SCREENRECORDER APP KIVY

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from PIL import ImageGrab
import numpy as ny
from win32api import GetSystemMetrics
from kivy.app import App
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import Screen, ScreenManager
import cv2
import time


screenmanager = """

ScreenManager:
    Screenrecordmenu:
    
<Screenrecordmenu>:
    name: 'menu' 
    RelativeLayout:
        orientation:'vertical'
        pos: self.pos
        size: root.size   

    Label:
        text: 'Welcome to screen recorder app'
        pos_hint:{'center_x':0.5,'center_y':0.905}
        font_size: (self.height/15)* 0.75
        
        
    Label:
        text: 'Press the screen record button to screen record the screen'
        pos_hint:{'center_x':0.5,'center_y':0.705}
        font_size: (self.height/15)* 0.65
    

    Label:
        text: 'Input the name of the file'
        pos_hint:{'center_x':0.3,'center_y':0.555}
        font_size: (self.height/15)* 0.65
        
        
    Label:
        text: 'Input the number of minutes'
        pos_hint:{'center_x':0.3,'center_y':0.455}
        font_size: (self.height/15)* 0.65    
        
    TextInput:
        id: screenrecordname
        size_hint: 0.2, 0.05    
        pos_hint:{'center_x':0.6,'center_y':0.555}
        
    TextInput:
        id: screenrecordmin
        size_hint: 0.2, 0.05    
        pos_hint:{'center_x':0.62,'center_y':0.455}
        
        
    Button:
        text:'Screen Record'
        size_hint: .3,.1
        pos_hint:{'center_x':0.47,'center_y':0.354}    
        on_release: root.screenrecord()   



"""



class Screenrecordmenu(Screen):

    def screenrecord(self):
        App.get_running_app().root_window.minimize()
        min = time.time()+60*eval(self.ids.screenrecordmin.text)
        height = GetSystemMetrics(1)
        width = GetSystemMetrics(0)

        file_name = f'{self.ids.screenrecordname.text}.mp4'
        format = cv2.VideoWriter_fourcc('m','p','4','v')
        final_video = cv2.VideoWriter(file_name,format,20.0,(width,height))

        while time.time() < min:
            img = ImageGrab.grab(bbox=(0,0, width,height))
            img_ny = ny.array(img)
            final_image = cv2.cvtColor(img_ny, cv2.COLOR_BGR2RGB)
            final_video.write(final_image)

        App.get_running_app().root_window.restore()




class Screenrecord (App):

    def build(self):
        screen = Builder.load_string(screenmanager)
        return screen

sm = ScreenManager()
sm.add_widget(Screenrecordmenu(name='menu'))
Screenrecord().run()