SDL 2.0
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Go to the source code of this file.
Enumerations | |
enum | SDL_PowerState { SDL_POWERSTATE_UNKNOWN , SDL_POWERSTATE_ON_BATTERY , SDL_POWERSTATE_NO_BATTERY , SDL_POWERSTATE_CHARGING , SDL_POWERSTATE_CHARGED } |
Functions | |
SDL_PowerState | SDL_GetPowerInfo (int *seconds, int *percent) |
Header for the SDL power management routines.
Definition in file SDL_power.h.
enum SDL_PowerState |
The basic state for the system's power supply.
Definition at line 42 of file SDL_power.h.
SDL_PowerState SDL_GetPowerInfo | ( | int * | seconds, |
int * | percent | ||
) |
Get the current power supply details.
You should never take a battery status as absolute truth. Batteries (especially failing batteries) are delicate hardware, and the values reported here are best estimates based on what that hardware reports. It's not uncommon for older batteries to lose stored power much faster than it reports, or completely drain when reporting it has 20 percent left, etc.
Battery status can change at any time; if you are concerned with power state, you should call this function frequently, and perhaps ignore changes until they seem to be stable for a few seconds.
It's possible a platform can only report battery percentage or time left but not both.
seconds | 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 |
percent | 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 |