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 #if !defined(__WINCE_STANDARDSDK__)
  34
  35 #ifdef __WXWINCE__
  36     typedef SYSTEM_POWER_STATUS_EX SYSTEM_POWER_STATUS;
  37     BOOL GetSystemPowerStatus(SYSTEM_POWER_STATUS *status)
  38     {
  39         return GetSystemPowerStatusEx(status, TRUE);
  40     }
  41 #endif
  42
  43 // ----------------------------------------------------------------------------
  44 // helper functions
  45 // ----------------------------------------------------------------------------
  46
  47 static inline bool wxGetPowerStatus(SYSTEM_POWER_STATUS *sps)
  48 {
  49     if ( !::GetSystemPowerStatus(sps) )
  50     {
  51         wxLogLastError(wxT("GetSystemPowerStatus()"));
  52         return false;
  53     }
  54
  55     return true;
  56 }
  57
  58 #endif
  59
  60 // ============================================================================
  61 // implementation
  62 // ============================================================================
  63
  64 wxPowerType wxGetPowerType()
  65 {
  66 #if !defined(__WINCE_STANDARDSDK__)
  67     SYSTEM_POWER_STATUS sps;
  68     if ( wxGetPowerStatus(&sps) )
  69     {
  70         switch ( sps.ACLineStatus )
  71         {
  72             case 0:
  73                 return wxPOWER_BATTERY;
  74
  75             case 1:
  76                 return wxPOWER_SOCKET;
  77
  78             default:
  79                 wxLogDebug(wxT("Unknown ACLineStatus=%u"), sps.ACLineStatus);
  80             case 255:
  81                 break;
  82         }
  83     }
  84 #endif
  85
  86     return wxPOWER_UNKNOWN;
  87 }
  88
  89 wxBatteryState wxGetBatteryState()
  90 {
  91 #if !defined(__WINCE_STANDARDSDK__)
  92     SYSTEM_POWER_STATUS sps;
  93     if ( wxGetPowerStatus(&sps) )
  94     {
  95         // there can be other bits set in the flag field ("charging" and "no
  96         // battery"), extract only those which we need here
  97         switch ( sps.BatteryFlag & 7 )
  98         {
  99             case 1:
 100                 return wxBATTERY_NORMAL_STATE;
 101
 102             case 2:
 103                 return wxBATTERY_LOW_STATE;
 104
 105             case 3:
 106                 return wxBATTERY_CRITICAL_STATE;
 107         }
 108     }
 109 #endif
 110
 111     return wxBATTERY_UNKNOWN_STATE;
 112 }