On 09-04-22 20:28, Sujan Shakya wrote:
> Hi Ian,
> Thank you for helping me. I've completed the curses task of creating
> menu based console using urwid. But right I am facing a problem. I
> need to ignore keyboard interrupts such as Ctrl-C, Ctrl-Z etc. There
> must a way to do this. So please help me.
>
This is strictly speaking outside the scope of Urwid. As far as I know
it doesn't provide any mechanism for controlling keyboard interrupts. In
my project I wanted [ctrl-C] to toggle case sensitivity of searches
rather than interrupting the program. You can control what keys are
handled by the operating system using the termios module. What I did was
(with lots of irrelevant code omitted):
import termios
def SetupTty(self):
"""Ensure the tty is setup correctly."""
old_termios = termios.tcgetattr(0)
old_termios[-1][termios.VINTR] = '\0'
termios.tcsetattr(0, termios.TCSANOW, old_termios)
def Run(self):
"""Handle user input and update the display."""
self.SetupTty()
# other setup followed by the main dispatch loop:
while True:
self.screen.draw_screen(self.screen_size, canvas)
keys = self.screen.get_input()
if 'ctrl d' in keys or 'f8' in keys:
return
for key in keys:
# some code omitted for brevity...
if key == 'window resize':
self.screen_size = self.screen.get_cols_rows()
else:
self.Keypress(self.screen_size, key)
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