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+--- Thread: What units does the width parameter of a tkinter Listbox use? (/thread-28060.html)
What units does the width parameter of a tkinter Listbox use? - Pedroski55 - Jul-03-2020
I am tinkering with tkinter, trying to get the feel of it.
I make a nice window:
def myApp():
root = Tk()
root.title("Scrollbar Test")
root.config(bg='light blue')
root.geometry("640x480")
xscrollbar = Scrollbar(root, orient=HORIZONTAL, width=20, activebackground='red', )
yscrollbar = Scrollbar(root, orient=VERTICAL, width=20, activebackground='green', )
xscrollbar.pack( side = BOTTOM, fill = X )
yscrollbar.pack( side = RIGHT, fill = Y )
# setting Listbox width = 75 makes it almost equal to the root window width of 640
mylist = Listbox(root, xscrollcommand = xscrollbar.set, yscrollcommand = yscrollbar.set, width = 75)
#mylist = Listbox(root, yscrollcommand = yscrollbar.set )
for line in range(100):
mylist.insert(END, "This is a very very long line with a line number added line number " + str(line))
mylist.pack( side = LEFT, fill = BOTH )
xscrollbar.config( command = mylist.xview )
yscrollbar.config( command = mylist.yview )
mainloop()root.geometry is set to ("640x480")then I set width = 75 for my Listbox.
But width = 75 is almost equal to 640 pixels!
What units does tkinter use for width parameters??
RE: What units does the width parameter of a tkinter Listbox use? - Larz60+ - Jul-03-2020
It is pixels.
See page 52 of Shipman Tkinter Referemce Manual (you can get a copy here: https://users.tricity.wsu.edu/~bobl/cpts481/tkinter_nmt.pdf )
RE: What units does the width parameter of a tkinter Listbox use? - deanhystad - Jul-04-2020
Listbox width is in characters, just like Entry and other controls that are used to display or enter text.