组合框改变焦点背景和前景色

Question

我需要在未获得焦点时更改组合框输入字段的前景色和背景色。我通读了这些 this and this 但无法弄清楚该使用哪一个。

我在 Windows 10 上使用 Python 3.9.6。

这是示例代码。

import tkinter as objTK
from tkinter import ttk as objTTK

objWindow = objTK.Tk()

objStyle = objTTK.Style()
objStyle.theme_use("clam")
objStyle.configure("TCombobox", backgroundcolor="orange")
objStyle.configure("TCombobox", foregroundcolor="blue")

tMonths = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec")
cbDtRStM = objTTK.Combobox(master=objWindow, width=10, state="readonly", values=tMonths)
cbDtRStM.pack()

btnButton = objTTK.Button(master=objWindow, text="Test")
btnButton.pack()

objWindow.bind("<Escape>", lambda funcWinSum: objWindow.destroy())

objWindow.mainloop()

目前文字显示为灰色，如下图。

我想把文字设为黑色，背景设为白色。

Answer 1

我在阅读 this

后解决了这个问题

这是更新后的代码。

import tkinter as objTK
from tkinter import ttk as objTTK

objWindow = objTK.Tk()

objStyle = objTTK.Style()
objStyle.theme_use("clam")
objStyle.map("TCombobox", selectforeground=[('readonly', '!focus', 'black')], \
            selectbackground=[('readonly', '!focus', '#DCDAD5')])
tMonths = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec")
cbDtRStM = objTTK.Combobox(master=objWindow, width=10, state="readonly", values=tMonths)
cbDtRStM.pack()

btnButton = objTTK.Button(master=objWindow, text="Test")
btnButton.pack()

objWindow.bind("<Escape>", lambda funcWinSum: objWindow.destroy())

objWindow.mainloop()

组合框改变焦点背景和前景色

Combobox changing out of focus background and foreground color

combobox

tkinter

python-3.x