Scalable icons?

wxPython Users
13

By default the art provider will pass wx.DefaultSize to the CreateBitmap method. That value is wx.Size(-1, -1) so the bitmap created in ConvertToScaledBitmap is invalid, and that is why the “Failed to gain raw access to bitmap data” exception happens.

So you should pass the desired size to wx.ArtProvider.GetIcon or add some code like

if size == wx.DefaultSize: 
    ...

to CreateBitmap.