Mailman 3 March 2015 - Tkinter-discuss

Control position of Tkinter common dialogs?
by python＠bdurham.com Dec. 9, 2016

Dec. 9, 2016

Python 2.7 under Windows: How can we control the position of Tkinter's common dialogs? Here's what we've discovered: * Certain common dialogs always open up relative to their parent window * Certain common dialogs always open up centered on the user's desktop * All common dialogs appear to ignore the optional parent= parameter Questions: * How can we force a dialog to open up relative to its parent window? * How can we force a dialog to open up centered on the user's desktop? Background: import tkColorChooser as colorchooser import tkFileDialog as filedialog import tkMessageBox as messagebox # always open up relative to parent windows fileOpen = filedialog.askopenfilename() fileOpens = filedialog.askopenfilenames() fileSaveAs = filedialog.asksaveasfilename() color = colorchooser.askcolor() # always open up centered on desktop folderOpen = filedialog.askdirectory() messagebox.askquestion() Malcolm

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Is there a way to scroll Tkinter.Text widget by pixel instead of see() (which scrolls by line)?
by jevan＠freenet.de March 18, 2015

March 18, 2015

When I type in the Text widget the text lines wrap toward the bottom of the page, the caret reaches the bottom of the Text widget. When I hit return, the caret dissapears out of view. When I type a character, the view finally scrolls up one line allowing me to see the character just typed. See doesn't seem to want to show this next line always, so I can't see. Is there a way scroll the Text widget by pixel, so I can get pixel perfect scrolling? And/or how do I get the line that get the carriage return to allways bee seen on a enter? FYI: I am breaking each character because I have to custom process each character because the editor has several custom formating things that must occur. So the Enter is actually put in with Text.insert(), not after I have return 'break' in from the keypress event. Could this be something to do with it? --- Alle Postfächer an einem Ort. Jetzt wechseln und E-Mail-Adresse mitnehmen! Rundum glücklich mit freenetMail

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Persistent Listbox selection
by Vasilis Vlachoudis March 9, 2015

March 9, 2015

Dear all, how can I keep the listbox selection persistent when user selects something in the entry? In the following example, the rows 0 to 10 are selected in the listbox If you click and select something in the entry box the selection is lost Is there an option to avoid this behaviour? Best Regards Vasilis from Tkinter import * tk = Tk() listbox = Listbox(tk, selectmode=EXTENDED, exportselection=True) listbox.pack(fill=BOTH, expand=YES) for i in range(100): listbox.insert(END,"line %d"%(i)) listbox.selection_set(0,10) entry = Entry(tk) entry.pack(side=BOTTOM, fill=X) entry.insert(0,"Hello world") tk.mainloop()

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