XkbAllocDeviceInfo(3) - phpMan

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XkbAllocDeviceInfo(3)                     XKB FUNCTIONS                     XkbAllocDeviceInfo(3)



NAME
       XkbAllocDeviceInfo - Obtain an XkbDeviceInfoRec structure

SYNOPSIS
       XkbDeviceInfoPtr XkbAllocDeviceInfo ( device_spec, n_buttons, sz_leds )
             unsigned int device_spec;
             unsigned int n_buttons;
             unsigned int sz_leds;

ARGUMENTS
       - device_spec
              device ID with which structure will be used

       - n_buttons
              number of button actions to allocate space for

       - sz_leds
              number of LED feedbacks to allocate space for

DESCRIPTION
       XkbAllocDeviceInfo  allocates space for an XkbDeviceInfoRec structure and initializes that
       structure's device_spec field with the device ID specified by device_spec.   If  n_buttons
       is  nonzero,  n_buttons XkbActions are linked into the XkbDeviceInfoRec structure and ini-
       tialized to zero. If sz_leds is nonzero, sz_leds XkbDeviceLedInfoRec structures  are  also
       allocated  and  linked into the XkbDeviceInfoRec structure. If you request XkbDeviceLedIn-
       foRec structures be allocated using this request, you must initialize them explicitly.

       To obtain an XkbDeviceLedInfoRec structure, use XkbAllocDeviceLedInfo.

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;

SEE ALSO
       XkbAllocDeviceLedInfo(3)



X Version 11                               libX11 1.1.5                     XkbAllocDeviceInfo(3)

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