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XkbFreeDeviceInfo(3)             XKB FUNCTIONS            XkbFreeDeviceInfo(3)



NAME
       XkbFreeDeviceInfo - Free an XkbDeviceInfoRec structure

SYNOPSIS
       void XkbFreeDeviceInfo ( device_info, which, free_all )
             XkbDeviceInfoPtr device_info;
             unsigned int which;
             Bool free_all;

ARGUMENTS
       - device_info
              pointer to XkbDeviceInfoRec in which to free items

       - which
              mask of components of device_info to free

       - free_all
              True => free everything, including device_info

DESCRIPTION
       If  free_all  is  True,  the  XkbFreeDeviceInfo frees all components of
       device_info  and  the  XkbDeviceInfoRec   structure   pointed   to   by
       device_info itself. If free_all is False, the value of which determines
       which subcomponents are freed.  which is an inclusive OR of one or more
       of  the values from Table 1. If which contains XkbXI_ButtonActionsMask,
       all   button   actions   associated   with   device_info   are   freed,
       device_info->btn_acts  is set to NULL, and device_info->num_btns is set
       to zero. If which contains all bits in XkbXI_IndicatorsMask, all XkbDe-
       viceLedInfoRec   structures  associated  with  device_info  are  freed,
       device_info->leds  is  set  to  NULL,  and   device_info->sz_leds   and
       device_info->num_leds  are set to zero. If which contains XkbXI_Indica-
       torMapsMask,  all  indicator  maps  associated  with  device_info   are
       cleared,  but  the number of LEDs and the leds structures themselves is
       preserved. If which contains  XkbXI_IndicatorNamesMask,  all  indicator
       names  associated  with device_info are cleared, but the number of LEDs
       and the leds structures themselves  is  preserved.  If  which  contains
       XkbXI_IndicatorStateMask,  the  indicator  state  associated  with  the
       device_info leds are set to zeros but the number of LEDs and  the  leds
       structures themselves is preserved.
                                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
                                                              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

STRUCTURES
       Information  about  X  Input Extension devices is transferred between a
       client program and the Xkb extension in an XkbDeviceInfoRec structure:

       typedef struct {
           char *               name;          /* name for device */
           Atom                 type;          /* name for class of devices */
           unsigned short       device_spec;   /* device of interest */
           Bool                 has_own_state; /* True=>this device has its own state */
           unsigned short       supported;     /* bits indicating supported capabilities */
           unsigned short       unsupported;   /* bits indicating unsupported capabilities */
           unsigned short       num_btns;      /* number of entries in btn_acts */
           XkbAction *          btn_acts;      /* button actions */
           unsigned short       sz_leds;       /* total number of entries in LEDs vector */
           unsigned short       num_leds;      /* number of valid entries in LEDs vector */
           unsigned short       dflt_kbd_fb;   /* input extension ID of default (core kbd) indicator */
           unsigned short       dflt_led_fb;   /* input extension ID of default indicator feedback */
           XkbDeviceLedInfoPtr  leds;          /* LED descriptions */
       } XkbDeviceInfoRec, *XkbDeviceInfoPtr;

       typedef struct {
           unsigned short      led_class;        /* class for this LED device*/
           unsigned short      led_id;           /* ID for this LED device */
           unsigned int        phys_indicators;  /* bits for which LEDs physically present */
           unsigned int        maps_present;     /* bits for which LEDs have maps in maps */
           unsigned int        names_present;    /* bits for which LEDs are in names */
           unsigned int        state;            /* 1 bit => corresponding LED is on */
           Atom                names[XkbNumIndicators];   /* names for LEDs */
           XkbIndicatorMapRec  maps;             /* indicator maps for each LED */
       } XkbDeviceLedInfoRec, *XkbDeviceLedInfoPtr;




X Version 11                     libX11 1.1.5             XkbFreeDeviceInfo(3)