打开窗口和焦点文本框tkinter [英] Open window and focus textbox tkinter
问题描述
它包含一个我希望能够输入的文本框,但是我必须双击才能输入。
如何关注打开窗口时的文本框?
我的尝试:
textbox.focus_set()
,
window.grab_set()
,
window.focus_set()
$ b
编辑: ) 这是我的当前代码( 事实证明,您可以简单地调用辅助窗口的
相反, .focus_set(b
在关闭 main 窗口时产生错误:
无法调用focus命令:application has been destroyed code
tkWin
是主窗口,
def click(self,field):
import _tkinter
if field!= None:
try:
self.tkcWin = Tk()#创建窗口
self.tkcWin.focus()
self。 tkcWin.title(field)
self.tkcWin.geome try('300x100')
self.mainframe = Frame(master = self.tkcWin,background =#60BF98)
self.mainframe.place(x = 0,y = 0,width = 300 ,height = 300)
self.textb = Text(master = self.mainframe)
self.textb.place(x = 0,y = 50)
self.textb.bind( < Return>,lambda a:self.setM(field))
self.textb.bind(< Return>,lambda a:self.tkcWin.destroy(),True)
self.tkcWin.grab_set()
self.tkWin.wait_window(self.tkcWin)
self.textb.focus_set()
hwnd = self.tkcWin.winfo_id()
ctypes .windll.user32.SetFocus(hwnd)
self.tkcWin.mainloop()
除_tkinter.TclError:
self.tkcWin.destroy()
deiconify()
方法,然后控件的 focus_set()
方法:
toplevel.deiconify()
text.focus_set()
< hr>
以下是Windows的原始解决方法(不再推荐):
首先添加 import ctypes
在顶部。
继续并像以下那样集中你的小部件: text.focus_set()
获取第二个窗口的hwnd: top_hwnd = toplevel.winfo_id()
最后激活第二个窗口: ctypes.windll.user32.SetFocus(top_hwnd)
I have a (second) tkinter window, which, when opened, does not get the focus, but rather the first window remains focused (although the second window appears in front of the other). It contains a textbox which I want to be able to type in, but I have to double-click it in order to type.
How do I focus the textbox when opening the window?
My tries:
textbox.focus_set()
,
window.grab_set()
,
window.focus_set()
None of them did what I wanted to do.
EDIT:
Instead, .focus_set()
raises an error when (and only when) closing the main window: can't invoke "focus" command: application has been destroyed
This is my current code (tkWin
is the main window, tkcWin
is the second window):
def click(self, field):
import _tkinter
if field != None:
try:
self.tkcWin = Tk()#creating window
self.tkcWin.focus()
self.tkcWin.title(field)
self.tkcWin.geometry('300x100')
self.mainframe = Frame(master=self.tkcWin,background="#60BF98")
self.mainframe.place(x=0, y=0, width=300, height=300)
self.textb = Text(master=self.mainframe)
self.textb.place(x=0, y=50)
self.textb.bind("<Return>",lambda a: self.setM(field))
self.textb.bind("<Return>",lambda a: self.tkcWin.destroy(),True)
self.tkcWin.grab_set()
self.tkWin.wait_window(self.tkcWin)
self.textb.focus_set()
hwnd = self.tkcWin.winfo_id()
ctypes.windll.user32.SetFocus(hwnd)
self.tkcWin.mainloop()
except _tkinter.TclError:
self.tkcWin.destroy()
It turns out that you can simply call the secondary window's deiconify()
method and then the widget's focus_set()
method:
toplevel.deiconify()
text.focus_set()
Here's the original work-around for Windows (no longer recommended):
Start by adding import ctypes
at the top.
Go ahead and focus your widget like you have with: text.focus_set()
Get the hwnd of the second window: top_hwnd = toplevel.winfo_id()
And finally activate the second window with: ctypes.windll.user32.SetFocus(top_hwnd)
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