SDL/include/SDL_power.h
Ryan C. Gordon b72938c861 Windows: Always set the system timer resolution to 1ms by default.
An existing hint lets apps that don't need the timer resolution changed avoid
this, to save battery, etc, but this fixes several problems in timing, audio
callbacks not firing fast enough, etc.

Fixes Bugzilla #2944.
2015-04-20 12:22:44 -04:00

76 lines
2.4 KiB
C

/*
Simple DirectMedia Layer
Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef _SDL_power_h
#define _SDL_power_h
/**
* \file SDL_power.h
*
* Header for the SDL power management routines.
*/
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief The basic state for the system's power supply.
*/
typedef enum
{
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;
/**
* \brief Get the current power supply details.
*
* \param secs Seconds of battery life left. You can pass a NULL here if
* you don't care. Will return -1 if we can't determine a
* value, or we're not running on a battery.
*
* \param pct Percentage of battery life left, between 0 and 100. You can
* pass a NULL here if you don't care. Will return -1 if we
* can't determine a value, or we're not running on a battery.
*
* \return The state of the battery (if any).
*/
extern DECLSPEC SDL_PowerState SDLCALL SDL_GetPowerInfo(int *secs, int *pct);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_power_h */
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