dlls/kernel32/powermgnt.c

   1 /*
   2  * Copyright 1995 Thomas Sandford (tdgsandf@prds-grn.demon.co.uk)
   3  * Copyright 2003 Dimitrie O. Paun
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <stdarg.h>
  21
  22 #include "windef.h"
  23 #include "winbase.h"
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(powermgnt);
  27
  28 /******************************************************************************
  29  *           GetDevicePowerState   (KERNEL32.@)
  30  */
  31 BOOL WINAPI GetDevicePowerState(HANDLE hDevice, BOOL* pfOn)
  32 {
  33     WARN("(hDevice %p pfOn %p): stub\n", hDevice, pfOn);
  34     return TRUE; /* no information */
  35 }
  36
  37 /***********************************************************************
  38  *           GetSystemPowerStatus      (KERNEL32.@)
  39  */
  40 BOOL WINAPI GetSystemPowerStatus(LPSYSTEM_POWER_STATUS sps_ptr)
  41 {
  42     WARN("(): stub, harmless.\n");
  43     return FALSE;   /* no power management support */
  44 }
  45
  46 /***********************************************************************
  47  *           IsSystemResumeAutomatic   (KERNEL32.@)
  48  */
  49 BOOL WINAPI IsSystemResumeAutomatic(void)
  50 {
  51     WARN("(): stub, harmless.\n");
  52     return FALSE;
  53 }
  54
  55 /***********************************************************************
  56  *           RequestWakeupLatency      (KERNEL32.@)
  57  */
  58 BOOL WINAPI RequestWakeupLatency(LATENCY_TIME latency)
  59 {
  60     WARN("(): stub, harmless.\n");
  61     return TRUE;
  62 }
  63
  64 /***********************************************************************
  65  *           SetSystemPowerState      (KERNEL32.@)
  66  */
  67 BOOL WINAPI SetSystemPowerState(BOOL suspend_or_hibernate,
  68                                   BOOL force_flag)
  69 {
  70     WARN("(): stub, harmless.\n");
  71     /* suspend_or_hibernate flag: w95 does not support
  72        this feature anyway */
  73
  74     for ( ;0; )
  75     {
  76         if ( force_flag )
  77         {
  78         }
  79         else
  80         {
  81         }
  82     }
  83     return TRUE;
  84 }
  85
  86 /***********************************************************************
  87  * SetThreadExecutionState (KERNEL32.@)
  88  *
  89  * Informs the system that activity is taking place for
  90  * power management purposes.
  91  */
  92 EXECUTION_STATE WINAPI SetThreadExecutionState(EXECUTION_STATE flags)
  93 {
  94     static EXECUTION_STATE current =
  95         ES_SYSTEM_REQUIRED | ES_DISPLAY_REQUIRED | ES_USER_PRESENT;
  96     EXECUTION_STATE old = current;
  97
  98     WARN("(0x%x): stub, harmless.\n", flags);
  99
 100     if (!(current & ES_CONTINUOUS) || (flags & ES_CONTINUOUS))
 101         current = flags;
 102     return old;
 103 }