Python opencv buttons

buttons.py

import numpy as np
import cv2
import sys


def draw_main_menu(img1):
    cv2.rectangle(img1, (1,0) , (100,25), (80,80,80), thickness=-1)
    cv2.rectangle(img1, (102,0) , (200,25), (80,80,80), thickness=-1)
    cv2.rectangle(img1, (202,0) , (300,25), (80,80,80), thickness=-1)
    cv2.putText(img1, "Button1", (15, 20), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (200,200,200), 1)
    cv2.putText(img1, "Button2", (110, 20), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (200,200,200), 1)
    cv2.putText(img1, "Exit", (225, 20), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (200,200,200), 1)



def menu_mouse_click(event, x, y, flags, param): 
    if event == cv2.EVENT_LBUTTONDOWN:
            if y>=0 and y<=25:
                if x>=1 and x<=100:
                    print("Button1")
                elif x>=102 and x<=200:
                    print("Button2") 
                elif x>=202 and x<=300:
                    print("Exit")
                    cv2.destroyAllWindows()
                    sys.exit()
               
video_path = "/home/pavlo/Projects/VirtualCam/pano1.mp4"
cap = cv2.VideoCapture(video_path)

cv2.namedWindow("frame", cv2.WINDOW_NORMAL)
cv2.setMouseCallback("frame", menu_mouse_click) 
while(cap.isOpened()):
    ret, frame = cap.read()
    draw_main_menu(frame)
    cv2.imshow("frame",frame)
    k = cv2.waitKey(1) & 0xff
    if k == 27:
        cv2.destroyAllWindows()
        sys.exit()