Man page 3 : XkbResizeDeviceButtonActions

XkbResizeDeviceButtonActions - Allocate additional space for button actions in an XkbDeviceInfoRec structure

Status XkbResizeDeviceButtonActions (XkbDeviceInfoPtr device_info , unsigned int new_total );

• - device_info
      structure in which to allocate button actions
• - new_total
      new total number of button actions needed

XkbResizeDeviceButtonActionsreallocates space, if necessary, to make sure there is room for a total of new_totalbutton actions in the device_infostructure. Any new entries allocated are zeroed. If successful, XkbResizeDeviceButtonActionsreturns Success. If new_totalis zero, all button actions are deleted, device_info->num_btnsis set to zero, and device_info->btn_actsis set to NULL. If device_infois invalid or new_totalis greater than 255, BadValue is returned. If a memory allocation failure occurs, a BadAlloc is returned. To free an XkbDeviceInfoRec structure, use XkbFreeDeviceInfo.

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;

BadAlloc

               Unable to allocate storage

BadValue

               An argument is out of range

R XkbFreeDeviceInfo (3)