control-keyrelease-a

Author: furas

tkinter/__links__/README.md

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+
+![#1](screenshots/image-1.png?raw=true)
+
+# Key names
+
+http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/key-names.html
+
+http://www.tcl.tk/man/tcl8.4/TkCmd/keysyms.htm
+
+# Events
+
+- [54.6. Writing your handler: The Event class](http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/event-handlers.html) (NMT)
+- [54.3. Event types](http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/event-types.html)
+
+- [How to bind Ctrl+/ in python tkinter?](http://stackoverflow.com/a/16082411/1832058) (SO)
+
+---
+
+- NMT = [New Mexico Tech](http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/index.html)
+- Effbot - [An Introduction to Tkinter](http://effbot.org/tkinterbook/tkinter-index.htm)

tkinter/entry-bind-key-release-to-select-text/README.md

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+
+StackOverflowa: [CTRL + a select all in entry widget tkinter python](http://stackoverflow.com/questions/41477428/ctrl-a-select-all-in-entry-widget-tkinter-python/41478726#41478726)
+
+Selecting text in `Entry` using `Ctrl+A` as in other programs - it highlights text so it can be coped into cliboard.
+
+# example-1.py
+
+Because after releasing keys `<Control-a>` selection is removed
+so I use `after()` to execute selection after 50ms.
+It selects all text (but it moves cursor to the beginning)
+and moves cursor to the end.
+
+# example-2.py
+
+Before I couldn't find correct combination with `Release`
+but it has to be `<Control-KeyRelease-a>`
+and now it doesn't need `after()`

tkinter/entry-bind-key-release-to-select-text/example-1.py

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+#!/usr/bin/env python3
+
+'''
+Because after releasing keys `<Control-a>` selection is removed
+so I use `after()` to execute selection after 50ms.
+It selects all text (but it moves cursor to the beginning)
+and moves cursor to the end.
+'''
+
+import tkinter as tk
+
+def callback(event):
+    print('e.get():', e.get())
+    # or more universal
+    print('event.widget.get():', event.widget.get())
+    # select text after 50ms
+    root.after(50, select_all, event.widget)
+
+def select_all(widget):
+    # select text
+    widget.select_range(0, 'end')
+    # move cursor to the end
+    widget.icursor('end')
+
+root = tk.Tk()
+
+e = tk.Entry(root)
+e.pack()
+e.bind('<Control-a>', callback)
+
+root.mainloop()

tkinter/entry-bind-key-release-to-select-text/example-2.py

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+#!/usr/bin/env python3
+
+'''
+Before I couldn't find correct combination with `Release`
+but it has to be `<Control-KeyRelease-a>`
+and now it doesn't need `after()`
+'''
+
+import tkinter as tk
+
+def callback(event):
+
+    print('e.get():', e.get())
+    # or more universal
+    print('event.widget.get():', event.widget.get())
+
+    # select text
+    event.widget.select_range(0, 'end')
+    # move cursor to the end
+    event.widget.icursor('end')
+
+root = tk.Tk()
+
+e = tk.Entry(root)
+e.pack()
+e.bind('<Control-KeyRelease-a>', callback)
+
+root.mainloop()