uninterrupted while loop with python cv2.VideoCapture() and string input

Question

I use this code to capture and display the input from my webcam.

import numpy as np
import cv2

cap = cv2.VideoCapture(0)

while(True):
    check, frame = cap.read()

    cv2.imshow('frame',frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

I have a barcode scanner and want to check inside the while loop if a specific string gets scanned in.

input() interupts the stream from the webcam. I need something like cv2.waitKey() but for strings

while(True):
    check, frame = cap.read()

    cv2.imshow('frame',frame)
    if cv2.waitString(barcode) == '123456':
        # do something
    if cv2.waitString(barcode) == '098765':
        # do something else

I tried msvcrt, but to no avail. The stream continues but nothing gets printed.

    if msvcrt.kbhit():
        if msvcrt.getwche() == '280602017300':
            print("Barcode scanned!")

Or is there a way to skip input() until something was entered?

UPDATE

Making some progress with the help of this post. How to read keyboard-input?

I was able to update my code.

import threading
import queue
import time
import numpy as np
import cv2

def read_kbd_input(inputQueue):
    print('Ready for keyboard input:')
    while (True):
        input_str = input()
        inputQueue.put(input_str)

def main():
    inputQueue = queue.Queue()

    inputThread = threading.Thread(target=read_kbd_input, args=(inputQueue,), daemon=True)
    inputThread.start()

    cap = cv2.VideoCapture(0)

    font                   = cv2.FONT_HERSHEY_DUPLEX
    fontScale              = 1
    fontColor              = (255,255,255)
    lineType               = 2
    input_str = "test"

    while (True):
        check, frame = cap.read()

        if (inputQueue.qsize() > 0):
            input_str = inputQueue.get() 

            if (input_str == '280602017300'):
                print("do something")

        cv2.putText(frame, input_str, (10,30), font, fontScale, fontColor, lineType)

        cv2.imshow('frame',frame)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

        time.sleep(0.01) 
    print("End.")

if (__name__ == '__main__'): 
    main()

Now the only problem left is that my webcam stream is supposed to run in fullscreen. So the console will allways be in the background and therefore wont get the inputs form the keyboard or my barcode scanner.

need it the other way around