Problems with OS X 'retina' displays

wxPython Users
1

I tried to build a simple UI on a ‘retina’ Macbook Pro, using wxpython ‘3.0.3.dev2043+6aacc38’. wxpython seems to have some problems detecting the resolution of the screen.

  1. When I try to create a retina-resolution wx.adv.TaskBarIcon on the menu bar (using TBI_CUSTOM_STATUSITEM), the icon is down sampled from 32x32 to 16x16 before it is displayed.

  2. When I create a wx.Frame, the frame is correctly displayed at retina resolution, but if I query the resolution with frame.GetContentScaleFactor(), it returns 1.00.

It seems like wx is failing to correctly detect the screen resolution.

Ben

Here is the code:

import wx

from wx.adv import TaskBarIcon, TBI_CUSTOM_STATUSITEM

app = wx.App(False)

statusicon.png is a 32x32 pixel png, but using the following code

it gets downsampled to 16x16 before it appears on the menu bar

icon_file = icon_file = ‘statusicon.png’

icon = wx.Icon(icon_file, wx.BITMAP_TYPE_ANY)

TaskBarIcon(TBI_CUSTOM_STATUSITEM).SetIcon(icon)

This frame appears in retina resolution,

suggesting that it is using a scale factor of 2, but

but GetContentScaleFactor, returns 1.00

frame = wx.Frame(None, wx.ID_ANY, “Window”)

frame.Show(True)

sf = frame.GetContentScaleFactor()

wx.MessageDialog(None, ‘frame.GetContentScaleFactor()=%f’ % sf).ShowModal()