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windowspython-3.xwxpythondpi

How to fix blurry text in WxPython controls on Windows?

We have a Python-based application written with WxPython 4 that we build for multiple operating systems, including Windows. In Windows 10, at least in my environment (inside a VM on a high resolution monitor), the text elements in the interface are blurry:

enter image description here

I can improve the situation somewhat by setting the Windows DPI-scaling override on the application. This is indirect and suboptimal, and it seems like there should be a way to do it from WxPython more directly. However, I have not found a way to do it.

Is there any way to set DPI scaling from WxPython, or otherwise fix blurry text on Windows in WxPython 4 directly from within the application?

Solution

  • According to a message from Python Issue Tracker and what I tried in the wxPython official Hello World, Part 2 example (helloworld2.py), adding following code to your program should work:

    import ctypes
try:
    ctypes.windll.shcore.SetProcessDpiAwareness(True)
except:
    pass