Scaling issues with HighDPI

[lorisobi]

Problems with all elements:

• switch, checkboxes and radio buttons do not scale at all
• border radius of textboxes and buttons do not scale
• treeview height does not scale
• progress bar and scale does not scale

[rdbende]

Hi, could you check if you are experiencing this problem with the svg based theme? (you will need to install tksvg to use it) (note to self: we'll need to scale up the images before rasterizing when using the svg version).
I've never experimented with high resolution displays with Tkinter, so I don't know, what the solution could be, but I'll play around with it if I have time.

[lorisobi]

it seems to be the same with the svg version

but the scaling issue with some of the elements even exist without your theme, so it's probably something with tkinter itself

anyhow your theme is really good work, finally a way to make python gui apps beautiful

[rdbende]

Also breaks with low-DPI:

[AlanCristhian]

Add the following lines on you main app.

import sys

if sys.platform == "win32":
    try:
        import ctypes
        PROCESS_SYSTEM_DPI_AWARE = 1
        shcore = ctypes.OleDLL("shcore")
        shcore.SetProcessDpiAwareness(PROCESS_SYSTEM_DPI_AWARE)
    except (ImportError, AttributeError, OSError):
        pass

Does this solve your problem?

[rdbende]

In #76 they say, that using ctypes.windll.shcore.SetProcessDpiAwareness(True) fixes some things, but makes the scaling super weird.