NAME¶
Tk::Splashscreen - display a Splashscreen during program initialization.
SYNOPSIS¶
$splash = $parent->Splashscreen(-opt => val, ... );
DESCRIPTION¶
For programs that require large load times, it's a common practice to display a
Splashscreen that occupies the user's attention. This Toplevel mega widget
provides all the display, destroy and timing events. All you do it create the
Splashscreen mega widget, populate it as you see fit, then invoke
Splash() to display it and
Destroy() to tear it down.
Important note: be sure to sprinkle
update() calls throughout your
initialization code so that any Splashscreen events are handled. Remember, the
screen may be animated, or the user may be simply moving the Splashscreen
about.
OPTIONS¶
The following option/value pairs are supported:
- -milliseconds
- The minimum number of milliseconds the Splashscreen should
remain on the screen. Default is 0, which means that the Splashscreen is
destroyed as soon as Destroy() is called. Otherwise,
Destroy() waits for the specified time interval to elapse before
destroying the Splashscreen.
METHODS¶
$splash->Splash([milliseconds]);
If
milliseconds is specified, it's the minimum number of milliseconds the
Splashscreen should remain on the screen. This value takes precedence over
that specified on the Splashscreen constructor call.
$splash->Destroy([milliseconds]);
If
milliseconds is specified, it's the minimum number of milliseconds the
Splashscreen should remain on the screen. This value takes precedence over
that specified on the
Splash() call, which takes precedence over that
specified during Splashscreen construction.
BINDINGS¶
<ButtonPress-3>
Notifies the Splashscreen to set a mark for an impending move.
<ButtonRelease-3>
Moves the Splashscreen from the mark to the cursor's current position.
Component subwidgets can be accessed via the
Subwidget method. This mega
widget has no advertised subwidgets. Instead, treat the widget reference as a
Toplevel and populate it as desired.
EXAMPLE¶
$splash = $mw->Splashscreen;
... populate the Splashscreen toplevel as desired ...
$splash->Splash(4000);
... program initialization ...
$splash->Destroy;
AUTHOR¶
Stephen.O.Lidie@Lehigh.EDU
Copyright (C) 2001 - 2002, Steve Lidie. All rights reserved.
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
KEYWORDS¶
Splashscreen, Toplevel