include/wx/msw/app.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.h
   3 // Purpose:     wxApp class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_APP_H_
  13 #define _WX_APP_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "app.h"
  17 #endif
  18
  19 #include "wx/event.h"
  20 #include "wx/icon.h"
  21
  22 class WXDLLEXPORT wxFrame;
  23 class WXDLLEXPORT wxWindow;
  24 class WXDLLEXPORT wxApp ;
  25 class WXDLLEXPORT wxKeyEvent;
  26 class WXDLLEXPORT wxLog;
  27
  28 // Represents the application. Derive OnInit and declare
  29 // a new App object to start application
  30 class WXDLLEXPORT wxApp : public wxAppBase
  31 {
  32     DECLARE_DYNAMIC_CLASS(wxApp)
  33
  34 public:
  35     wxApp();
  36     virtual ~wxApp();
  37
  38     // override base class (pure) virtuals
  39     virtual bool Initialize(int& argc, wxChar **argv);
  40     virtual void CleanUp();
  41
  42     virtual int MainLoop();
  43     virtual void ExitMainLoop();
  44     virtual bool Initialized();
  45     virtual bool Pending();
  46     virtual void Dispatch();
  47
  48     virtual bool Yield(bool onlyIfNeeded = FALSE);
  49     virtual bool ProcessIdle();
  50     virtual void WakeUpIdle();
  51
  52     virtual void SetPrintMode(int mode) { m_printMode = mode; }
  53     virtual int GetPrintMode() const { return m_printMode; }
  54
  55     // implementation only
  56     void OnIdle(wxIdleEvent& event);
  57     void OnEndSession(wxCloseEvent& event);
  58     void OnQueryEndSession(wxCloseEvent& event);
  59
  60     // Send idle event to all top-level windows.
  61     // Returns TRUE if more idle time is requested.
  62     bool SendIdleEvents();
  63
  64     // Send idle event to window and all subwindows
  65     // Returns TRUE if more idle time is requested.
  66     bool SendIdleEvents(wxWindow* win);
  67
  68 protected:
  69     int    m_printMode; // wxPRINT_WINDOWS, wxPRINT_POSTSCRIPT
  70
  71     /* Windows-specific wxApp definitions */
  72
  73 public:
  74
  75     // Implementation
  76     static bool RegisterWindowClasses();
  77     static bool UnregisterWindowClasses();
  78
  79     // message processing
  80     // ------------------
  81
  82     // process the given message
  83     virtual void DoMessage(WXMSG *pMsg);
  84
  85     // retrieve the next message from the queue and process it
  86     virtual bool DoMessage();
  87
  88     // preprocess the message
  89     virtual bool ProcessMessage(WXMSG* pMsg);
  90
  91     // idle processing
  92     // ---------------
  93
  94 #if wxUSE_RICHEDIT
  95     // initialize the richedit DLL of (at least) given version, return TRUE if
  96     // ok (Win95 has version 1, Win98/NT4 has 1 and 2, W2K has 3)
  97     static bool InitRichEdit(int version = 2);
  98 #endif // wxUSE_RICHEDIT
  99
 100     // returns 400, 470, 471 for comctl32.dll 4.00, 4.70, 4.71 or 0 if it
 101     // wasn't found at all
 102     static int GetComCtl32Version();
 103
 104 public:
 105     // the SW_XXX value to be used for the frames opened by the application
 106     // (currently seems unused which is a bug -- TODO)
 107     static int m_nCmdShow;
 108
 109 protected:
 110     // we exit the main event loop when this flag becomes false
 111     bool m_keepGoing;
 112
 113     DECLARE_EVENT_TABLE()
 114 };
 115
 116 int WXDLLEXPORT wxEntry(WXHINSTANCE hInstance, WXHINSTANCE hPrevInstance,
 117                         char *lpszCmdLine, int nCmdShow);
 118
 119 #endif // _WX_APP_H_
 120