tkinter - Screen Resolution

[rahulnag22 at yahoo.com]

On May 10, 1:29 am, "Eric Brunel" <eric.bru... at pragmadev.com> wrote:
> On Wed, 09 May 2007 18:37:32 +0200, <rahulna... at yahoo.com> wrote:
> > Hi,
> > I have developed a GUI usingtkinter(grid geometory manager).
> > The structure is a top frame containing multiple subframes. Each
> > subframe has a combination of widgets like(Entry, label,
> > button,listboxes). The subframes are placed with a padx and pady
> > offset with regards to the other subframes. And the widgets within
> > these subframes have their own padx and pady offsets. The GUI runs
> > fine on my linux box, but on a different linux box things get wierd.
> > I see things like-
> > 1) The frame width increasing
> > 2) The widget padx translating to much bigger offsets with reference
> > to the subframe edges
> > 3) Widget widths like that for Entry become bigger
>
> > I Know its to do with the screen resolution settings and user settings
> > on different machines. Can anyone point me in the right
> > direction(before I start looking into it)as how to account for
> > different screen resolutions so as to have as uniform a GUI look as
> > possible across different user machines.
>
> [snip]
>
> For some reason, tk uses different default units for coordinates and font
> sizes: a coordinate specified as just a number is considered to be in
> pixels (a.k.a screen points); a font size specified as just a number is
> considered to be in points, i.e 1/72 inch. So these units are the same
> only if your screen resolution is exactly 72 dpi, which is usually not the
> case.
>
> If this is actually your problem, the way to correct it is quite simple:
> the tk command "tk scaling 1" tells tk that a point and a pixel are the
> same thing. To issue it, you may have to use explicitely the tcl
> interpreter used byTkinterby doing:
> aWidget.tk.call('tk', 'scaling', 1)
> where aWidget is anyTkinterwidget. This is what I had to do with Python
> 2.1; it may be easier with later Python/Tkinterversions.
>
> HTH
> --
> python -c "print ''.join([chr(154 - ord(c)) for c in
> 'U(17zX(%,5.zmz5(17l8(%,5.Z*(93-965$l7+-'])"


This is just what I watned...Thanks that works great -Rahul