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display<-power_state
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class display
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display<-contained_in
display<-contains
display<-convert
display<-depth
display<-size
display<-width
display<-height
display<-system_theme
display<-theme
display<-paste
display<-selection
display<-selection_targets
display<-has_screen_keyboard_support
display<-screen_keyboard_shown
display<-input_devices
display<-power_state
display<-battery_percent
display<-battery_seconds
display<-preferred_locales
display<-bell_sound
display<-sound_file_extensions
display<-image_save_formats
display<-video_decoders
display<-video_encoders
display<-video_backend
display<-cameras
display<-gamepads
display<-sdl_test_gamepad
display <-power_state:
->
{unknown,on_battery,no_battery,charging,charged}
Whether the system runs on a battery and, if so, whether it is charging.