diff options
Diffstat (limited to 'doc/CrtTimerHdlr.3')
-rw-r--r-- | doc/CrtTimerHdlr.3 | 150 |
1 files changed, 75 insertions, 75 deletions
diff --git a/doc/CrtTimerHdlr.3 b/doc/CrtTimerHdlr.3 index 8509e26..3d3fed6 100644 --- a/doc/CrtTimerHdlr.3 +++ b/doc/CrtTimerHdlr.3 @@ -1,75 +1,75 @@ -'\"
-'\" Copyright (c) 1990 The Regents of the University of California.
-'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\"
-'\" RCS: @(#) $Id: CrtTimerHdlr.3,v 1.4 2007/10/28 14:17:38 dkf Exp $
-'\"
-.so man.macros
-.TH Tcl_CreateTimerHandler 3 7.5 Tcl "Tcl Library Procedures"
-.BS
-.SH NAME
-Tcl_CreateTimerHandler, Tcl_DeleteTimerHandler \- call a procedure at a given time
-.SH SYNOPSIS
-.nf
-\fB#include <tcl.h>\fR
-.sp
-Tcl_TimerToken
-\fBTcl_CreateTimerHandler\fR(\fImilliseconds, proc, clientData\fR)
-.sp
-\fBTcl_DeleteTimerHandler\fR(\fItoken\fR)
-.SH ARGUMENTS
-.AS Tcl_TimerToken milliseconds
-.AP int milliseconds in
-How many milliseconds to wait before invoking \fIproc\fR.
-.AP Tcl_TimerProc *proc in
-Procedure to invoke after \fImilliseconds\fR have elapsed.
-.AP ClientData clientData in
-Arbitrary one-word value to pass to \fIproc\fR.
-.AP Tcl_TimerToken token in
-Token for previously created timer handler (the return value
-from some previous call to \fBTcl_CreateTimerHandler\fR).
-.BE
-
-.SH DESCRIPTION
-.PP
-\fBTcl_CreateTimerHandler\fR arranges for \fIproc\fR to be
-invoked at a time \fImilliseconds\fR milliseconds in the
-future.
-The callback to \fIproc\fR will be made by \fBTcl_DoOneEvent\fR,
-so \fBTcl_CreateTimerHandler\fR is only useful in programs that
-dispatch events through \fBTcl_DoOneEvent\fR or through Tcl commands
-such as \fBvwait\fR.
-The call to \fIproc\fR may not be made at the exact time given by
-\fImilliseconds\fR: it will be made at the next opportunity
-after that time. For example, if \fBTcl_DoOneEvent\fR is not
-called until long after the time has elapsed, or if there
-are other pending events to process before the call to
-\fIproc\fR, then the call to \fIproc\fR will be delayed.
-.PP
-\fIProc\fR should have arguments and return value that match
-the type \fBTcl_TimerProc\fR:
-.CS
-typedef void Tcl_TimerProc(ClientData \fIclientData\fR);
-.CE
-The \fIclientData\fR parameter to \fIproc\fR is a
-copy of the \fIclientData\fR argument given to
-\fBTcl_CreateTimerHandler\fR when the callback
-was created. Typically, \fIclientData\fR points to a data
-structure containing application-specific information about
-what to do in \fIproc\fR.
-.PP
-\fBTcl_DeleteTimerHandler\fR may be called to delete a
-previously created timer handler. It deletes the handler
-indicated by \fItoken\fR so that no call to \fIproc\fR
-will be made; if that handler no longer exists
-(e.g. because the time period has already elapsed and \fIproc\fR
-has been invoked then \fBTcl_DeleteTimerHandler\fR does nothing.
-The tokens returned by \fBTcl_CreateTimerHandler\fR never have
-a value of NULL, so if NULL is passed to \fBTcl_DeleteTimerHandler\fR
-then the procedure does nothing.
-
-.SH KEYWORDS
-callback, clock, handler, timer
+'\" +'\" Copyright (c) 1990 The Regents of the University of California. +'\" Copyright (c) 1994-1996 Sun Microsystems, Inc. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +'\" RCS: @(#) $Id: CrtTimerHdlr.3,v 1.5 2007/10/29 17:17:53 dgp Exp $ +'\" +.so man.macros +.TH Tcl_CreateTimerHandler 3 7.5 Tcl "Tcl Library Procedures" +.BS +.SH NAME +Tcl_CreateTimerHandler, Tcl_DeleteTimerHandler \- call a procedure at a given time +.SH SYNOPSIS +.nf +\fB#include <tcl.h>\fR +.sp +Tcl_TimerToken +\fBTcl_CreateTimerHandler\fR(\fImilliseconds, proc, clientData\fR) +.sp +\fBTcl_DeleteTimerHandler\fR(\fItoken\fR) +.SH ARGUMENTS +.AS Tcl_TimerToken milliseconds +.AP int milliseconds in +How many milliseconds to wait before invoking \fIproc\fR. +.AP Tcl_TimerProc *proc in +Procedure to invoke after \fImilliseconds\fR have elapsed. +.AP ClientData clientData in +Arbitrary one-word value to pass to \fIproc\fR. +.AP Tcl_TimerToken token in +Token for previously created timer handler (the return value +from some previous call to \fBTcl_CreateTimerHandler\fR). +.BE + +.SH DESCRIPTION +.PP +\fBTcl_CreateTimerHandler\fR arranges for \fIproc\fR to be +invoked at a time \fImilliseconds\fR milliseconds in the +future. +The callback to \fIproc\fR will be made by \fBTcl_DoOneEvent\fR, +so \fBTcl_CreateTimerHandler\fR is only useful in programs that +dispatch events through \fBTcl_DoOneEvent\fR or through Tcl commands +such as \fBvwait\fR. +The call to \fIproc\fR may not be made at the exact time given by +\fImilliseconds\fR: it will be made at the next opportunity +after that time. For example, if \fBTcl_DoOneEvent\fR is not +called until long after the time has elapsed, or if there +are other pending events to process before the call to +\fIproc\fR, then the call to \fIproc\fR will be delayed. +.PP +\fIProc\fR should have arguments and return value that match +the type \fBTcl_TimerProc\fR: +.CS +typedef void Tcl_TimerProc(ClientData \fIclientData\fR); +.CE +The \fIclientData\fR parameter to \fIproc\fR is a +copy of the \fIclientData\fR argument given to +\fBTcl_CreateTimerHandler\fR when the callback +was created. Typically, \fIclientData\fR points to a data +structure containing application-specific information about +what to do in \fIproc\fR. +.PP +\fBTcl_DeleteTimerHandler\fR may be called to delete a +previously created timer handler. It deletes the handler +indicated by \fItoken\fR so that no call to \fIproc\fR +will be made; if that handler no longer exists +(e.g. because the time period has already elapsed and \fIproc\fR +has been invoked then \fBTcl_DeleteTimerHandler\fR does nothing. +The tokens returned by \fBTcl_CreateTimerHandler\fR never have +a value of NULL, so if NULL is passed to \fBTcl_DeleteTimerHandler\fR +then the procedure does nothing. + +.SH KEYWORDS +callback, clock, handler, timer |