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From: kwizzz on 2 Jul 2008 12:37
Dear fellow Tclers,

Just a tiny, but very annoying, problem that I encounter every time
when I execute a Tcl application with Tk on Windows (doesn't matter if
it is double clicked in explorer or executed via cmd.exe): the window
focus gets lost..

Take the following script:

package require Tk

label .l -text "Focus test on $tcl_platform(os)

Under Windows, the newly created window
does not get the focus"

button .quit -text Quit -command exit

pack .l .quit

focus .quit

bind .quit <Return> {.quit invoke}

On Unix, the new Tk window gets the main focus (title bar is
highlighted) and the Quit button has input focus. However, on Windows,
no main focus, first I have to click on the title bar in order to get
the input focus.

Tcl is 8.5.2 from ActiveState (on Windows) and regular 8.5.2 (apt)
e.g. on my Ubuntu system. My Windows is a standard Windows XP with
latest Service Packs.

Any hints?

TIA,
Chris
From: Óscar Fuentes on 2 Jul 2008 17:27
"kwizzz(a)googlemail.com" <kwizzz(a)googlemail.com> writes:

> Any hints?

Try

focus -force .quit

--
Oscar
From: Sergio Anis on 3 Jul 2008 10:52
I read somewhere that this is the normal behavior on Windows and Mac.
When you execute a program, the windows manager keeps the focus until
you explicitly give it to that program.
As far as I understand this is how the OS works.

Sergio
From: keithv on 3 Jul 2008 12:34
On Jul 3, 10:52 am, Sergio Anis <sergioa...(a)gmail.com> wrote:
> I read somewhere that this is the normal behavior on Windows and Mac.
> When you execute a program, the windows manager keeps the focus until
> you explicitly give it to that program.
> As far as I understand this is how the OS works.
>
> Sergio

This was done to prevent the problem of where you're typing
away and suddenly another window pops up and grabs the focus.
If you don't realize this has happened all your subsequent
typing gets lost.

Keith
From: Gerald W. Lester on 3 Jul 2008 12:39
keithv wrote:
> On Jul 3, 10:52 am, Sergio Anis <sergioa...(a)gmail.com> wrote:
>> I read somewhere that this is the normal behavior on Windows and Mac.
>> When you execute a program, the windows manager keeps the focus until
>> you explicitly give it to that program.
>> As far as I understand this is how the OS works.
>>
>> Sergio
>
> This was done to prevent the problem of where you're typing
> away and suddenly another window pops up and grabs the focus.
> If you don't realize this has happened all your subsequent
> typing gets lost.

Note that you can override it (with after and focus -force) but it is
considered very rude.


--
+--------------------------------+---------------------------------------+
| Gerald W. Lester |
|"The man who fights for his ideals is the man who is alive." - Cervantes|
+------------------------------------------------------------------------+
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