XICHANGEHIERARCHY(3)													      XICHANGEHIERARCHY(3)

NAME

       XIChangeHierarchy - change the device hierarchy.

SYNOPSIS

       #include <X11/extensions/XInput2.h>

       Status XIChangeHierarchy( Display *display,
				 XIAnyHierarchyChangeInfo *changes,
				 int num_changes);

       display
	      Specifies the connection to the X server.

       num_changes
	      Specifies the number of elements in changes.

       changes
	      Specifies the changes to be made.

DESCRIPTION

	   XIChangeHierarchy modifies the device hierarchy by creating or
	   removing master devices or changing the attachment of slave
	   devices. If num_changes is non-zero, changes is an array of
	   XIAnyHierarchyChangeInfo structures. If num_changes is equal or less than
	   zero, XIChangeHierarchy does nothing.

	   XIChangeHierarchy processes changes in order, effective
	   immediately. If an error occurs, processing is aborted and the
	   error is reported to the client. Changes already made remain
	   effective.

	   The list of changes is any combination of
	   XIAnyHierarchyChangeInfo. The type of a hierarchy change can be
	   XIAddMaster, XIRemoveMaster, XIAttachSlave or XIDetachSlave.

	   typedef union {
	       int type;
	       XIAddMasterInfo add;
	       XIRemoveMasterInfo remove;
	       XIAttachSlave attach;
	       XIDetachSlave detach;
	   } XIAnyHierarchyChangeInfo;

	   typedef struct {
	       int type; /* XIAddMaster */
	       char* name;
	       Bool send_core;
	       Bool enable;
	   } XIAddMasterInfo;

	   typedef struct {
	       int type; /* XIRemoveMaster */
	       int deviceid;
	       int return_mode;
	       int return_pointer;
	       int return_keyboard;
	   } XIRemoveMasterInfo;

	   typedef struct {
	       int type; /* XIAttachSlave */
	       int deviceid;
	       int new_master;
	   } XIAttachSlaveInfo;

	   typedef struct {
	       int type; /* XIDetachSlave */
	       int deviceid;
	   } XIDetachSlaveInfo;

	   XIAddMasterInfo creates a new master pointer and a new
	   master keyboard labelled "name pointer" and "name keyboard"
	   respectively. If sendCore is True, the devices will send core
	   events. If enable is True, the device is enabled immediately.

	   XIAddMasterInfo can generate a BadValue error.

	   XIRemoveMasterInfo removes device and its paired master device.
	   If returnMode is XIAttachToMaster, all pointers attached to
	   device or its paired master device are attached to
	   returnPointer. Likewise, all keyboards are attached to
	   returnKeyboard. If returnMode is XIFloating, all attached
	   devices are set to floating.

	   XIRemoveMasterInfo can generate a BadValue and a BadDevice
	   error.

	   XIAttachSlaveInfo attaches device to newMaster. If the device
	   is currently attached to a master device, it is detached from
	   the master device and attached to the new master device.

	   XIAttachSlaveInfo can generate a BadDevice error.

	   XIDettachSlaveInfo deattaches device from the current master
	   device and sets it floating. If the device is already floating,
	   no changes are made.

	   XIDetachSlaveInfo can generate a BadDevice error.

	   XIChangeHierarchy generates an XIHierarchyEvent if any
	   modifications were successful.

DIAGNOSTICS

	   BadDevice
		  An invalid device was specified. The device does not
		  exist or is not a appropriate for the type of change.

	   BadValue
		  Some numeric value falls out of the allowed range.

								    05/15/2013						      XICHANGEHIERARCHY(3)