326 lines
8.2 KiB
Plaintext
326 lines
8.2 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.ny0
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.TH XNextEvent 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XNextEvent, XPeekEvent, XWindowEvent, XCheckWindowEvent, XMaskEvent, XCheckMaskEvent, XCheckTypedEvent, XCheckTypedWindowEvent \- select events by type
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.SH SYNTAX
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.\" $Header: XNextEvent.f,v 1.1 88/02/26 10:01:33 mento Exp $
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XNextEvent\^(\^\fIdisplay\fP, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XPeekEvent.f,v 1.1 88/02/26 10:01:43 mento Exp $
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XPeekEvent\^(\^\fIdisplay\fP, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XWindowEvent.f,v 1.1 88/02/26 10:04:15 mento Exp $
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XWindowEvent\^(\^\fIdisplay\fP, \fIw\fP\^, \fIevent_mask\fP\^, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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long \fIevent_mask\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XChkWinEvnt.f,v 1.2 88/05/04 06:26:26 mento Exp $
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Bool XCheckWindowEvent\^(\^\fIdisplay\fP, \fIw\fP\^, \fIevent_mask\fP\^, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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long \fIevent_mask\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XMaskEvent.f,v 1.2 88/05/04 06:27:18 mento Exp $
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XMaskEvent\^(\^\fIdisplay\fP, \fIevent_mask\fP\^, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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long \fIevent_mask\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XChkMskEvnt.f,v 1.2 88/05/04 06:28:11 mento Exp $
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Bool XCheckMaskEvent\^(\^\fIdisplay\fP, \fIevent_mask\fP\^, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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long \fIevent_mask\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XChkTypEvnt.f,v 1.1 88/02/26 09:58:39 mento Exp $
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Bool XCheckTypedEvent\^(\^\fIdisplay\fP, \fIevent_type\fP\^, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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int \fIevent_type\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.LP
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.\" $Header: XChkTypWEvnt.f,v 1.1 88/02/26 09:58:39 mento Exp $
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Bool XCheckTypedWindowEvent\^(\^\fIdisplay\fP, \fIw\fP\^, \fIevent_type\fP\^, \fIevent_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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int \fIevent_type\fP\^;
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.br
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XEvent *\fIevent_return\fP\^;
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.SH ARGUMENTS
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.\" $Header: eventmask.a,v 1.2 88/05/14 13:04:06 mento Exp $
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.IP \fIevent_mask\fP 1i
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Specifies the event mask.
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.\" $Header: event.a,v 1.4 88/05/14 13:23:54 mento Exp $
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.IP \fIevent_return\fP 1i
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Returns the matched event's associated structure.
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.\" $Header: event_next.a,v 1.1 88/04/08 14:22:34 mento Exp $
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.IP \fIevent_return\fP 1i
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Returns the next event in the queue.
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.IP \fIevent_return\fP 1i
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Returns a copy of the matched event's associated structure.
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.\" $Header: event_type.a,v 1.1 88/02/26 10:26:48 mento Exp $
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.IP \fIevent_type\fP 1i
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Specifies the event type to be compared.
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.ds Wi \ whose event uou are interested in
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.\" $Header: w_gen.a,v 1.4 88/08/04 11:21:56 mento Exp $
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.IP \fIw\fP 1i
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Specifies the window \*(Wi.
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.SH DESCRIPTION
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.\" $Header: XNextEvent.d,v 1.2 88/06/11 07:52:01 mento Exp $
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The
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.ZN XNextEvent
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function copies the first event from the event queue into the specified
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.ZN XEvent
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structure and then removes it from the queue.
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If the event queue is empty,
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.ZN XNextEvent
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flushes the output buffer and blocks until an event is received.
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.LP
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.\" $Header: XPeekEvent.d,v 1.2 88/06/11 07:52:05 mento Exp $
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The
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.ZN XPeekEvent
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function returns the first event from the event queue,
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but it does not remove the event from the queue.
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If the queue is empty,
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.ZN XPeekEvent
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flushes the output buffer and blocks until an event is received.
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It then copies the event into the client-supplied
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.ZN XEvent
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structure without removing it from the event queue.
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.LP
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.\" $Header: XWindowEvent.d,v 1.2 88/06/11 07:54:37 mento Exp $
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The
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.ZN XWindowEvent
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function searches the event queue for an event that matches both the specified
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window and event mask.
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When it finds a match,
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.ZN XWindowEvent
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removes that event from the queue and copies it into the specified
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.ZN XEvent
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structure.
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The other events stored in the queue are not discarded.
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If a matching event is not in the queue,
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.ZN XWindowEvent
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flushes the output buffer and blocks until one is received.
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.LP
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.\" $Header: XChkWinEvnt.d,v 1.4 88/06/11 07:49:18 mento Exp $
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The
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.ZN XCheckWindowEvent
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function searches the event queue and then the events available
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on the server connection for the first event that matches the specified window
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and event mask.
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If it finds a match,
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.ZN XCheckWindowEvent
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removes that event, copies it into the specified
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.ZN XEvent
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structure, and returns
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.ZN True .
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The other events stored in the queue are not discarded.
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If the event you requested is not available,
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.ZN XCheckWindowEvent
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returns
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.ZN False ,
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and the output buffer will have been flushed.
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.LP
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.\" $Header: XMaskEvent.d,v 1.3 88/06/11 07:51:58 mento Exp $
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The
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.ZN XMaskEvent
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function searches the event queue for the events associated with the
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specified mask.
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When it finds a match,
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.ZN XMaskEvent
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removes that event and copies it into the specified
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.ZN XEvent
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structure.
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The other events stored in the queue are not discarded.
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If the event you requested is not in the queue,
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.ZN XMaskEvent
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flushes the output buffer and blocks until one is received.
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.LP
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.\" $Header: XChkMskEvnt.d,v 1.4 88/06/11 07:49:13 mento Exp $
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The
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.ZN XCheckMaskEvent
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function searches the event queue and then any events available on the
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server connection for the first event that matches the specified mask.
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If it finds a match,
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.ZN XCheckMaskEvent
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removes that event, copies it into the specified
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.ZN XEvent
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structure, and returns
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.ZN True .
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The other events stored in the queue are not discarded.
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If the event you requested is not available,
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.ZN XCheckMaskEvent
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returns
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.ZN False ,
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and the output buffer will have been flushed.
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.LP
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The
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.ZN XCheckTypedEvent
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function searches the event queue and then any events available
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on the server connection for the first event that matches the specified type.
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If it finds a match,
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.ZN XCheckTypedEvent
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removes that event, copies it into the specified
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.ZN XEvent
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structure, and returns
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.ZN True .
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The other events in the queue are not discarded.
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If the event is not available,
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.ZN XCheckTypedEvent
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returns
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.ZN False ,
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and the output buffer will have been flushed.
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.LP
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The
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.ZN XCheckTypedWindowEvent
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function searches the event queue and then any events available
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on the server connection for the first event that matches the specified
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type and window.
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If it finds a match,
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.ZN XCheckTypedWindowEvent
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removes the event from the queue, copies it into the specified
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.ZN XEvent
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structure, and returns
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.ZN True .
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The other events in the queue are not discarded.
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If the event is not available,
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.ZN XCheckTypedWindowEvent
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returns
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.ZN False ,
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and the output buffer will have been flushed.
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.SH "SEE ALSO"
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XAnyEvent(3X11),
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XIfEvent(3X11),
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XPutBackEvent(3X11),
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XSendEvent(3X11)
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.br
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\fI\*(xL\fP
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