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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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 void WakeUpIdle();
  50
  51     virtual void SetPrintMode(int mode) { m_printMode = mode; }
  52     virtual int GetPrintMode() const { return m_printMode; }
  53
  54     // implementation only
  55     void OnIdle(wxIdleEvent& event);
  56     void OnEndSession(wxCloseEvent& event);
  57     void OnQueryEndSession(wxCloseEvent& event);
  58
  59 protected:
  60     int    m_printMode; // wxPRINT_WINDOWS, wxPRINT_POSTSCRIPT
  61
  62     /* Windows-specific wxApp definitions */
  63
  64 public:
  65
  66     // Implementation
  67     static bool RegisterWindowClasses();
  68     static bool UnregisterWindowClasses();
  69
  70     // message processing
  71     // ------------------
  72
  73     // process the given message
  74     virtual void DoMessage(WXMSG *pMsg);
  75
  76     // retrieve the next message from the queue and process it
  77     virtual bool DoMessage();
  78
  79     // preprocess the message
  80     virtual bool ProcessMessage(WXMSG* pMsg);
  81
  82     // idle processing
  83     // ---------------
  84
  85 #if wxUSE_RICHEDIT
  86     // initialize the richedit DLL of (at least) given version, return TRUE if
  87     // ok (Win95 has version 1, Win98/NT4 has 1 and 2, W2K has 3)
  88     static bool InitRichEdit(int version = 2);
  89 #endif // wxUSE_RICHEDIT
  90
  91     // returns 400, 470, 471 for comctl32.dll 4.00, 4.70, 4.71 or 0 if it
  92     // wasn't found at all
  93     static int GetComCtl32Version();
  94
  95 public:
  96     // the SW_XXX value to be used for the frames opened by the application
  97     // (currently seems unused which is a bug -- TODO)
  98     static int m_nCmdShow;
  99
 100 protected:
 101     // we exit the main event loop when this flag becomes false
 102     bool m_keepGoing;
 103
 104     DECLARE_EVENT_TABLE()
 105     DECLARE_NO_COPY_CLASS(wxApp)
 106 };
 107
 108 int WXDLLEXPORT wxEntry(WXHINSTANCE hInstance, WXHINSTANCE hPrevInstance,
 109                         char *lpszCmdLine, int nCmdShow);
 110
 111 #endif // _WX_APP_H_
 112