89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef SDL_power_h_
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#define SDL_power_h_
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/**
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* \file SDL_power.h
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*
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* Header for the SDL power management routines.
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*/
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#include "SDL_stdinc.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* The basic state for the system's power supply.
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*/
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typedef enum
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{
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SDL_POWERSTATE_UNKNOWN, /**< cannot determine power status */
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SDL_POWERSTATE_ON_BATTERY, /**< Not plugged in, running on the battery */
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SDL_POWERSTATE_NO_BATTERY, /**< Plugged in, no battery available */
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SDL_POWERSTATE_CHARGING, /**< Plugged in, charging battery */
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SDL_POWERSTATE_CHARGED /**< Plugged in, battery charged */
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} SDL_PowerState;
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/**
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* Get the current power supply details.
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*
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* You should never take a battery status as absolute truth. Batteries
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* (especially failing batteries) are delicate hardware, and the values
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* reported here are best estimates based on what that hardware reports. It's
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* not uncommon for older batteries to lose stored power much faster than it
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* reports, or completely drain when reporting it has 20 percent left, etc.
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*
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* Battery status can change at any time; if you are concerned with power
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* state, you should call this function frequently, and perhaps ignore changes
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* until they seem to be stable for a few seconds.
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*
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* It's possible a platform can only report battery percentage or time left
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* but not both.
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*
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* \param secs seconds of battery life left, you can pass a NULL here if you
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* don't care, will return -1 if we can't determine a value, or
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* we're not running on a battery
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* \param pct percentage of battery life left, between 0 and 100, you can pass
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* a NULL here if you don't care, will return -1 if we can't
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* determine a value, or we're not running on a battery
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* \returns an SDL_PowerState enum representing the current battery state.
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*
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* \since This function is available since SDL 2.0.0.
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*/
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extern DECLSPEC SDL_PowerState SDLCALL SDL_GetPowerInfo(int *secs, int *pct);
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* SDL_power_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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