xtbuildeventmask(3xt) [osf1 man page]

XtBuildEventMask(3Xt)													     XtBuildEventMask(3Xt)

NAME

       XtBuildEventMask - retrieve a widget's event mask

SYNOPSIS

       EventMask XtBuildEventMask(w)
	       Widget w;

ARGUMENTS

       Specifies the widget.

DESCRIPTION

       The  XtBuildEventMask  function	returns the event mask representing the logical OR of all event masks for event handlers registered on the
       widget with XtAddEventHandler and all event translations, including accelerators, installed on the widget. This	is  the  same  event  mask
       stored into the XSetWindowAttributes structure by XtRealizeWidget and sent to the server when event handlers and translations are installed
       or removed on the realized widget.

SEE ALSO

       XtAddEventHandler(3Xt)

       X Toolkit Intrinsics -- C Language Interface

       Xlib -- C Language X Interface

															     XtBuildEventMask(3Xt)

XtAddEventHandler(3Xt)						   XT FUNCTIONS 					    XtAddEventHandler(3Xt)

NAME

       XtAddEventHandler, XtAddRawEventHandler, XtRemoveEventHandler, XtRemoveRawEventHandler, XtInsertEventHandler, XtInsertRawEventHandler - add
       and remove event handlers

SYNTAX

       void XtAddEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data);

       void XtAddRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data);

       void XtRemoveEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data);

       void XtRemoveRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data);

       void XtInsertEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data, XtListPosition
	      position);

       void XtInsertRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data, XtListPosi-
	      tion position);

       typedef enum { XtListHead, XtListTail } XtListPosition;

ARGUMENTS

       client_data
		 Specifies additional data to be passed to the client's event handler.

       event_mask
		 Specifies the event mask for which to call or unregister this procedure.

       nonmaskable
		 Specifies a Boolean value that indicates whether this procedure should be called or removed on the nonmaskable events (Graphic-
		 sExpose, NoExpose, SelectionClear, SelectionRequest, SelectionNotify, ClientMessage, and MappingNotify).

       proc	 Specifies the procedure that is to be added or removed.

       w	 Specifies the widget for which this event handler is being registered.

       position  Specifies when the event handler is to be called relative to other previously registered handlers.

DESCRIPTION

       The XtAddEventHandler function registers a procedure with the dispatch mechanism that is to be called when an event that matches the mask
       occurs on the specified widget.	If the procedure is already registered with the same client_data, the specified mask is ORed into the
       existing mask.  If the widget is realized, XtAddEventHandler calls XSelectInput, if necessary.

       The XtAddRawEventHandler function is similar to XtAddEventHandler except that it does not affect the widget's mask and never causes an XSe-
       lectInput for its events.  Note that the widget might already have those mask bits set because of other nonraw event handlers registered on
       it.

       The XtRemoveRawEventHandler function stops the specified procedure from receiving the specified events.	Because the procedure is a raw
       event handler, this does not affect the widget's mask and never causes a call on XSelectInput.

       XtInsertEventHandler is identical to XtAddEventHandler with the additional position argument. if position is XtListHead, the event handler
       is registered to that it will be called before any event handlers that were previously registered for the same widget.  If position is
       XtListTail, the event handler is registered to be called after any previously registered event handlers. If the procedure is already regis-
       tered with the same client_data value, the specified mask augments the existing mask and the procedure is repositioned in the list.

       XtInsertRawEventHandler is similar to XtInsertEventHandler except that it does not modify the widget's event mask and never causes an XSe-
       lectInput for the specified events. If the procedure is already registered with the same client_data value, the specified mask augments the
       existing mask and the procedure is repositioned in the list.

SEE ALSO

       XtAppNextEvent(3Xt), XtBuildEventMask(3Xt)
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

XFree86 							   Version 4.7.0					    XtAddEventHandler(3Xt)