| /* |
| 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. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #ifndef SDL_POWER_DISABLED |
| #if SDL_POWER_WINDOWS |
| |
| #include "../../core/windows/SDL_windows.h" |
| |
| #include "SDL_power.h" |
| |
| SDL_bool |
| SDL_GetPowerInfo_Windows(SDL_PowerState * state, int *seconds, int *percent) |
| { |
| SYSTEM_POWER_STATUS status; |
| SDL_bool need_details = SDL_FALSE; |
| |
| /* This API should exist back to Win95. */ |
| if (!GetSystemPowerStatus(&status)) |
| { |
| /* !!! FIXME: push GetLastError() into SDL_GetError() */ |
| *state = SDL_POWERSTATE_UNKNOWN; |
| } else if (status.BatteryFlag == 0xFF) { /* unknown state */ |
| *state = SDL_POWERSTATE_UNKNOWN; |
| } else if (status.BatteryFlag & (1 << 7)) { /* no battery */ |
| *state = SDL_POWERSTATE_NO_BATTERY; |
| } else if (status.BatteryFlag & (1 << 3)) { /* charging */ |
| *state = SDL_POWERSTATE_CHARGING; |
| need_details = SDL_TRUE; |
| } else if (status.ACLineStatus == 1) { |
| *state = SDL_POWERSTATE_CHARGED; /* on AC, not charging. */ |
| need_details = SDL_TRUE; |
| } else { |
| *state = SDL_POWERSTATE_ON_BATTERY; /* not on AC. */ |
| need_details = SDL_TRUE; |
| } |
| |
| *percent = -1; |
| *seconds = -1; |
| if (need_details) { |
| const int pct = (int) status.BatteryLifePercent; |
| const int secs = (int) status.BatteryLifeTime; |
| |
| if (pct != 255) { /* 255 == unknown */ |
| *percent = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */ |
| } |
| if (secs != 0xFFFFFFFF) { /* ((DWORD)-1) == unknown */ |
| *seconds = secs; |
| } |
| } |
| |
| return SDL_TRUE; /* always the definitive answer on Windows. */ |
| } |
| |
| #endif /* SDL_POWER_WINDOWS */ |
| #endif /* SDL_POWER_DISABLED */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |