xkbgetdeviceinfochanges(3) [x11r4 man page]

XkbGetDeviceInfoChanges(3)					   XKB FUNCTIONS					XkbGetDeviceInfoChanges(3)

NAME

       XkbGetDeviceInfoChanges	- Query the changes that have occurred in the button actions or indicator names and indicator maps associated with
       an input extension device

SYNOPSIS

       Status XkbGetDeviceInfoChanges ( dpy, device_info, changes )
	     Display * dpy;
	     XkbDeviceInfoPtr device_info;
	     XkbDeviceChangesPtr changes;

ARGUMENTS

       - dpy  connection to X server

       - device_info
	      structure to update with results

       - changes
	      contains notes of changes that have occurred

DESCRIPTION

       The changes->changed field indicates which attributes of the device specified in changes->device have changed.  The  parameters	describing
       the  changes are contained in the other fields of changes. XkbGetDeviceInfoChanges uses that information to call XkbGetDeviceInfo to obtain
       the current status of those attributes that have changed. It then updates the local description of the device in device_info with  the  new
       information.

SEE ALSO

       XkbGetDeviceInfo(3)

X Version 11							   libX11 1.2.1 					XkbGetDeviceInfoChanges(3)

XkbChangeDeviceInfo(3)						   XKB FUNCTIONS					    XkbChangeDeviceInfo(3)

NAME

       XkbChangeDeviceInfo - Update the server's description of a device with the changes noted in an XkbDeviceChangesRec

SYNOPSIS

       Bool XkbChangeDeviceInfo (Display *dpy, XkbDeviceInfoPtr device_info, XkbDeviceChangesPtr changes);

ARGUMENTS

       - dpy  connection to X server

       - device_info
	      local copy of device state and configuration

       - changes
	      note specifying changes in device_info

DESCRIPTION

       XkbChangeDeviceInfo  updates  the  server's  description  of the device specified in device_info->device_spec with the changes specified in
       changes and contained in device_info.  The update is made by an XkbSetDeviceInfo request.

STRUCTURES

       Changes to an Xkb extension device may be tracked by listening to XkbDeviceExtensionNotify events and accumulating the changes in an XkbDe-
       viceChangesRec structure. The changes noted in the structure may then be used in subsequent operations to update either a server configura-
       tion 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

       XkbSetDeviceInfo(3)

X Version 11							   libX11 1.3.2 					    XkbChangeDeviceInfo(3)