TclError：无法图标化：设置了覆盖重定向标志

Question

我正在处理一个摆脱根窗口的项目。我自己做的。我让它工作了，但我无法找到最小化窗口的方法。

我尝试root.iconify()与root.root.overrideredirect(True)set 一起使用。但它给了我以下错误：TclError: can't iconify ".": override-redirect flag is set.

如何在不出现此错误的情况下最小化窗口以及它像普通根窗口一样最小化它的位置。

代码：

from Tkinter import *
import time
import os

class Application(Frame):
    def __init__(self, parent):
       Frame.__init__(self,parent)
       self.pack(fill=BOTH)

       self.create_widgets()

    def create_widgets(self):
        self.borderFrame = Frame(self, width=500, height=600, bg="Gray")
        self.borderFrame.pack_propagate(False)
        self.borderFrame.pack(side=TOP)

        self.holderFrame = Frame(self.borderFrame, width=500, height=570, bg="blue")
        self.holderFrame.pack_propagate(False)
        self.holderFrame.pack(side=BOTTOM)

        self.close = Label(self, font=("Arial", 11), bg="Gray", anchor=CENTER, text="X", cursor="hand2")
        self.close.place(x=460, y=0, width=40, height=30)

        self.min = Label(self, font=("Arial", 11), bg="Gray", anchor=CENTER, text="_", cursor="hand2")
        self.min.place(x=420, y=0, width=40, height=30)

        def hoverMin(event):
            event.widget.config(bg="lightBlue")

        def unHoverMin(event):
            event.widget.config(bg="Gray")

        self.min.bind("<Enter>", hoverMin)
        self.min.bind("<Leave>", unHoverMin)
        self.min.bind("<Button-1>", self.minimize)

        def hover(event):
            event.widget.config(bg="red")

        def unhover(event):
            event.widget.config(bg="Gray")

        self.close.bind("<Enter>", hover)
        self.close.bind("<Leave>", unhover)
        self.close.bind("<Button-1>", self.exitProgram)

        self.borderFrame.bind("<Button-1>", self.startMove)
        self.borderFrame.bind("<ButtonRelease-1>", self.stopMove)
        self.borderFrame.bind("<B1-Motion>", self.moving)

    def startMove(self, event):
        self.x = event.x
        self.y = event.y

    def stopMove(self, event):
        self.x = None
        self.y = None

    def moving(self,event):
        x = (event.x_root - self.x - self.borderFrame.winfo_rootx() + self.borderFrame.winfo_rootx())
        y = (event.y_root - self.y - self.borderFrame.winfo_rooty() + self.borderFrame.winfo_rooty())
        root.geometry("+%s+%s" % (x, y))

    def minimize(self, event):
        root.iconify()

    def exitProgram(self, event):
        os._exit(0)

root = Tk()
root.title("Draggable Root")
root.geometry("500x600")
root.overrideredirect(True)

app = Application(root)

root.mainloop()

Answer 1

调用 overrideredirect(True) 向窗口管理器声明您将处理您自己的所有窗口管理。图标化是一个窗口管理器。如果您只想隐藏窗口，则将最小化函数更改为 root.state('withdrawn') 即可。调用 root.state('normal') 再次显示窗口。

为了出现在任务栏中，您需要在调用 root.state('iconic') 之前调用 root.overrideredirect(False)，在此之前您需要调用 root.update_idletasks()。请参阅对最小化方法的更改。

为了让窗口恢复到您想要的样子，我创建了一个新方法“frame_mapped”并将其绑定到 borderFrame 上的 Map 事件。当一个小部件被几何管理器（pack/place/grid）处理时，地图事件就会发生。因此，当您单击任务栏以取消最小化时，会触发 'frame_mapped' 再次调用 overrideredirect(True)。

这是修改后的代码：

try:
    from Tkinter import *
except ImportError:
    from tkinter import *

import time
import os

class Application(Frame):
    def __init__(self, parent):
       Frame.__init__(self,parent)
       self.pack(fill=BOTH)

       self.create_widgets()

    def create_widgets(self):
        self.borderFrame = Frame(self, width=500, height=600, bg="Gray")
        self.borderFrame.pack_propagate(False)
        self.borderFrame.pack(side=TOP)

        self.holderFrame = Frame(self.borderFrame, width=500, height=570, bg="blue")
        self.holderFrame.pack_propagate(False)
        self.holderFrame.pack(side=BOTTOM)

        self.close = Label(self, font=("Arial", 11), bg="Gray", anchor=CENTER, text="X", cursor="hand2")
        self.close.place(x=460, y=0, width=40, height=30)

        self.min = Label(self, font=("Arial", 11), bg="Gray", anchor=CENTER, text="_", cursor="hand2")
        self.min.place(x=420, y=0, width=40, height=30)

        def hoverMin(event):
            event.widget.config(bg="lightBlue")

        def unHoverMin(event):
            event.widget.config(bg="Gray")

        self.min.bind("<Enter>", hoverMin)
        self.min.bind("<Leave>", unHoverMin)
        self.min.bind("<Button-1>", self.minimize)

        def hover(event):
            event.widget.config(bg="red")

        def unhover(event):
            event.widget.config(bg="Gray")

        self.close.bind("<Enter>", hover)
        self.close.bind("<Leave>", unhover)
        self.close.bind("<Button-1>", self.exitProgram)

        self.borderFrame.bind("<Button-1>", self.startMove)
        self.borderFrame.bind("<ButtonRelease-1>", self.stopMove)
        self.borderFrame.bind("<B1-Motion>", self.moving)

        self.borderFrame.bind("<Map>",self.frame_mapped)

    def startMove(self, event):
        self.x = event.x
        self.y = event.y

    def stopMove(self, event):
        self.x = None
        self.y = None

    def moving(self,event):
        x = (event.x_root - self.x - self.borderFrame.winfo_rootx() + self.borderFrame.winfo_rootx())
        y = (event.y_root - self.y - self.borderFrame.winfo_rooty() + self.borderFrame.winfo_rooty())
        root.geometry("+%s+%s" % (x, y))

    def frame_mapped(self,e):
        print(self,e)
        root.update_idletasks()
        root.overrideredirect(True)
        root.state('normal')


    def minimize(self, event):
        root.update_idletasks()
        root.overrideredirect(False)
        #root.state('withdrawn')
        root.state('iconic')

    def exitProgram(self, event):
        os._exit(0)

root = Tk()
root.title("Draggable Root")
root.geometry("500x600")
root.overrideredirect(True)

app = Application(root)

root.mainloop()