button scale and font

[Peter Herth]

HI Michael,

you would have to complain to the tcl/tk mailing list :). Tcl/Tk up to 8.4
including allowed the font for buttons to be set. From 8.5 there was the
ttk widget set, which at some point became the default for ltk. The ttk
widget set uses a theme engine to determine many of the rendering
parameters for widgets to achieve a "native" look. This means that a lot of
older options for the widgets got removed. You can find the documentation
for the widget here: https://www.tcl.tk/man/tcl8.6/TkCmd/ttk_button.htm

If you push :tk84 onto *features*, you get the old style widgets, otherwise
you can of course create/modify ttk themes, that should give you the
ability to configure fonts too. With bug reports like this, it also would
be very helpful if you included information about the operation system the
problem shows, the lisp you are using Ltk with, and in this case, a screen
shot.

Best regards,
Peter


On Fri, Jun 10, 2016 at 2:47 PM, Michael Acker <doby162 at gmail.com> wrote:

> When I try to set the font on a button, which is specified as a valid
> keyword arg in the docs, I get the following error:
>
> Invalid initialization argument:
>     :FONT
>
> I don't necessarily need to do anything fancy with the font in said
> button, but it's default size and font are very small even on a regular
> monitor, and my monitor is high-res, making it quite tiny. For every other
> component i can just scale with fonts, but it doesn't seem to work with
> buttons.
>
> While searching for solutions, I found this:
> https://mailman.common-lisp.net/pipermail/ltk-user/2011-August/000477.html
>
> It makes reference to setting an older version of wish in order to scale
> components? If this functionality was truly just broken by an update back
> in  2011 and never fixed, I'd like to be able to help address the bug, but
> if I am just missing something, or there is a better way of making widgets
> big enough to read, please let me know!
>
> Thanks!
>
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