Focus Sublime Text 4 window on Windows every 3 seconds.

focusSublimeText4.py

# coding:utf-8
# Window focus on Windows source code: https://blog.csdn.net/qq_32126137/article/details/82217630
# Find PId by process name on Windows source code: https://kkamikoon.tistory.com/85
# Usage: python focusSublimeText4.py (you need an open Sublime Text 4 window)

import time
import os
import win32gui,win32process,win32con,win32com.client
from ctypes import *
class setf():
    def __init__(self):
        self.shell=win32com.client.Dispatch("WScript.Shell")
        self.dll=CDLL("user32.dll")
 
    def setfocus(self):
        pid=self.get_pid_for_pname()
        if pid:
            hwnd = self.get_hwnds_for_pid(pid)[0]
            self.shell.SendKeys('%')
            self.dll.LockSetForegroundWindow(2)
            if self.dll.IsIconic(hwnd):
                win32gui.SendMessage(hwnd, win32con.WM_SYSCOMMAND, win32con.SC_RESTORE, 0)
            self.dll.SetWindowPos(hwnd,win32con.HWND_TOPMOST,0,0,0,0,win32con.SWP_NOSIZE|win32con.SWP_NOMOVE)
            self.dll.SetForegroundWindow(hwnd)
            self.dll.SetActiveWindow(hwnd)
 
    def get_pid_for_pname(self):
        from win32com.client import GetObject
        WMI = GetObject('winmgmts:')
        processes = WMI.InstancesOf('Win32_Process')
        process_list = [(p.Properties_("ProcessID").Value, p.Properties_("Name").Value) for p in processes]
        pid = [x for x in process_list if x[1] == "sublime_text.exe" ][0][0]
        return pid
 
    def get_hwnds_for_pid(self,pid):
        def callback (hwnd, hwnds):
            if win32gui.IsWindowVisible(hwnd) and win32gui.IsWindowEnabled(hwnd):
                _,found_pid=win32process.GetWindowThreadProcessId(hwnd)
                if found_pid==pid:
                    hwnds.append(hwnd)
                return True
        hwnds=[]
        win32gui.EnumWindows(callback, hwnds)
        print( hwnds)
        return hwnds
 
if __name__ == '__main__':
    sf=setf()
    while True:
        time.sleep(3)
        try:
            sf.setfocus()
        except Exception as e:
            print(e)