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 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #ifndef WX_PRECOMP
  27 #endif //WX_PRECOMP
  28
  29 #include "wx/power.h"
  30 #include "wx/msw/private.h"
  31
  32 #if !defined(__WINCE_STANDARDSDK__)
  33
  34 #ifdef __WXWINCE__
  35     typedef SYSTEM_POWER_STATUS_EX SYSTEM_POWER_STATUS;
  36     BOOL GetSystemPowerStatus(SYSTEM_POWER_STATUS *status)
  37     {
  38         return GetSystemPowerStatusEx(status, TRUE);
  39     }
  40 #endif
  41
  42 // ----------------------------------------------------------------------------
  43 // helper functions
  44 // ----------------------------------------------------------------------------
  45
  46 static inline bool wxGetPowerStatus(SYSTEM_POWER_STATUS *sps)
  47 {
  48     if ( !::GetSystemPowerStatus(sps) )
  49     {
  50         wxLogLastError(wxT("GetSystemPowerStatus()"));
  51         return false;
  52     }
  53
  54     return true;
  55 }
  56
  57 #endif
  58
  59 // ============================================================================
  60 // implementation
  61 // ============================================================================
  62
  63 wxPowerType wxGetPowerType()
  64 {
  65 #if !defined(__WINCE_STANDARDSDK__)
  66     SYSTEM_POWER_STATUS sps;
  67     if ( wxGetPowerStatus(&sps) )
  68     {
  69         switch ( sps.ACLineStatus )
  70         {
  71             case 0:
  72                 return wxPOWER_BATTERY;
  73
  74             case 1:
  75                 return wxPOWER_SOCKET;
  76
  77             default:
  78                 wxLogDebug(wxT("Unknown ACLineStatus=%u"), sps.ACLineStatus);
  79             case 255:
  80                 break;
  81         }
  82     }
  83 #endif
  84
  85     return wxPOWER_UNKNOWN;
  86 }
  87
  88 wxBatteryState wxGetBatteryState()
  89 {
  90 #if !defined(__WINCE_STANDARDSDK__)
  91     SYSTEM_POWER_STATUS sps;
  92     if ( wxGetPowerStatus(&sps) )
  93     {
  94         // there can be other bits set in the flag field ("charging" and "no
  95         // battery"), extract only those which we need here
  96         switch ( sps.BatteryFlag & 7 )
  97         {
  98             case 1:
  99                 return wxBATTERY_NORMAL_STATE;
 100
 101             case 2:
 102                 return wxBATTERY_LOW_STATE;
 103
 104             case 3:
 105                 return wxBATTERY_CRITICAL_STATE;
 106         }
 107     }
 108 #endif
 109
 110     return wxBATTERY_UNKNOWN_STATE;
 111 }