python - 如何设置窗口的大小？

Question

如何调整root窗口大小？

try:                        # In order to be able to import tkinter for
    import tkinter as tk    # either in python 2 or in python 3
except ImportError:
    import Tkinter as tk


root = tk.Tk()
tk.mainloop()

---

如何调整大小window？

try:                        # In order to be able to import tkinter for
    import tkinter as tk    # either in python 2 or in python 3
except ImportError:
    import Tkinter as tk


root = tk.Tk()
window = tk.Toplevel(root)
tk.mainloop()

Answer 1

可以使用以下方法设置窗口的大小（无论是Tk实例还是Toplevel实例）geometry：

# identical to root.geometry('256x512')
root.geometry('{}x{}'.format(256, 512))

或者：

# identical to window.geometry('512x256')
window.geometry('{}x{}'.format(512, 256))

---

此外，使用几何方法还可以确定窗口的左上角：

window.geometry('+{}+{}'.format(16, 32))

或者可能同时：

#identical to window.geometry('512x256+16+32')
window.geometry('{}x{}+{}+{}'.format(512, 256, 16, 32))

更一般地说，可以使用winfo_toplevel它来轻松地从其子级设置窗口的大小：

widget.winfo_toplevel().geometry('{}x{}+{}+{}'.format(512, 256, 16, 32))

例子

这是一个示例，它通过子小部件的引用设置窗口的大小和放置坐标：

try:                        # In order to be able to import tkinter for
    import tkinter as tk    # either in python 2 or in python 3
except ImportError:
    import Tkinter as tk


def on_button_press(widget):
    width = 512
    height = 256
    x = 16
    y = 32
    widget.winfo_toplevel().geometry('{}x{}+{}+{}'.format(width, height, x, y))


if __name__ == '__main__':
    root = tk.Tk()
    window = tk.Toplevel(root)
    button = tk.Button(window, text="Resize & Place")
    #the line below is related to calling a method when a button is pressed
    button['command'] = lambda w=button: on_button_press(w)
    button.pack()
    tk.mainloop()