November 1998
Intermediate to advanced
106 pages
2h 58m
English
Content preview from Perl/Tk Pocket Reference
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
11. Composite and Derived Widgets 71
Window Display Items
Display items of the type window display a Perl/TK widget.
Window items support the following options:
-style => itemStyle
Specifies the itemStyle to use for this window item.
Must be the name of a widget display style created with
ItemStyle.
-widget => widgetRef
Specifies the widget to display in the item.
Window item style options:
Creating and Manipulating Item Styles
$widget->ItemStyle(itemType, ?-stylename => name?,
?
-refwindow => widgetRef ?, ?-option => value?);
itemType is an existing display item type, a widget refer-
ence or a new type added by the user. -stylename speci-
fies a name for this style. -refwindow specifies a widget to
use for determining the default values of the display type.
If unspecified,
$widget is used. Default values for the dis-
play types can be set via the options database.
$style->delete;
Destroy this display style object.
11. Composite and
Derived Widgets
Composite and derived widgets are defined by a package.
Composites are generally made from a Frame or TopLevel
-anchor -padx
-background -pady
-disabledbackground -selectbackground
-disabledforeground -selectforeground
-foreground -wraplength
-anchor -padx -pady
72 Perl/Tk Pocket Reference
widget with subwidgets arranged inside. Derived widgets
change the functionality of an ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.