from tkinter import *

if __name__ == '__main__':

    tk = Tk()
    tk.geometry('500x400+500+150')
    tk.title('有趣的透明窗体-开篇了！！！')
    canvas = Canvas(tk)
    canvas.pack(fill=BOTH, expand=Y)
    tk.mainloop()

TRANSCOLOUR = 'gray'
tk.wm_attributes('-transparentcolor', TRANSCOLOUR)

canvas.create_rectangle(0, 0, canvas.winfo_width(), canvas.winfo_height(), fill=TRANSCOLOUR, outline=TRANSCOLOUR)

def on_resize(evt):
    tk.configure(width=evt.width,height=evt.height)
    canvas.create_rectangle(0, 0, canvas.winfo_width(), canvas.winfo_height(), fill=TRANSCOLOUR, outline=TRANSCOLOUR)
    print(canvas.winfo_width())

tk.bind('<Configure>', on_resize)

def _GifScreen():
    global i
    i += 1
    HWND = win32gui.FindWindow(None,'有趣的透明窗体-开篇了！！！')
    print(HWND)
    rect=win32gui.GetWindowRect(HWND) #获取当前窗口坐标
    rect = (rect[0]+10,rect[1]+32,rect[0]+10+ canvas.winfo_width(),rect[1]+10+canvas.winfo_height()+16)
    print(rect)
    im=ImageGrab.grab(rect) #截取目标图像
    im.save("./out/CaptureScreen_%s.jpeg" % i,'jpeg') #前面一个参数是保存路径，后面一个参数是保存格式

def GifScreen():
    thread_list = []
    t1 = threading.Thread(target=makegif)
    thread_list.append(t1)

def makegif():
    global i,image_list
    while True:
        _GifScreen()
        time.sleep(0.5)
        if i > 20:
            break;
    create_gif(image_list,'out.gif',0.5)

image_list = []
def create_gif(image_list, gif_name, duration = 1.0):
    frames = []
    for image_name in image_list:
        frames.append(imageio.imread(image_name))
    imageio.mimsave(gif_name, frames, 'GIF', duration=duration)

b = Button(tk, text='GIF截图', command=GifScreen)
b.pack()

def GifScreen():
    thread_list = []
    t1 = threading.Thread(target=makegif)
    thread_list.append(t1)

    #正式开启现线程
    for t in thread_list:
        t.setDaemon(True)
        t.start()