Linux Power

This post is (unfortunately) not about secret Linux power features, but just about handling wxPowerEvent with wxGTK under Linux. Until recently, such events were only generated in wxMSW, but now that the corresponding PR has been merged, wxEVT_POWER_SUSPENDED and wxEVT_POWER_RESUME can be generated when using wxGTK as well – however there is a small twist. Unlike under Microsoft Windows, they are not generated by default because trying to do anything in wxEVT_POWER_SUSPENDED handler could fail due to a race