Manual Pages for UNIX Operating System command usage for man XkbNoteDeviceChanges

XKB FUNCTIONS                          XkbNoteDeviceChanges(3x11)



NAME
     XkbNoteDeviceChanges - Note device changes  reported  in  an
     XkbExtensionDeviceNotify event

SYNOPSIS
     cc [ flag... ] file... -lX11 [ library... ]

     void XkbNoteDeviceChanges (XkbDeviceChangesPtr  old,  XkbEx-
          tensionDeviceNotifyEvent *new, unsigned int wanted);

ARGUMENTS
     - old
          structure tracking state changes

     - new
          event indicating state changes

     - wanted
          mask indicating changes to note

DESCRIPTION
     The wanted field specifies the changes that should be  noted
     in  old,  and is composed of the bitwise inclusive OR of one
     or more of the masks from Table 1. The reason field  of  the
     event  in  new  indicates  the types of changes the event is
     reporting.   XkbNoteDeviceChanges   updates   the   XkbDevi-
     ceChangesRec specified by old with the changes that are both
     specified in wanted and contained in new->reason.

                              Table 1 XkbDeviceInfoRec Mask Bits
     ____________________________________________________________________________________
     Name                         XkbDeviceInfoRec Value     Capability If Set
                                  Fields Effected
     ____________________________________________________________________________________
     XkbXI_KeyboardsMask                           (1L <<0) Clients can use all
                                                            Xkb requests and events
                                                            with KeyClass devices
                                                            supported by the input
                                                            device extension.

     XkbXI_ButtonActionsMask       num_btns        (1L <<1) Clients can assign key
                                   btn_acts                 actions to buttons
                                                            non-KeyClass input
                                                            extension devices.

     XkbXI_IndicatorNamesMask      leds->names     (1L <<2) Clients can assign
                                                            names to indicators on
                                                            non-KeyClass input
                                                            extension devices.

     XkbXI_IndicatorMapsMask       leds->maps      (1L <<3) Clients can assign
                                                            indicator maps to



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XKB FUNCTIONS                          XkbNoteDeviceChanges(3x11)



                                                            indicators on
                                                            non-KeyClass input
                                                            extension devices.

     XkbXI_IndicatorStateMask      leds->state     (1L <<4) Clients can request
                                                            the status of indicators
                                                            on non-KeyClass input
                                                            extension devices.

     XkbXI_IndicatorsMask          sz_leds         (0x1c)   XkbXI_IndicatorNamesMask |
                                   num_leds                 XkbXI_IndicatorMapsMask |
                                   leds->*                  XkbXI_IndicatorStateMask

     XkbXI_UnsupportedFeaturesMask unsupported     (1L <<15)

     XkbXI_AllDeviceFeaturesMask   Those selected  (0x1e)   XkbXI_IndicatorsMask |
                                   by Value Column          XkbSI_ButtonActionsMask
                                   masks

     XkbXI_AllFeaturesMask         Those selected  (0x1f)   XkbSI_AllDeviceFeaturesMask |
                                   by Value Column          XkbSI_KeyboardsMask
                                   masks

     XkbXI_AllDetailsMask          Those selected  (0x801f) XkbXI_AllFeaturesMask |
                                   by Value column          XkbXI_UnsupportedFeaturesMask
                                   masks

     To update a local copy of the state and configuration of  an
     X  input  extension device with the changes previously noted
     in an  XkbDeviceChangesRec  structure,  use  XkbGetDeviceIn-
     foChanges.

STRUCTURES
     Changes to an Xkb extension device may be tracked by listen-
     ing  to XkbDeviceExtensionNotify events and accumulating the
     changes in an  XkbDeviceChangesRec  structure.  The  changes
     noted in the structure may then be used in subsequent opera-
     tions to update either a server  configuration  or  a  local
     copy  of  an Xkb extension device configuration. The changes
     structure is defined as follows:

     typedef struct _XkbDeviceChanges {
         unsigned int         changed;       /* bits indicating what has changed */
         unsigned short       first_btn;     /* number of first button which changed, if any */
         unsigned short       num_btns;      /* number of buttons that have changed */
         XkbDeviceLedChangesRec leds;
     } XkbDeviceChangesRec,*XkbDeviceChangesPtr;


SEE ALSO
     XkbGetDeviceInfoChanges(3x11)




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XKB FUNCTIONS                          XkbNoteDeviceChanges(3x11)



ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | x11/library/libx11          |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | See XInitThreads(3X11)      |
    |_____________________________|_____________________________|










































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