How to make multi-keystroke function in Python

Question

I'm using Python 3.5 and I want to make multi-keystroke function. I want to make a function that notices Ctrl+Q but my program didn't notice it.

Here's my code:

import threading, pygame
from pygame.locals import *
from time import sleep

pygame.init()
screen = pygame.display.set_mode((1160, 640), 0, 0)
screen.fill((255, 255, 255))

pygame.display.flip()

def background():
    number = 0
    while True:
        if number < 10:
            number = number + 1
            print(number)
            sleep(1)
        else:
            print("10 seconds are over!")
            break

def foreground():
    while True:
        for event in pygame.event.get():
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.key.get_mods() & pygame.KMOD_CTRL and pygame.K_q:
                    print('HELLO_WORLD')


b = threading.Thread(name='background', target=background)
f = threading.Thread(name='foreground', target=foreground)

b.start()
f.start()

I also changed

def foreground():
    while True:
        for event in pygame.event.get():
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.key.get_mods() & pygame.KMOD_CTRL and pygame.K_q:
                    print('HELLO_WORLD')

to

def foreground():
    while True:
        key = pygame.key.get_pressed()
        if key[pygame.key.get_mods() & pygame.KMOD_CTRL and pygame.K_q]:
            print('HELLO_WORLD')

but it didn't notice Ctrl+Q.

How can I make it?

While the question could become interesting you're not giving a lot of relevant info. ie: global keystrokes or widget's keystrokes? any specific platform or platform independent? ... But the most important, how-to-ask. — BPL
– BPL, Commented Jun 16, 2018 at 10:20

BPL · Accepted Answer · 2018-06-16 11:01:05Z

2

Here's a possible fix for your code:

import threading
import pygame
from pygame.locals import *
from time import sleep
import sys

pygame.init()
screen = pygame.display.set_mode((1160, 640), 0, 0)
screen.fill((255, 255, 255))
pygame.display.flip()


def background():
    number = 0
    while True:
        if number < 10:
            number = number + 1
            print(number)
            sleep(1)
        else:
            print("10 seconds are over!")
            break


def foreground():
    while True:
        for event in pygame.event.get():
            if event.type == QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.KEYDOWN:
                if pygame.key.get_mods() & pygame.KMOD_CTRL and event.key == pygame.K_q:
                    print('HELLO_WORLD')

            pygame.display.update()


b = threading.Thread(name='background', target=background)
b.start()
foreground()

answered Jun 16, 2018 at 11:01

BPL

9,99512 gold badges69 silver badges135 bronze badges

Sign up to request clarification or add additional context in comments.

17 Comments

Mike from PSG Over a year ago

Doesn't fix the bug that's causing the issue. The problem is in the if statement that checks which key was pressed.

BPL Over a year ago

@MikeyB What do you mean? I've tested this thing before posting my answer and it was working, here

Mike from PSG Over a year ago

Oh, wait, I didn't see your change to the IF statement. I see two conditions there now. The bug was that one line of code. I'll take down my answer.

Hoseong Jeon Over a year ago

@BPL I edited my question. Could you answer my another question?

BPL Over a year ago

@HoseongJeon Sure, I can give it a shot. But make sure to put the new content in a new thread, that's how StackOverflow goes. 1 question per thread

|

Collectives™ on Stack Overflow

How to make multi-keystroke function in Python

1 Answer 1

17 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

17 Comments

Your Answer

Sign up or log in

Post as a guest

Related