diff options
Diffstat (limited to 'doc/after.n')
| -rw-r--r-- | doc/after.n | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/doc/after.n b/doc/after.n index 4db2815..ea6aa0b 100644 --- a/doc/after.n +++ b/doc/after.n @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: after.n,v 1.3.18.1 2004/10/27 09:35:38 dkf Exp $ +'\" RCS: @(#) $Id: after.n,v 1.3.18.2 2004/10/27 14:23:41 dkf Exp $ '\" .so man.macros .TH after n 7.5 Tcl "Tcl Built-In Commands" @@ -101,24 +101,21 @@ will not be executed unless the application enters the event loop. In applications that are not normally event-driven, such as \fBtclsh\fR, the event loop can be entered with the \fBvwait\fR and \fBupdate\fR commands. - .SH "EXAMPLES" This defines a command to make Tcl do nothing at all for \fIN\fR seconds: - .CS proc sleep {N} { - \fBafter\fR [expr {int($N * 1000)}] + \fBafter\fR [expr {int($N * 1000)}] } .CE - +.PP This arranges for the command \fIwake_up\fR to be run in eight hours (providing the event loop is active at that time): - .CS \fBafter\fR [expr {1000 * 60 * 60 * 8}] wake_up .CE - +.PP The following command can be used to do long-running calculations (as represented here by \fI::my_calc::one_step\fR, which is assumed to return a boolean indicating whether another step should be performed) @@ -129,12 +126,11 @@ processing steps (arranging for the next step to be done using an already-triggered timer event only when the event queue has been drained) and is useful when you want to ensure that a Tk GUI remains responsive during a slow task. - .CS proc doOneStep {} { - if {[::my_calc::one_step]} { - \fBafter\fR idle [list \fBafter\fR 0 doOneStep] - } + if {[::my_calc::one_step]} { + \fBafter idle\fR [list \fBafter\fR 0 doOneStep] + } } doOneStep .CE |