src/msw/power.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/power.cpp
   3 // Purpose:     power management functions for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     2006-05-27
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28 #endif //WX_PRECOMP
  29
  30 #include "wx/power.h"
  31 #include "wx/msw/private.h"
  32
  33 #ifdef __WXWINCE__
  34     typedef SYSTEM_POWER_STATUS_EX SYSTEM_POWER_STATUS;
  35     BOOL GetSystemPowerStatus(SYSTEM_POWER_STATUS *status)
  36     {
  37         return GetSystemPowerStatusEx(status, TRUE);
  38     }
  39 #endif
  40
  41 // ----------------------------------------------------------------------------
  42 // helper functions
  43 // ----------------------------------------------------------------------------
  44
  45 static inline bool wxGetPowerStatus(SYSTEM_POWER_STATUS *sps)
  46 {
  47     if ( !::GetSystemPowerStatus(sps) )
  48     {
  49         wxLogLastError(_T("GetSystemPowerStatus()"));
  50         return false;
  51     }
  52
  53     return true;
  54 }
  55
  56 // ============================================================================
  57 // implementation
  58 // ============================================================================
  59
  60 wxPowerType wxGetPowerType()
  61 {
  62     SYSTEM_POWER_STATUS sps;
  63     if ( wxGetPowerStatus(&sps) )
  64     {
  65         switch ( sps.ACLineStatus )
  66         {
  67             case 0:
  68                 return wxPOWER_BATTERY;
  69
  70             case 1:
  71                 return wxPOWER_SOCKET;
  72
  73             default:
  74                 wxLogDebug(_T("Unknown ACLineStatus=%u"), sps.ACLineStatus);
  75             case 255:
  76                 break;
  77         }
  78     }
  79
  80     return wxPOWER_UNKNOWN;
  81 }
  82
  83 wxBatteryState wxGetBatteryState()
  84 {
  85     SYSTEM_POWER_STATUS sps;
  86     if ( wxGetPowerStatus(&sps) )
  87     {
  88         // there can be other bits set in the flag field ("charging" and "no
  89         // battery"), extract only those which we need here
  90         switch ( sps.BatteryFlag & 7 )
  91         {
  92             case 1:
  93                 return wxBATTERY_NORMAL_STATE;
  94
  95             case 2:
  96                 return wxBATTERY_LOW_STATE;
  97
  98             case 3:
  99                 return wxBATTERY_CRITICAL_STATE;
 100         }
 101     }
 102
 103     return wxBATTERY_UNKNOWN_STATE;
 104 }