(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development 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/SDL2/include/SDL_power.h), but apps should _only_ `#include "SDL.h"`!

Syntax

typedef enum SDL_PowerState
{
    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;

Code Examples

if (SDL_GetPowerInfo(NULL, NULL) == SDL_POWERSTATE_ON_BATTERY) {
    printf("You should plug in your laptop before running this update.\n");
}

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CategoryAPI, CategoryAPIEnum, CategoryEnum, CategoryPower

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