PyGame Transparent Window

import os, sys
import traceback

import win32api
import win32con
import win32gui

with open(os.devnull, "w") as f:
    oldstdout=sys.stdout; sys.stdout=f; import pygame; sys.stdout=oldstdout


if sys.platform in ["win32","win64"]:
    os.environ["SDL_VIDEO_CENTERED"] = "1"
else:
    raise OSError("Not implemented!")

pygame.display.init()

icon=pygame.Surface((1,1)); icon.set_alpha(0); pygame.display.set_icon(icon)
pygame.display.set_caption("Transparent PyGame Windows - Ian Mallett")


def show_startup():
    res = (256,128)

    surface = pygame.display.set_mode(res,pygame.NOFRAME)

    color_transparent = (255,0,255)

    hwnd = pygame.display.get_wm_info()["window"]
    win32gui.SetWindowLong(
        hwnd,
        win32con.GWL_EXSTYLE,
        win32gui.GetWindowLong(hwnd,win32con.GWL_EXSTYLE) | win32con.WS_EX_LAYERED
    )
    win32gui.SetLayeredWindowAttributes(
        hwnd,
        win32api.RGB(*color_transparent), 0,
        win32con.LWA_COLORKEY
    )

    while True:
        for event in pygame.event.get():
            if   event.type == pygame.QUIT: return False
            elif event.type == pygame.KEYDOWN:
                if   event.key == pygame.K_RETURN:
                    return True
                elif event.key == pygame.K_ESCAPE:
                    return False

        surface.fill(color_transparent)

        pygame.draw.circle(surface,(64,128,96,128),(128,64),64,0)
        for r in [(0,0,16,16),(240,0,16,16),(0,112,16,16),(240,112,16,16)]:
            pygame.draw.rect(surface,(64,96,255),r,2)

        pygame.display.flip()

def show_app():
    surface = pygame.display.set_mode((512,256))

    while True:
        for event in pygame.event.get():
            if   event.type == pygame.QUIT: return
            elif event.type == pygame.KEYDOWN:
                if   event.key == pygame.K_ESCAPE: return

        surface.fill((64,64,64))

        pygame.display.flip()

def main():
    did_not_quit = show_startup()
    if did_not_quit:
        show_app()

    pygame.quit()

if __name__ == "__main__":
    try:
        main()
    except:
        traceback.print_exc()
        pygame.quit()
        input()