将参数传递给线程.参数源自tkinter GUI中的输入

Question

我正在编写一个使用GUI运行的脚本。有两个输入字段和两个按钮，我使用threading，这样我就可以用按钮启动和停止循环，而不会冻结。输入对于循环中的某些操作是必要的，我将简化它们，因为这是一个非常长的if语句。

我从来没有做过线程，在我尝试实现它之前，这个应用程序就已经工作了。主要问题是如何将GUI的输入传递给线程？它一直给我argument not defined错误。

这是代码，任何帮助都将不胜感激：

global x
global y
def scriptOne(x, y):
print(x)
print(y)
while True:
if pyautogui.locateOnScreen('agree.png', confidence=0.85) != None:
print("Here are x&y: ", x, y)
else:
time.sleep(2)
print("Waiting")
threadx=  threading.Thread(target=scriptOne, args=(x, y))
root = tkinter.Tk()
canvas = tkinter.Canvas(root, height=(heightR*.2), width=(widthR*.2), bg="#26292c")
canvas.pack()
frame= tkinter.Frame(root, bg="#26292c")
frame.place(relx=.1, rely=.1, relwidth=.8, relheight=.8)
xEntry=tkinter.Entry(frame, bg='#c5c7c4')
xEntry.place(relx=.4, rely=.05, relwidth=.75, relheight=.15)
yEntry=tkinter.Entry(frame, bg='#c5c7c4')
yEntry.place(relx=.4, rely=.3, relwidth=.75, relheight=.15)
labelX = tkinter.Label(frame, text="Pick", padx=1, pady=1, fg="white", bg="#26292c")
labelX.place(relx=0, rely=.05, relwidth=.25, relheight=.15)
labelY = tkinter.Label(frame, text="Ban", padx=1, pady=1, fg="white", bg="#26292c")
labelY.place(relx=0, rely=.3, relwidth=.25, relheight=.15)
startScript=tkinter.Button(frame, text="Activate Script", padx=10, pady=5, fg="white", bg="#52595d", command= lambda: threadx.start(xEntry.get(),yEntry.get()))
startScript.place(relx=.05, rely=.8, relwidth=.4, relheight=.2)
endScript=tkinter.Button(frame, text="Quit Script", padx=10, pady=5, fg="white", bg="#52595d", command=exit)
endScript.place(relx=.55, rely=.8, relwidth=.4, relheight=.2)
root.mainloop()

Answer 1

最好创建另一个函数来创建Thread实例并启动它：

def start_thread():
# make sure x and y are input correctly
try:
x = int(xEntry.get().strip())
y = int(yEntry.get().strip())
except ValueError:
print('Invalid x or y value')
return
# disable the button which is associated with this function
startScript.config(state='disabled')
# create thread and start it
threading.Thread(target=scriptOne, args=(x,y), daemon=True).start()

然后将上述功能分配给startScript按钮：

startScript = tkinter.Button(frame, text="Activate Script", padx=10, pady=5,
fg="white", bg="#52595d", command=start_thread)