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
  32 // ----------------------------------------------------------------------------
  33 // helper functions
  34 // ----------------------------------------------------------------------------
  35
  36 static inline bool wxGetPowerStatus(SYSTEM_POWER_STATUS *sps)
  37 {
  38     if ( !::GetSystemPowerStatus(sps) )
  39     {
  40         wxLogLastError(_T("GetSystemPowerStatus()"));
  41         return false;
  42     }
  43
  44     return true;
  45 }
  46
  47 // ============================================================================
  48 // implementation
  49 // ============================================================================
  50
  51 wxPowerType wxGetPowerType()
  52 {
  53     SYSTEM_POWER_STATUS sps;
  54     if ( wxGetPowerStatus(&sps) )
  55     {
  56         switch ( sps.ACLineStatus )
  57         {
  58             case 0:
  59                 return wxPOWER_BATTERY;
  60
  61             case 1:
  62                 return wxPOWER_SOCKET;
  63
  64             default:
  65                 wxLogDebug(_T("Unknown ACLineStatus=%u"), sps.ACLineStatus);
  66             case 255:
  67                 break;
  68         }
  69     }
  70
  71     return wxPOWER_UNKNOWN;
  72 }
  73
  74 wxBatteryState wxGetBatteryState()
  75 {
  76     SYSTEM_POWER_STATUS sps;
  77     if ( wxGetPowerStatus(&sps) )
  78     {
  79         // there can be other bits set in the flag field ("charging" and "no
  80         // battery"), extract only those which we need here
  81         switch ( sps.BatteryFlag & 7 )
  82         {
  83             case 1:
  84                 return wxBATTERY_NORMAL_STATE;
  85
  86             case 2:
  87                 return wxBATTERY_LOW_STATE;
  88
  89             case 3:
  90                 return wxBATTERY_CRITICAL_STATE;
  91         }
  92     }
  93
  94     return wxBATTERY_UNKNOWN_STATE;
  95 }
  96
  97