###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_PowerState The basic state for the system's power supply. ## Header File Defined in [SDL_power.h](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_power.h), but apps should use `#include ` ## Syntax ```c typedef enum SDL_PowerState { SDL_POWERSTATE_ERROR = -1, /**< error determining power status */ SDL_POWERSTATE_UNKNOWN, /**< cannot determine power status */ SDL_POWERSTATE_ON_BATTERY, /**< Not plugged in, running on the battery */ SDL_POWERSTATE_NO_BATTERY, /**< Plugged in, no battery available */ SDL_POWERSTATE_CHARGING, /**< Plugged in, charging battery */ SDL_POWERSTATE_CHARGED /**< Plugged in, battery charged */ } SDL_PowerState; ``` ## Remarks These are results returned by [SDL_GetPowerInfo](SDL_GetPowerInfo)(). ## Version This enum is available since SDL 3.0.0 ## Code Examples ```c if (SDL_GetPowerInfo(NULL, NULL) == SDL_POWERSTATE_ON_BATTERY) { SDL_Log("You should plug in your laptop before running this update."); } ``` ---- [CategoryAPI](CategoryAPI), [CategoryAPIEnum](CategoryAPIEnum)