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 // ----------------------------------------------------------------------------
  34 // helper functions
  35 // ----------------------------------------------------------------------------
  36
  37 static inline bool wxGetPowerStatus(SYSTEM_POWER_STATUS *sps)
  38 {
  39     if ( !::GetSystemPowerStatus(sps) )
  40     {
  41         wxLogLastError(_T("GetSystemPowerStatus()"));
  42         return false;
  43     }
  44
  45     return true;
  46 }
  47
  48 // ============================================================================
  49 // implementation
  50 // ============================================================================
  51
  52 wxPowerType wxGetPowerType()
  53 {
  54     SYSTEM_POWER_STATUS sps;
  55     if ( wxGetPowerStatus(&sps) )
  56     {
  57         switch ( sps.ACLineStatus )
  58         {
  59             case 0:
  60                 return wxPOWER_BATTERY;
  61
  62             case 1:
  63                 return wxPOWER_SOCKET;
  64
  65             default:
  66                 wxLogDebug(_T("Unknown ACLineStatus=%u"), sps.ACLineStatus);
  67             case 255:
  68                 break;
  69         }
  70     }
  71
  72     return wxPOWER_UNKNOWN;
  73 }
  74
  75 wxBatteryState wxGetBatteryState()
  76 {
  77     SYSTEM_POWER_STATUS sps;
  78     if ( wxGetPowerStatus(&sps) )
  79     {
  80         // there can be other bits set in the flag field ("charging" and "no
  81         // battery"), extract only those which we need here
  82         switch ( sps.BatteryFlag & 7 )
  83         {
  84             case 1:
  85                 return wxBATTERY_NORMAL_STATE;
  86
  87             case 2:
  88                 return wxBATTERY_LOW_STATE;
  89
  90             case 3:
  91                 return wxBATTERY_CRITICAL_STATE;
  92         }
  93     }
  94
  95     return wxBATTERY_UNKNOWN_STATE;
  96 }
  97
  98