields, and returns Success.

       all_buttons,first_button  and  num_buttons  specify  the  device  buttons  for  which actions should be
       returned. Setting all_buttons to True requests actions for all device buttons; if all_buttons  is  False,
       first_button and num_buttons specify a range of buttons for which actions are requested.

       If  a compatible version of Xkb is not available in the server or the Xkb extension has not been properly
       initialized, XkbGetDeviceButtonActions returns BadAccess. If allocation errors occur, a  BadAlloc  status
       is  returned.  If  the  specified  device  (device_info->device_spec) is invalid, a BadKeyboard status is
       returned. If the device has no buttons, a BadMatch status is returned. If  first_button  and  num_buttons
       specify illegal buttons, a BadValue status is returned.

BadAccess      The Xkb extension has not been properly initialized

       BadAlloc       Unable to allocate storage

       BadKeyboard    The device specified was not a valid core or input extension device

       BadMatch       A  compatible  version  of  Xkb was not available in the server or an argument has correct
                      type and range, but is otherwise invalid

       BadValue       An argument is out of range

X Version 11                                      libX11 1.8.12                     XkbGetDeviceButtonActions(3)

       XkbGetDeviceButtonActions - Query the button actions associated with an X Input Extension device

StatusXkbGetDeviceButtonActions(Display*dpy,XkbDeviceInfoPtrdevice_info,Boolall_buttons,unsignedintfirst_button,unsignedintnum_buttons);