how to select area on window using python code example

Example: how to drag a box on your screen python

import win32gui
import win32ui
import win32con
import win32api

def saveScreenShot(x,y,width,height,path):
    # grab a handle to the main desktop window
    hdesktop = win32gui.GetDesktopWindow()

    # create a device context
    desktop_dc = win32gui.GetWindowDC(hdesktop)
    img_dc = win32ui.CreateDCFromHandle(desktop_dc)

    # create a memory based device context
    mem_dc = img_dc.CreateCompatibleDC()

    # create a bitmap object
    screenshot = win32ui.CreateBitmap()
    screenshot.CreateCompatibleBitmap(img_dc, width, height)
    mem_dc.SelectObject(screenshot)


    # copy the screen into our memory device context
    mem_dc.BitBlt((0, 0), (width, height), img_dc, (x, y),win32con.SRCCOPY)

    # save the bitmap to a file
    screenshot.SaveBitmapFile(mem_dc, path)
    # free our objects
    mem_dc.DeleteDC()
    win32gui.DeleteObject(screenshot.GetHandle())