http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/power.h

@@ -0,0 +1,111 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/power.h
+// Purpose:     functions and classes for system power management
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     2006-05-27
+// RCS-ID:      $Id: power.h 48811 2007-09-19 23:11:28Z RD $
+// Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_POWER_H_
+#define _WX_POWER_H_
+
+#include "wx/event.h"
+
+// ----------------------------------------------------------------------------
+// power management constants
+// ----------------------------------------------------------------------------
+
+enum wxPowerType
+{
+    wxPOWER_SOCKET,
+    wxPOWER_BATTERY,
+    wxPOWER_UNKNOWN
+};
+
+enum wxBatteryState
+{
+    wxBATTERY_NORMAL_STATE,    // system is fully usable
+    wxBATTERY_LOW_STATE,       // start to worry
+    wxBATTERY_CRITICAL_STATE,  // save quickly
+    wxBATTERY_SHUTDOWN_STATE,  // too late
+    wxBATTERY_UNKNOWN_STATE
+};
+
+// ----------------------------------------------------------------------------
+// wxPowerEvent is generated when the system online status changes
+// ----------------------------------------------------------------------------
+
+// currently the power events are only available under Windows, to avoid
+// compiling in the code for handling them which is never going to be invoked
+// under the other platforms, we define wxHAS_POWER_EVENTS symbol if this event
+// is available, it should be used to guard all code using wxPowerEvent
+#ifdef __WXMSW__
+
+#define wxHAS_POWER_EVENTS
+
+class WXDLLIMPEXP_BASE wxPowerEvent : public wxEvent
+{
+public:
+    wxPowerEvent(wxEventType evtType) : wxEvent(wxID_NONE, evtType)
+    {
+        m_veto = false;
+    }
+
+    // Veto the operation (only makes sense with EVT_POWER_SUSPENDING)
+    void Veto() { m_veto = true; }
+
+    bool IsVetoed() const { return m_veto; }
+
+
+    // default copy ctor, assignment operator and dtor are ok
+
+    virtual wxEvent *Clone() const { return new wxPowerEvent(*this); }
+
+private:
+    bool m_veto;
+
+#if wxABI_VERSION >= 20806
+    DECLARE_ABSTRACT_CLASS(wxPowerEvent)
+#endif
+};
+
+BEGIN_DECLARE_EVENT_TYPES()
+    DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPENDING, 406)
+    DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPENDED, 407)
+    DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_BASE, wxEVT_POWER_SUSPEND_CANCEL, 408)
+    DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_BASE, wxEVT_POWER_RESUME, 444)
+END_DECLARE_EVENT_TYPES()
+
+typedef void (wxEvtHandler::*wxPowerEventFunction)(wxPowerEvent&);
+
+#define wxPowerEventHandler(func) \
+    (wxObjectEventFunction)(wxEventFunction) \
+        wxStaticCastEvent(wxPowerEventFunction, &func)
+
+#define EVT_POWER_SUSPENDING(func) \
+    wx__DECLARE_EVT0(wxEVT_POWER_SUSPENDING, wxPowerEventHandler(func))
+#define EVT_POWER_SUSPENDED(func) \
+    wx__DECLARE_EVT0(wxEVT_POWER_SUSPENDED, wxPowerEventHandler(func))
+#define EVT_POWER_SUSPEND_CANCEL(func) \
+    wx__DECLARE_EVT0(wxEVT_POWER_SUSPEND_CANCEL, wxPowerEventHandler(func))
+#define EVT_POWER_RESUME(func) \
+    wx__DECLARE_EVT0(wxEVT_POWER_RESUME, wxPowerEventHandler(func))
+
+#else // no support for power events
+    #undef wxHAS_POWER_EVENTS
+#endif // support for power events/no support
+
+// ----------------------------------------------------------------------------
+// power management functions
+// ----------------------------------------------------------------------------
+
+// return the current system power state: online or offline
+WXDLLIMPEXP_BASE wxPowerType wxGetPowerType();
+
+// return approximate battery state
+WXDLLIMPEXP_BASE wxBatteryState wxGetBatteryState();
+
+#endif // _WX_POWER_H_