January 1999
Beginner
373 pages
9h 43m
English
Content preview from Learning Perl/Tk
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.
7.2. Listbox Options
As with any of the widgets, you can configure the listbox using options. The standard widget options are -cursor, -font, -height, -highlightbackground, -highlightcolor, -highlightthickness, -takefocus, -width, -xscrollcommand, and -yscrollcommand. The options that behave the same for each widget will only be listed in the following list. Those options specific to listbox widgets will be discussed later in this chapter.
-background => color
Sets the color of the area behind the text.
-borderwidth => amount
Sets the width of the edges of the widget. Default is 2.
-cursor => cursorname
Sets the cursor to display when the mouse is over the listbox.
-exportselection => 0 |1
Determines if the current listbox selection is made available for the X selection as well. If set to 1, prevents two listboxes from both having selections at the same time.
-font => fontname
Sets the font of any text displayed within the listbox.
-foreground =>color
Sets the color of nonselected text displayed in the listbox.
-height => amount
Sets the height of the listbox.
-highlightbackground =>color
Sets the color the highlight rectangle should be when the listbox does not have the keyboard focus.
-highlightcolor =>color
Sets the color the highlight rectangle should be when the listbox does have the keyboard focus.
-highlightthickness =>amount
Sets the thickness of the highlight rectangle. Default is 2.
-relief => 'flat'|'groove'|'raised'|'ridge'|' sunken'|'solid'
Sets the relief ...
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.