adding scroll wheel support

[wxWidgets.git] / src / msw / app.cpp

diff --git a/src/msw/app.cpp b/src/msw/app.cpp
index 2b69e913004dfc9dd2431da74cb3505cca1f3dcf..342045001abe0e0c4be0d9ec8e2268f72ccbbeab 100644 (file)
--- a/src/msw/app.cpp
+++ b/src/msw/app.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        app.cpp
+// Name:        src/msw/app.cpp

 // Purpose:     wxApp
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxApp
 // Author:      Julian Smart
 // Modified by:


@@ -17,10 +17,6 @@
 // headers
 // ---------------------------------------------------------------------------
 
 // headers
 // ---------------------------------------------------------------------------
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "app.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -29,6 +25,8 @@
 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

+    #include "wx/msw/wrapcctl.h"
+    #include "wx/dynarray.h"

     #include "wx/frame.h"
     #include "wx/app.h"
     #include "wx/utils.h"
     #include "wx/frame.h"
     #include "wx/app.h"
     #include "wx/utils.h"


@@ -42,18 +40,23 @@
     #include "wx/dialog.h"
     #include "wx/msgdlg.h"
     #include "wx/intl.h"
     #include "wx/dialog.h"
     #include "wx/msgdlg.h"
     #include "wx/intl.h"

-    #include "wx/dynarray.h"
-    #include "wx/wxchar.h"
-    #include "wx/icon.h"
+    #include "wx/crt.h"

     #include "wx/log.h"
     #include "wx/log.h"

+    #include "wx/module.h"

 #endif
 
 #include "wx/apptrait.h"
 #include "wx/filename.h"
 #endif
 
 #include "wx/apptrait.h"
 #include "wx/filename.h"

-#include "wx/module.h"

 #include "wx/dynlib.h"
 #include "wx/dynlib.h"

+#include "wx/evtloop.h"
+#include "wx/thread.h"
+#include "wx/scopeguard.h"
+#include "wx/vector.h"

 
 #include "wx/msw/private.h"
 
 #include "wx/msw/private.h"

+#include "wx/msw/dc.h"
+#include "wx/msw/ole/oleutils.h"
+#include "wx/msw/private/timer.h"

 
 #if wxUSE_TOOLTIPS
     #include "wx/tooltip.h"
 
 #if wxUSE_TOOLTIPS
     #include "wx/tooltip.h"


@@ -61,12 +64,17 @@
 
 // OLE is used for drag-and-drop, clipboard, OLE Automation..., but some
 // compilers don't support it (missing headers, libs, ...)
 
 // OLE is used for drag-and-drop, clipboard, OLE Automation..., but some
 // compilers don't support it (missing headers, libs, ...)

-#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__) || defined(__SALFORDC__)
+#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__)

     #undef wxUSE_OLE
 
     #define  wxUSE_OLE 0
 #endif // broken compilers
 
     #undef wxUSE_OLE
 
     #define  wxUSE_OLE 0
 #endif // broken compilers
 

+#if defined(__POCKETPC__) || defined(__SMARTPHONE__)
+    #include <ole2.h>
+    #include <aygshell.h>
+#endif
+

 #if wxUSE_OLE
     #include <ole2.h>
 #endif
 #if wxUSE_OLE
     #include <ole2.h>
 #endif


@@ -74,34 +82,60 @@
 #include <string.h>
 #include <ctype.h>
 
 #include <string.h>
 #include <ctype.h>
 

-#include "wx/msw/wrapcctl.h"
-
-#if (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) && \
-    !defined(__CYGWIN__) && !defined(__DIGITALMARS__) && !defined(__WXWINCE__) && \
-    (!defined(_MSC_VER) || (_MSC_VER > 1100))
-    #include <shlwapi.h>
+#include "wx/msw/missing.h"
+
+// instead of including <shlwapi.h> which is not part of the core SDK and not
+// shipped at all with other compilers, we always define the parts of it we
+// need here ourselves
+//
+// NB: DLLVER_PLATFORM_WINDOWS will be defined if shlwapi.h had been somehow
+//     included already
+#ifndef DLLVER_PLATFORM_WINDOWS
+    // hopefully we don't need to change packing as DWORDs should be already
+    // correctly aligned
+    struct DLLVERSIONINFO
+    {
+        DWORD cbSize;
+        DWORD dwMajorVersion;                   // Major version
+        DWORD dwMinorVersion;                   // Minor version
+        DWORD dwBuildNumber;                    // Build number
+        DWORD dwPlatformID;                     // DLLVER_PLATFORM_*
+    };
+
+    typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *);
+#endif // defined(DLLVERSIONINFO)
+
+#ifndef ATTACH_PARENT_PROCESS
+    #define ATTACH_PARENT_PROCESS ((DWORD)-1)

 #endif
 
 // ---------------------------------------------------------------------------
 // global variables
 // ---------------------------------------------------------------------------
 
 #endif
 
 // ---------------------------------------------------------------------------
 // global variables
 // ---------------------------------------------------------------------------
 

-extern wxList WXDLLEXPORT wxPendingDelete;
-

 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
 extern void wxSetKeyboardHook(bool doIt);
 #endif
 
 #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
 extern void wxSetKeyboardHook(bool doIt);
 #endif
 

-// NB: all "NoRedraw" classes must have the same names as the "normal" classes
-//     with NR suffix - wxWindow::MSWCreate() supposes this
-const wxChar *wxCanvasClassName        = wxT("wxWindowClass");
-const wxChar *wxCanvasClassNameNR      = wxT("wxWindowClassNR");
-const wxChar *wxMDIFrameClassName      = wxT("wxMDIFrameClass");
-const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
-const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
-const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
+// because of mingw32 4.3 bug this struct can't be inside the namespace below:
+// see http://article.gmane.org/gmane.comp.lib.wxwidgets.devel/110282
+struct ClassRegInfo
+{
+    // the base name of the class: this is used to construct the unique name in
+    // RegisterClassWithUniqueNames()
+    wxString basename;
+
+    // the name of the registered class with and without CS_[HV]REDRAW styles
+    wxString regname,
+             regnameNR;
+};
+
+namespace
+{
+
+wxVector<ClassRegInfo> gs_regClassesInfo;

 
 

-HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
+} // anonymous namespace

 
 // ----------------------------------------------------------------------------
 // private functions
 
 // ----------------------------------------------------------------------------
 // private functions


@@ -175,7 +209,7 @@ void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
 {
     wxEndBusyCursor();
 
 {
     wxEndBusyCursor();
 

-    const ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig;
+    ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig;

 
     delete data->wd;
 
 
     delete data->wd;
 


@@ -183,342 +217,554 @@ void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig)
     // the other windows reenabled, the activation is going to return to the
     // window which had had it before
     data->winActive->Destroy();
     // the other windows reenabled, the activation is going to return to the
     // window which had had it before
     data->winActive->Destroy();

+
+    // also delete the temporary data object itself
+    delete data;

 }
 
 bool wxGUIAppTraits::DoMessageFromThreadWait()
 {
     // we should return false only if the app should exit, i.e. only if
     // Dispatch() determines that the main event loop should terminate
 }
 
 bool wxGUIAppTraits::DoMessageFromThreadWait()
 {
     // we should return false only if the app should exit, i.e. only if
     // Dispatch() determines that the main event loop should terminate

-    return !wxTheApp || wxTheApp->Dispatch();
+    wxEventLoopBase * const evtLoop = wxEventLoop::GetActive();
+    if ( !evtLoop || !evtLoop->Pending() )
+    {
+        // no events means no quit event
+        return true;
+    }
+
+    return evtLoop->Dispatch();
+}
+
+DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread)
+{
+    // if we don't have a running event loop, we shouldn't wait for the
+    // messages as we never remove them from the message queue and so we enter
+    // an infinite loop as MsgWaitForMultipleObjects() keeps returning
+    // WAIT_OBJECT_0 + 1
+    if ( !wxEventLoop::GetActive() )
+        return DoSimpleWaitForThread(hThread);
+
+    return ::MsgWaitForMultipleObjects
+             (
+               1,                   // number of objects to wait for
+               (HANDLE *)&hThread,  // the objects
+               false,               // wait for any objects, not all
+               INFINITE,            // no timeout
+               QS_ALLINPUT |        // return as soon as there are any events
+               QS_ALLPOSTMESSAGE
+             );

 }
 
 }
 

-wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo()
+wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const

 {
 {

-    static wxToolkitInfo info;
-    wxToolkitInfo& baseInfo = wxAppTraits::GetToolkitInfo();
-    info.versionMajor = baseInfo.versionMajor;
-    info.versionMinor = baseInfo.versionMinor;
-    info.os = baseInfo.os;
-    info.shortName = _T("msw");
-    info.name = _T("wxMSW");
-#ifdef __WXUNIVERSAL__
-    info.shortName << _T("univ");
-    info.name << _T("/wxUniversal");
+    OSVERSIONINFO info;
+    wxZeroMemory(info);
+
+    // on Windows, the toolkit version is the same of the OS version
+    // as Windows integrates the OS kernel with the GUI toolkit.
+    info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+    if ( ::GetVersionEx(&info) )
+    {
+        if ( majVer )
+            *majVer = info.dwMajorVersion;
+        if ( minVer )
+            *minVer = info.dwMinorVersion;
+    }
+
+#if defined(__WXHANDHELD__) || defined(__WXWINCE__)
+    return wxPORT_WINCE;
+#else
+    return wxPORT_MSW;

 #endif
 #endif

-    return info;

 }
 
 }
 

-// ===========================================================================
-// wxApp implementation
-// ===========================================================================
+#if wxUSE_TIMER

 
 

-int wxApp::m_nCmdShow = SW_SHOWNORMAL;
+wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
+{
+    return new wxMSWTimerImpl(timer);
+}
+
+#endif // wxUSE_TIMER
+
+wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
+{
+    return new wxEventLoop;
+}

 
 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------

-// wxWin macros
+// Stuff for using console from the GUI applications

 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
+#ifndef __WXWINCE__

 
 

-BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
-    EVT_IDLE(wxApp::OnIdle)
-    EVT_END_SESSION(wxApp::OnEndSession)
-    EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
-END_EVENT_TABLE()
+#include <wx/dynlib.h>

 
 

-// class to ensure that wxAppBase::CleanUp() is called if our Initialize()
-// fails
-class wxCallBaseCleanup
+namespace

 {
 {

-public:
-    wxCallBaseCleanup(wxApp *app) : m_app(app) { }
-    ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }

 
 

-    void Dismiss() { m_app = NULL; }
+/*
+    Helper class to manipulate console from a GUI app.

 
 

-private:
-    wxApp *m_app;
-};
+    Notice that console output is available in the GUI app only if:
+    - AttachConsole() returns TRUE (which means it never works under pre-XP)
+    - we have a valid STD_ERROR_HANDLE
+    - command history hasn't been changed since our startup

 
 

-//// Initialize
-bool wxApp::Initialize(int& argc, wxChar **argv)
+    To check if all these conditions are verified, you need to simple call
+    IsOkToUse(). It will check the first two conditions above the first time it
+    is called (and if this fails, the subsequent calls will return immediately)
+    and also recheck the last one every time it is called.
+ */
+class wxConsoleStderr

 {
 {

-    if ( !wxAppBase::Initialize(argc, argv) )
-        return false;
+public:
+    // default ctor does nothing, call Init() before using this class
+    wxConsoleStderr()
+    {
+        m_hStderr = INVALID_HANDLE_VALUE;
+        m_historyLen =
+        m_dataLen =
+        m_dataLine = 0;

 
 

-    // ensure that base cleanup is done if we return too early
-    wxCallBaseCleanup callBaseCleanup(this);
+        m_ok = -1;
+    }

 
 

-    // the first thing to do is to check if we're trying to run an Unicode
-    // program under Win9x w/o MSLU emulation layer - if so, abort right now
-    // as it has no chance to work
-#if wxUSE_UNICODE && !wxUSE_UNICODE_MSLU
-    if ( wxGetOsVersion() != wxWINDOWS_NT && wxGetOsVersion() != wxWINDOWS_CE )
+    ~wxConsoleStderr()

     {
     {

-        // note that we can use MessageBoxW() as it's implemented even under
-        // Win9x - OTOH, we can't use wxGetTranslation() because the file APIs
-        // used by wxLocale are not
-        ::MessageBox
-        (
-         NULL,
-         _T("This program uses Unicode and requires Windows NT/2000/XP/CE.\nProgram aborted."),
-         _T("wxWindows Fatal Error"),
-         MB_ICONERROR | MB_OK
-        );
-
-        return FALSE;
+        if ( m_hStderr != INVALID_HANDLE_VALUE )
+        {
+            if ( !::FreeConsole() )
+            {
+                wxLogLastError(_T("FreeConsole"));
+            }
+        }

     }
     }

-#endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU

 
 

-#if defined(__WIN95__) && !defined(__WXMICROWIN__)
-    InitCommonControls();
-#endif // __WIN95__
-
-#if wxUSE_OLE || wxUSE_DRAG_AND_DROP
+    // return true if we were successfully initialized and there had been no
+    // console activity which would interfere with our output since then
+    bool IsOkToUse() const
+    {
+        if ( m_ok == -1 )
+        {
+            wxConsoleStderr * const self = const_cast<wxConsoleStderr *>(this);
+            self->m_ok = self->DoInit();

 
 

-#ifdef __WIN16__
-    // for OLE, enlarge message queue to be as large as possible
-    int iMsg = 96;
-    while (!SetMessageQueue(iMsg) && (iMsg -= 8))
-        ;
-#endif // Win16
+            // no need to call IsHistoryUnchanged() as we just initialized
+            // m_history anyhow
+            return m_ok == 1;
+        }

 
 

-#if wxUSE_OLE
-    // we need to initialize OLE library
-#ifdef __WXWINCE__
-    if ( FAILED(::CoInitializeEx(NULL, COINIT_MULTITHREADED)) )
-        wxLogError(_("Cannot initialize OLE"));
-#else
-    if ( FAILED(::OleInitialize(NULL)) )
-        wxLogError(_("Cannot initialize OLE"));
-#endif
-#endif
+        return m_ok && IsHistoryUnchanged();
+    }

 
 

-#endif // wxUSE_OLE

 
 

-#if wxUSE_CTL3D
-    if (!Ctl3dRegister(wxhInstance))
-        wxLogError(wxT("Cannot register CTL3D"));
+    // output the provided text on the console, return true if ok
+    bool Write(const wxString& text);

 
 

-    Ctl3dAutoSubclass(wxhInstance);
-#endif // wxUSE_CTL3D
+private:
+    // called by Init() once only to do the real initialization
+    bool DoInit();

 
 

-    RegisterWindowClasses();
+    // retrieve the command line history into the provided buffer and return
+    // its length
+    int GetCommandHistory(wxWxCharBuffer& buf) const;

 
 

-#if defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-    // Create the brush for disabling bitmap buttons
+    // check if the console history has changed
+    bool IsHistoryUnchanged() const;

 
 

-    LOGBRUSH lb;
-    lb.lbStyle = BS_PATTERN;
-    lb.lbColor = 0;
-    lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") );
-    if ( lb.lbHatch )
-    {
-        wxDisableButtonBrush = ::CreateBrushIndirect( & lb );
-        ::DeleteObject( (HGDIOBJ)lb.lbHatch );
-    }
-    //else: wxWindows resources are probably not linked in
-#endif
+    int m_ok;                   // initially -1, set to true or false by Init()

 
 

-#if wxUSE_PENWINDOWS
-    wxRegisterPenWin();
-#endif
+    wxDynamicLibrary m_dllKernel32;

 
 

-    wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
+    HANDLE m_hStderr;           // console handle, if it's valid we must call
+                                // FreeConsole() (even if m_ok != 1)

 
 

-    // This is to foil optimizations in Visual C++ that throw out dummy.obj.
-    // PLEASE DO NOT ALTER THIS.
-#if defined(__VISUALC__) && defined(__WIN16__) && !defined(WXMAKINGDLL)
-    extern char wxDummyChar;
-    if (wxDummyChar) wxDummyChar++;
-#endif
+    wxWxCharBuffer m_history;   // command history on startup
+    int m_historyLen;           // length command history buffer

 
 

-#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-    wxSetKeyboardHook(TRUE);
-#endif
+    wxCharBuffer m_data;        // data between empty line and cursor position
+    int m_dataLen;              // length data buffer
+    int m_dataLine;             // line offset

 
 

-    callBaseCleanup.Dismiss();
+    typedef DWORD (WINAPI *GetConsoleCommandHistory_t)(LPTSTR sCommands,
+                                                       DWORD nBufferLength,
+                                                       LPCTSTR sExeName);
+    typedef DWORD (WINAPI *GetConsoleCommandHistoryLength_t)(LPCTSTR sExeName);

 
 

-    return true;
-}
+    GetConsoleCommandHistory_t m_pfnGetConsoleCommandHistory;
+    GetConsoleCommandHistoryLength_t m_pfnGetConsoleCommandHistoryLength;

 
 

-// ---------------------------------------------------------------------------
-// RegisterWindowClasses
-// ---------------------------------------------------------------------------
+    DECLARE_NO_COPY_CLASS(wxConsoleStderr)
+};

 
 

-// TODO we should only register classes really used by the app. For this it
-//      would be enough to just delay the class registration until an attempt
-//      to create a window of this class is made.
-bool wxApp::RegisterWindowClasses()
+bool wxConsoleStderr::DoInit()

 {
 {

-    WNDCLASS wndclass;
-    wxZeroMemory(wndclass);
+    HANDLE hStderr = ::GetStdHandle(STD_ERROR_HANDLE);

 
 

-    // for each class we register one with CS_(V|H)REDRAW style and one
-    // without for windows created with wxNO_FULL_REDRAW_ON_REPAINT flag
-    static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
-    static const long styleNoRedraw = CS_DBLCLKS;
+    if ( hStderr == INVALID_HANDLE_VALUE || !hStderr )
+        return false;

 
 

-    // the fields which are common to all classes
-    wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
-    wndclass.hInstance     = wxhInstance;
-    wndclass.hCursor       = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
+    if ( !m_dllKernel32.Load(_T("kernel32.dll")) )
+        return false;
+
+    typedef BOOL (WINAPI *AttachConsole_t)(DWORD dwProcessId);
+    AttachConsole_t wxDL_INIT_FUNC(pfn, AttachConsole, m_dllKernel32);
+
+    if ( !pfnAttachConsole || !pfnAttachConsole(ATTACH_PARENT_PROCESS) )
+        return false;
+
+    // console attached, set m_hStderr now to ensure that we free it in the
+    // dtor
+    m_hStderr = hStderr;
+
+    wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistory, m_dllKernel32);
+    if ( !m_pfnGetConsoleCommandHistory )
+        return false;
+
+    wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistoryLength, m_dllKernel32);
+    if ( !m_pfnGetConsoleCommandHistoryLength )
+        return false;

 
 

-    // Register the frame window class.
-    wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1);
-    wndclass.lpszClassName = wxCanvasClassName;
-    wndclass.style         = styleNormal;
+    // remember the current command history to be able to compare with it later
+    // in IsHistoryUnchanged()
+    m_historyLen = GetCommandHistory(m_history);
+    if ( !m_history )
+        return false;
+
+
+    // now find the first blank line above the current position
+    CONSOLE_SCREEN_BUFFER_INFO csbi;

 
 

-    if ( !RegisterClass(&wndclass) )
+    if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) )

     {
     {

-        wxLogLastError(wxT("RegisterClass(frame)"));
+        wxLogLastError(_T("GetConsoleScreenBufferInfo"));
+        return false;

     }
 
     }
 

-    // "no redraw" frame
-    wndclass.lpszClassName = wxCanvasClassNameNR;
-    wndclass.style         = styleNoRedraw;
+    COORD pos;
+    pos.X = 0;
+    pos.Y = csbi.dwCursorPosition.Y + 1;
+
+    // we decide that a line is empty if first 4 characters are spaces
+    DWORD ret;
+    char buf[4];
+    do
+    {
+        pos.Y--;
+        if ( !::ReadConsoleOutputCharacterA(m_hStderr, buf, WXSIZEOF(buf),
+                                            pos, &ret) )
+        {
+            wxLogLastError(_T("ReadConsoleOutputCharacterA"));
+            return false;
+        }
+    } while ( wxStrncmp("    ", buf, WXSIZEOF(buf)) != 0 );
+
+    // calculate line offset and length of data
+    m_dataLine = csbi.dwCursorPosition.Y - pos.Y;
+    m_dataLen = m_dataLine*csbi.dwMaximumWindowSize.X + csbi.dwCursorPosition.X;

 
 

-    if ( !RegisterClass(&wndclass) )
+    if ( m_dataLen > 0 )

     {
     {

-        wxLogLastError(wxT("RegisterClass(no redraw frame)"));
+        m_data.extend(m_dataLen);
+        if ( !::ReadConsoleOutputCharacterA(m_hStderr, m_data.data(), m_dataLen,
+                                            pos, &ret) )
+        {
+            wxLogLastError(_T("ReadConsoleOutputCharacterA"));
+            return false;
+        }

     }
 
     }
 

-    // Register the MDI frame window class.
-    wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
-    wndclass.lpszClassName = wxMDIFrameClassName;
-    wndclass.style         = styleNormal;
+    return true;
+}
+
+int wxConsoleStderr::GetCommandHistory(wxWxCharBuffer& buf) const
+{
+    // these functions are internal and may only be called by cmd.exe
+    static const wxChar *CMD_EXE = _T("cmd.exe");

 
 

-    if ( !RegisterClass(&wndclass) )
+    const int len = m_pfnGetConsoleCommandHistoryLength(CMD_EXE);
+    if ( len )

     {
     {

-        wxLogLastError(wxT("RegisterClass(MDI parent)"));
+        buf.extend(len);
+
+        int len2 = m_pfnGetConsoleCommandHistory(buf.data(), len, CMD_EXE);
+
+#if !wxUSE_UNICODE
+        // there seems to be a bug in the GetConsoleCommandHistoryA(), it
+        // returns the length of Unicode string and not ANSI one
+        len2 /= 2;
+#endif // !wxUSE_UNICODE
+
+        if ( len2 != len )
+        {
+            wxFAIL_MSG( _T("failed getting history?") );
+        }

     }
 
     }
 

-    // "no redraw" MDI frame
-    wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
-    wndclass.style         = styleNoRedraw;
+    return len;
+}
+
+bool wxConsoleStderr::IsHistoryUnchanged() const
+{
+    wxASSERT_MSG( m_ok == 1, _T("shouldn't be called if not initialized") );
+
+    // get (possibly changed) command history
+    wxWxCharBuffer history;
+    const int historyLen = GetCommandHistory(history);

 
 

-    if ( !RegisterClass(&wndclass) )
+    // and compare it with the original one
+    return historyLen == m_historyLen && history &&
+                memcmp(m_history, history, historyLen) == 0;
+}
+
+bool wxConsoleStderr::Write(const wxString& text)
+{
+    wxASSERT_MSG( m_hStderr != INVALID_HANDLE_VALUE,
+                    _T("should only be called if Init() returned true") );
+
+    // get current position
+    CONSOLE_SCREEN_BUFFER_INFO csbi;
+    if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) )

     {
     {

-        wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)"));
+        wxLogLastError(_T("GetConsoleScreenBufferInfo"));
+        return false;

     }
 
     }
 

-    // Register the MDI child frame window class.
-    wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
-    wndclass.lpszClassName = wxMDIChildFrameClassName;
-    wndclass.style         = styleNormal;
+    // and calculate new position (where is empty line)
+    csbi.dwCursorPosition.X = 0;
+    csbi.dwCursorPosition.Y -= m_dataLine;

 
 

-    if ( !RegisterClass(&wndclass) )
+    if ( !::SetConsoleCursorPosition(m_hStderr, csbi.dwCursorPosition) )

     {
     {

-        wxLogLastError(wxT("RegisterClass(MDI child)"));
+        wxLogLastError(_T("SetConsoleCursorPosition"));
+        return false;

     }
 
     }
 

-    // "no redraw" MDI child frame
-    wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
-    wndclass.style         = styleNoRedraw;
+    DWORD ret;
+    if ( !::FillConsoleOutputCharacter(m_hStderr, _T(' '), m_dataLen,
+                                       csbi.dwCursorPosition, &ret) )
+    {
+        wxLogLastError(_T("FillConsoleOutputCharacter"));
+        return false;
+    }

 
 

-    if ( !RegisterClass(&wndclass) )
+    if ( !::WriteConsole(m_hStderr, text.wx_str(), text.length(), &ret, NULL) )

     {
     {

-        wxLogLastError(wxT("RegisterClass(no redraw MDI child)"));
+        wxLogLastError(_T("WriteConsole"));
+        return false;

     }
 
     }
 

-    return TRUE;
+    WriteConsoleA(m_hStderr, m_data, m_dataLen, &ret, 0);
+
+    return true;
+}
+
+wxConsoleStderr s_consoleStderr;
+
+} // anonymous namespace
+
+bool wxGUIAppTraits::CanUseStderr()
+{
+    return s_consoleStderr.IsOkToUse();

 }
 
 }
 

+bool wxGUIAppTraits::WriteToStderr(const wxString& text)
+{
+    return s_consoleStderr.IsOkToUse() && s_consoleStderr.Write(text);
+}
+
+#endif // !__WXWINCE__
+
+// ===========================================================================
+// wxApp implementation
+// ===========================================================================
+
+int wxApp::m_nCmdShow = SW_SHOWNORMAL;
+

 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------

-// UnregisterWindowClasses
+// wxWin macros

 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 

-bool wxApp::UnregisterWindowClasses()
+IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
+
+BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
+    EVT_IDLE(wxApp::OnIdle)
+    EVT_END_SESSION(wxApp::OnEndSession)
+    EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
+END_EVENT_TABLE()
+
+// class to ensure that wxAppBase::CleanUp() is called if our Initialize()
+// fails
+class wxCallBaseCleanup

 {
 {

-    bool retval = TRUE;
+public:
+    wxCallBaseCleanup(wxApp *app) : m_app(app) { }
+    ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); }

 
 

-#ifndef __WXMICROWIN__
-    // MDI frame window class.
-    if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) )
-    {
-        wxLogLastError(wxT("UnregisterClass(MDI parent)"));
+    void Dismiss() { m_app = NULL; }

 
 

-        retval = FALSE;
-    }
+private:
+    wxApp *m_app;
+};

 
 

-    // "no redraw" MDI frame
-    if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) )
-    {
-        wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)"));
+//// Initialize
+bool wxApp::Initialize(int& argc, wxChar **argv)
+{
+    if ( !wxAppBase::Initialize(argc, argv) )
+        return false;

 
 

-        retval = FALSE;
-    }
+    // ensure that base cleanup is done if we return too early
+    wxCallBaseCleanup callBaseCleanup(this);

 
 

-    // MDI child frame window class.
-    if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) )
-    {
-        wxLogLastError(wxT("UnregisterClass(MDI child)"));
+#if !defined(__WXMICROWIN__)
+    InitCommonControls();
+#endif // !defined(__WXMICROWIN__)

 
 

-        retval = FALSE;
-    }
+#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
+    SHInitExtraControls();
+#endif
+
+#ifndef __WXWINCE__
+    // Don't show a message box if a function such as SHGetFileInfo
+    // fails to find a device.
+    SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX);
+#endif
+
+    wxOleInitialize();
+
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+    wxSetKeyboardHook(true);
+#endif
+
+    callBaseCleanup.Dismiss();
+
+    return true;
+}
+
+// ---------------------------------------------------------------------------
+// Win32 window class registration
+// ---------------------------------------------------------------------------

 
 

-    // "no redraw" MDI child frame
-    if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) )
+/* static */
+const wxChar *wxApp::GetRegisteredClassName(const wxChar *name,
+                                            int bgBrushCol,
+                                            int extraStyles)
+{
+    const size_t count = gs_regClassesInfo.size();
+    for ( size_t n = 0; n < count; n++ )

     {
     {

-        wxLogLastError(wxT("UnregisterClass(no redraw MDI child)"));
+        if ( gs_regClassesInfo[n].basename == name )
+            return gs_regClassesInfo[n].regname.c_str();
+    }
+
+    // we need to register this class
+    WNDCLASS wndclass;
+    wxZeroMemory(wndclass);

 
 

-        retval = FALSE;
+    wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
+    wndclass.hInstance     = wxhInstance;
+    wndclass.hCursor       = ::LoadCursor(NULL, IDC_ARROW);
+    wndclass.hbrBackground = (HBRUSH)wxUIntToPtr(bgBrushCol + 1);
+    wndclass.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | extraStyles;
+
+
+    ClassRegInfo regClass;
+    regClass.basename = name;
+
+    // constuct a unique suffix to allow registering the class with the same
+    // base name in a main application using wxWidgets and a DLL using
+    // wxWidgets loaded into its address space: as gs_regClassesInfo variable
+    // is different in them, we're going to obtain a unique prefix by using its
+    // address here
+    regClass.regname = regClass.basename +
+                            wxString::Format(wxT("@%p"), &gs_regClassesInfo);
+    wndclass.lpszClassName = regClass.regname.wx_str();
+    if ( !::RegisterClass(&wndclass) )
+    {
+        wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"),
+                       regClass.regname));
+        return NULL;

     }
 
     }
 

-    // canvas class name
-    if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) )
+    // NB: remember that code elsewhere supposes that no redraw class names
+    //     use the same names as normal classes with "NR" suffix so we must put
+    //     "NR" at the end instead of using more natural basename+"NR"+suffix
+    regClass.regnameNR = regClass.regname + GetNoRedrawClassSuffix();
+    wndclass.style &= ~(CS_HREDRAW | CS_VREDRAW);
+    wndclass.lpszClassName = regClass.regnameNR.wx_str();
+    if ( !::RegisterClass(&wndclass) )

     {
     {

-        wxLogLastError(wxT("UnregisterClass(canvas)"));
+        wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"),
+                       regClass.regname));
+        ::UnregisterClass(regClass.regname.c_str(), wxhInstance);
+        return NULL;
+    }
+
+    gs_regClassesInfo.push_back(regClass);
+
+    // take care to return the pointer which will remain valid after the
+    // function returns (it could be invalidated later if new elements are
+    // added to the vector and it's reallocated but this shouldn't matter as
+    // this pointer should be used right now, not stored)
+    return gs_regClassesInfo.back().regname.wx_str();
+}

 
 

-        retval = FALSE;
+bool wxApp::IsRegisteredClassName(const wxString& name)
+{
+    const size_t count = gs_regClassesInfo.size();
+    for ( size_t n = 0; n < count; n++ )
+    {
+        if ( gs_regClassesInfo[n].regname == name ||
+                gs_regClassesInfo[n].regnameNR == name )
+            return true;

     }
 
     }
 

-    if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
+    return false;
+}
+
+void wxApp::UnregisterWindowClasses()
+{
+    const size_t count = gs_regClassesInfo.size();
+    for ( size_t n = 0; n < count; n++ )

     {
     {

-        wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
+        const ClassRegInfo& regClass = gs_regClassesInfo[n];
+        if ( !::UnregisterClass(regClass.regname.c_str(), wxhInstance) )
+        {
+            wxLogLastError(wxString::Format(wxT("UnregisterClass(%s)"),
+                           regClass.regname));
+        }

 
 

-        retval = FALSE;
+        if ( !::UnregisterClass(regClass.regnameNR.c_str(), wxhInstance) )
+        {
+            wxLogLastError(wxString::Format(wxT("UnregisterClass(%s)"),
+                           regClass.regnameNR));
+        }

     }
     }

-#endif // __WXMICROWIN__

 
 

-    return retval;
+    gs_regClassesInfo.clear();

 }
 
 void wxApp::CleanUp()
 {
 }
 
 void wxApp::CleanUp()
 {

-#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-    wxSetKeyboardHook(FALSE);
-#endif
+    // all objects pending for deletion must be deleted first, otherwise
+    // UnregisterWindowClasses() call wouldn't succeed (because windows
+    // using the classes being unregistered still exist), so call the base
+    // class method first and only then do our clean up
+    wxAppBase::CleanUp();

 
 

-#if wxUSE_PENWINDOWS
-    wxCleanUpPenWin();
+#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+    wxSetKeyboardHook(false);

 #endif
 
 #endif
 

-    if ( wxDisableButtonBrush )
-        ::DeleteObject( wxDisableButtonBrush );
-
-#if wxUSE_OLE
-#ifdef __WXWINCE__
-    ::CoUninitialize();
-#else
-    ::OleUninitialize();
-#endif
-#endif
+    wxOleUninitialize();

 
     // for an EXE the classes are unregistered when it terminates but DLL may
     // be loaded several times (load/unload/load) into the same process in
     // which case the registration will fail after the first time if we don't
     // unregister the classes now
     UnregisterWindowClasses();
 
     // for an EXE the classes are unregistered when it terminates but DLL may
     // be loaded several times (load/unload/load) into the same process in
     // which case the registration will fail after the first time if we don't
     // unregister the classes now
     UnregisterWindowClasses();

-
-#if wxUSE_CTL3D
-    Ctl3dUnregister(wxhInstance);
-#endif
-
-    delete wxWinHandleHash;
-    wxWinHandleHash = NULL;
-
-    wxAppBase::CleanUp();

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -532,41 +778,20 @@ wxApp::wxApp()
 
 wxApp::~wxApp()
 {
 
 wxApp::~wxApp()
 {

-    // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they
-    // don't come from main(), so we have to free them
-
-    while ( argc )
-    {
-        // m_argv elements were allocated by wxStrdup()
-        free(argv[--argc]);
-    }
-
-    // but m_argv itself -- using new[]
-    delete [] argv;

 }
 
 }
 

-bool wxApp::Initialized()
-{
-#ifndef _WINDLL
-    if (GetTopWindow())
-        return TRUE;
-    else
-        return FALSE;
-#else // Assume initialized if DLL (no way of telling)
-    return TRUE;
-#endif
-}
+// ----------------------------------------------------------------------------
+// wxApp idle handling
+// ----------------------------------------------------------------------------

 
 

-void wxApp::OnIdle(wxIdleEvent& event)
+void wxApp::OnIdle(wxIdleEvent& WXUNUSED(event))

 {
 {

-    wxAppBase::OnIdle(event);
-

 #if wxUSE_DC_CACHEING
     // automated DC cache management: clear the cached DCs and bitmap
     // if it's likely that the app has finished with them, that is, we
     // get an idle event and we're not dragging anything.
     if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
 #if wxUSE_DC_CACHEING
     // automated DC cache management: clear the cached DCs and bitmap
     // if it's likely that the app has finished with them, that is, we
     // get an idle event and we're not dragging anything.
     if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))

-        wxDC::ClearCache();
+        wxMSWDCImpl::ClearCache();

 #endif // wxUSE_DC_CACHEING
 }
 
 #endif // wxUSE_DC_CACHEING
 }
 


@@ -576,21 +801,56 @@ void wxApp::WakeUpIdle()
     // start up again.  Doing it this way ensures that the idle handler
     // wakes up in the right thread (see also wxWakeUpMainThread() which does
     // the same for the main app thread only)
     // start up again.  Doing it this way ensures that the idle handler
     // wakes up in the right thread (see also wxWakeUpMainThread() which does
     // the same for the main app thread only)

-    wxWindow *topWindow = wxTheApp->GetTopWindow();
+    wxWindow * const topWindow = wxTheApp->GetTopWindow();

     if ( topWindow )
     {
     if ( topWindow )
     {

-        if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) )
+        HWND hwndTop = GetHwndOf(topWindow);
+
+        // Do not post WM_NULL if there's already a pending WM_NULL to avoid
+        // overflowing the message queue.
+        //
+        // Notice that due to a limitation of PeekMessage() API (which handles
+        // 0,0 range specially), we have to check the range from 0-1 instead.
+        // This still makes it possible to overflow the queue with WM_NULLs by
+        // interspersing the calles to WakeUpIdle() with windows creation but
+        // it should be rather hard to do it accidentally.
+        MSG msg;
+        if ( !::PeekMessage(&msg, hwndTop, 0, 1, PM_NOREMOVE) ||
+              ::PeekMessage(&msg, hwndTop, 1, 1, PM_NOREMOVE) )

         {
         {

-            // should never happen
-            wxLogLastError(wxT("PostMessage(WM_NULL)"));
+            if ( !::PostMessage(hwndTop, WM_NULL, 0, 0) )
+            {
+                // should never happen
+                wxLogLastError(wxT("PostMessage(WM_NULL)"));
+            }

         }
     }
 }
 
         }
     }
 }
 

+// ----------------------------------------------------------------------------
+// other wxApp event hanlders
+// ----------------------------------------------------------------------------
+

 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 {
 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 {

-    if (GetTopWindow())
-        GetTopWindow()->Close(TRUE);
+    // Windows will terminate the process soon after we return from
+    // WM_ENDSESSION handler or when we delete our last window, so make sure we
+    // at least execute our cleanup code before
+
+    // prevent the window from being destroyed when the corresponding wxTLW is
+    // destroyed: this will result in a leak of a HWND, of course, but who
+    // cares when the process is being killed anyhow
+    if ( !wxTopLevelWindows.empty() )
+        wxTopLevelWindows[0]->SetHWND(0);
+
+    const int rc = OnExit();
+
+    wxEntryCleanup();
+
+    // calling exit() instead of ExitProcess() or not doing anything at all and
+    // being killed by Windows has the advantage of executing the dtors of
+    // global objects
+    exit(rc);

 }
 
 // Default behaviour: close the application with prompts. The
 }
 
 // Default behaviour: close the application with prompts. The


@@ -600,17 +860,50 @@ void wxApp::OnQueryEndSession(wxCloseEvent& event)
     if (GetTopWindow())
     {
         if (!GetTopWindow()->Close(!event.CanVeto()))
     if (GetTopWindow())
     {
         if (!GetTopWindow()->Close(!event.CanVeto()))

-            event.Veto(TRUE);
+            event.Veto(true);

     }
 }
 
     }
 }
 

+// ----------------------------------------------------------------------------
+// system DLL versions
+// ----------------------------------------------------------------------------
+
+// these functions have trivial inline implementations for CE
+#ifndef __WXWINCE__
+
+#if wxUSE_DYNLIB_CLASS
+
+namespace
+{
+
+// helper function: retrieve the DLL version by using DllGetVersion(), returns
+// 0 if the DLL doesn't export such function
+int CallDllGetVersion(wxDynamicLibrary& dll)
+{
+    // now check if the function is available during run-time
+    wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dll );
+    if ( !pfnDllGetVersion )
+        return 0;
+
+    DLLVERSIONINFO dvi;
+    dvi.cbSize = sizeof(dvi);
+
+    HRESULT hr = (*pfnDllGetVersion)(&dvi);
+    if ( FAILED(hr) )
+    {
+        wxLogApiError(_T("DllGetVersion"), hr);
+
+        return 0;
+    }
+
+    return 100*dvi.dwMajorVersion + dvi.dwMinorVersion;
+}
+
+} // anonymous namespace
+

 /* static */
 int wxApp::GetComCtl32Version()
 {
 /* static */
 int wxApp::GetComCtl32Version()
 {

-//FIX ME FOR DIGITALMARS!!
-#if defined(__WXMICROWIN__) || defined(__WXWINCE__) || defined(__DIGITALMARS__)
-    return 0;
-#else

     // cache the result
     //
     // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice,
     // cache the result
     //
     // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice,


@@ -619,104 +912,146 @@ int wxApp::GetComCtl32Version()
 
     if ( s_verComCtl32 == -1 )
     {
 
     if ( s_verComCtl32 == -1 )
     {

-        // initally assume no comctl32.dll at all
-        s_verComCtl32 = 0;
-

         // we're prepared to handle the errors
         wxLogNull noLog;
 
         // we're prepared to handle the errors
         wxLogNull noLog;
 

-        // do we have it?
-        wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM);
+        // we don't want to load comctl32.dll, it should be already loaded but,
+        // depending on the OS version and the presence of the manifest, it can
+        // be either v5 or v6 and instead of trying to guess it just get the
+        // handle of the already loaded version
+        wxLoadedDLL dllComCtl32(_T("comctl32.dll"));
+        if ( !dllComCtl32.IsLoaded() )
+        {
+            s_verComCtl32 = 0;
+            return 0;
+        }
+
+        // try DllGetVersion() for recent DLLs
+        s_verComCtl32 = CallDllGetVersion(dllComCtl32);

 
 

-        // if so, then we can check for the version
-        if ( dllComCtl32.IsLoaded() )
+        // if DllGetVersion() is unavailable either during compile or
+        // run-time, try to guess the version otherwise
+        if ( !s_verComCtl32 )

         {
         {

-#ifdef DLLVER_PLATFORM_WINDOWS
-            // try to use DllGetVersion() if available in _headers_
-            wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dllComCtl32 );
-            if ( pfnDllGetVersion )
+            // InitCommonControlsEx is unique to 4.70 and later
+            void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx"));
+            if ( !pfn )

             {
             {

-                DLLVERSIONINFO dvi;
-                dvi.cbSize = sizeof(dvi);
-
-                HRESULT hr = (*pfnDllGetVersion)(&dvi);
-                if ( FAILED(hr) )
-                {
-                    wxLogApiError(_T("DllGetVersion"), hr);
-                }
-                else
-                {
-                    // this is incompatible with _WIN32_IE values, but
-                    // compatible with the other values returned by
-                    // GetComCtl32Version()
-                    s_verComCtl32 = 100*dvi.dwMajorVersion +
-                                        dvi.dwMinorVersion;
-                }
+                // not found, must be 4.00
+                s_verComCtl32 = 400;

             }
             }

-#endif
-
-            // if DllGetVersion() is unavailable either during compile or
-            // run-time, try to guess the version otherwise
-            if ( !s_verComCtl32 )
+            else // 4.70+

             {
             {

-                // InitCommonControlsEx is unique to 4.70 and later
-                void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx"));
+                // many symbols appeared in comctl32 4.71, could use any of
+                // them except may be DllInstall()
+                pfn = dllComCtl32.GetSymbol(_T("InitializeFlatSB"));

                 if ( !pfn )
                 {
                 if ( !pfn )
                 {

-                    // not found, must be 4.00
-                    s_verComCtl32 = 400;
+                    // not found, must be 4.70
+                    s_verComCtl32 = 470;

                 }
                 }

-                else // 4.70+
+                else

                 {
                 {

-                    // many symbols appeared in comctl32 4.71, could use any of
-                    // them except may be DllInstall()
-                    pfn = dllComCtl32.GetSymbol(_T("InitializeFlatSB"));
-                    if ( !pfn )
-                    {
-                        // not found, must be 4.70
-                        s_verComCtl32 = 470;
-                    }
-                    else
-                    {
-                        // found, must be 4.71 or later
-                        s_verComCtl32 = 471;
-                    }
+                    // found, must be 4.71 or later
+                    s_verComCtl32 = 471;

                 }
             }
         }
     }
 
     return s_verComCtl32;
                 }
             }
         }
     }
 
     return s_verComCtl32;

-#endif // Microwin/!Microwin

 }
 
 }
 

-// Yield to incoming messages
+/* static */
+int wxApp::GetShell32Version()
+{
+    static int s_verShell32 = -1;
+    if ( s_verShell32 == -1 )
+    {
+        // we're prepared to handle the errors
+        wxLogNull noLog;
+
+        wxDynamicLibrary dllShell32(_T("shell32.dll"), wxDL_VERBATIM);
+        if ( dllShell32.IsLoaded() )
+        {
+            s_verShell32 = CallDllGetVersion(dllShell32);

 
 

-bool wxApp::Yield(bool onlyIfNeeded)
+            if ( !s_verShell32 )
+            {
+                // there doesn't seem to be any way to distinguish between 4.00
+                // and 4.70 (starting from 4.71 we have DllGetVersion()) so
+                // just assume it is 4.0
+                s_verShell32 = 400;
+            }
+        }
+        else // failed load the DLL?
+        {
+            s_verShell32 = 0;
+        }
+    }
+
+    return s_verShell32;
+}
+
+#else // !wxUSE_DYNLIB_CLASS
+
+/* static */
+int wxApp::GetComCtl32Version()

 {
 {

-    // MT-FIXME
-    static bool s_inYield = FALSE;
+    return 0;
+}

 
 

-#if wxUSE_LOG
-    // disable log flushing from here because a call to wxYield() shouldn't
-    // normally result in message boxes popping up &c
-    wxLog::Suspend();
-#endif // wxUSE_LOG
+/* static */
+int wxApp::GetShell32Version()
+{
+    return 0;
+}
+
+#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS
+
+#endif // !__WXWINCE__
+
+// ----------------------------------------------------------------------------
+// Yield to incoming messages
+// ----------------------------------------------------------------------------
+
+WX_DECLARE_OBJARRAY(MSG, wxMSGArray);
+
+#include <wx/arrimpl.cpp>
+WX_DEFINE_OBJARRAY(wxMSGArray);

 
 

-    if ( s_inYield )
+static wxMSGArray g_arrMSG;
+
+bool wxApp::DoYield(bool onlyIfNeeded, long eventsToProcess)
+{
+    if ( m_isInsideYield )

     {
         if ( !onlyIfNeeded )
         {
             wxFAIL_MSG( wxT("wxYield called recursively" ) );
         }
 
     {
         if ( !onlyIfNeeded )
         {
             wxFAIL_MSG( wxT("wxYield called recursively" ) );
         }
 

-        return FALSE;
+        return false;

     }
 
     }
 

-    s_inYield = TRUE;
+    // set the flag and don't forget to reset it before returning
+    m_isInsideYield = true;
+    m_eventsToProcessInsideYield = eventsToProcess;
+
+    wxON_BLOCK_EXIT_SET(m_isInsideYield, false);
+
+#if wxUSE_LOG
+    // disable log flushing from here because a call to wxYield() shouldn't
+    // normally result in message boxes popping up &c
+    wxLog::Suspend();
+
+    // ensure the logs will be flashed again when we exit
+    wxON_BLOCK_EXIT0(wxLog::Resume);
+#endif // wxUSE_LOG

 
     // we don't want to process WM_QUIT from here - it should be processed in
     // the main event loop in order to stop it
 
     // we don't want to process WM_QUIT from here - it should be processed in
     // the main event loop in order to stop it

+    wxEventLoopGuarantor dummyLoopIfNeeded;

     MSG msg;
     while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) &&
             msg.message != WM_QUIT )
     MSG msg;
     while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) &&
             msg.message != WM_QUIT )


@@ -725,20 +1060,165 @@ bool wxApp::Yield(bool onlyIfNeeded)
         wxMutexGuiLeaveOrEnter();
 #endif // wxUSE_THREADS
 
         wxMutexGuiLeaveOrEnter();
 #endif // wxUSE_THREADS
 

-        if ( !wxTheApp->Dispatch() )
+        if (msg.message == WM_PAINT)
+        {
+            // WM_PAINT messages are the last ones of the queue...

             break;
             break;

+        }
+
+        // choose a wxEventCategory for this Windows message
+        wxEventCategory cat;
+        switch (msg.message)
+        {
+            case WM_NCMOUSEMOVE:
+            case WM_NCLBUTTONDOWN:
+            case WM_NCLBUTTONUP:
+            case WM_NCLBUTTONDBLCLK:
+            case WM_NCRBUTTONDOWN:
+            case WM_NCRBUTTONUP:
+            case WM_NCRBUTTONDBLCLK:
+            case WM_NCMBUTTONDOWN:
+            case WM_NCMBUTTONUP:
+            case WM_NCMBUTTONDBLCLK:
+
+            case WM_KEYDOWN:
+            case WM_KEYUP:
+            case WM_CHAR:
+            case WM_DEADCHAR:
+            case WM_SYSKEYDOWN:
+            case WM_SYSKEYUP:
+            case WM_SYSCHAR:
+            case WM_SYSDEADCHAR:
+#ifdef WM_UNICHAR
+            case WM_UNICHAR:
+#endif
+            case WM_HOTKEY:
+            case WM_IME_STARTCOMPOSITION:
+            case WM_IME_ENDCOMPOSITION:
+            case WM_IME_COMPOSITION:
+            case WM_COMMAND:
+            case WM_SYSCOMMAND:
+
+            case WM_IME_SETCONTEXT:
+            case WM_IME_NOTIFY:
+            case WM_IME_CONTROL:
+            case WM_IME_COMPOSITIONFULL:
+            case WM_IME_SELECT:
+            case WM_IME_CHAR:
+            case WM_IME_KEYDOWN:
+            case WM_IME_KEYUP:
+
+            case WM_MOUSEHOVER:
+#ifdef WM_NCMOUSELEAVE
+            case WM_NCMOUSELEAVE:
+#endif
+            case WM_MOUSELEAVE:
+
+            case WM_CUT:
+            case WM_COPY:
+            case WM_PASTE:
+            case WM_CLEAR:
+            case WM_UNDO:
+
+            case WM_MOUSEMOVE:
+            case WM_LBUTTONDOWN:
+            case WM_LBUTTONUP:
+            case WM_LBUTTONDBLCLK:
+            case WM_RBUTTONDOWN:
+            case WM_RBUTTONUP:
+            case WM_RBUTTONDBLCLK:
+            case WM_MBUTTONDOWN:
+            case WM_MBUTTONUP:
+            case WM_MBUTTONDBLCLK:
+            case WM_MOUSEWHEEL:
+                cat = wxEVT_CATEGORY_USER_INPUT;
+                break;
+
+            case WM_TIMER:
+                cat = wxEVT_CATEGORY_TIMER;
+                break;
+
+            default:
+                if (msg.message < WM_USER)
+                {
+                    // 0;WM_USER-1 is the range of message IDs reserved for use
+                    // by the system.
+
+                    // there are too many of these types of messages to handle
+                    // them in this switch
+                    cat = wxEVT_CATEGORY_UI;
+                }
+                else
+                    cat = wxEVT_CATEGORY_UNKNOWN;
+        }
+
+        // should we process this event now?
+        if (cat & eventsToProcess)
+        {
+            if ( !wxTheApp->Dispatch() )
+                break;
+        }
+        else
+        {
+            // remove the message and store it
+            ::GetMessage(&msg, NULL, 0, 0);
+            g_arrMSG.Add(msg);
+        }

     }
 
     // if there are pending events, we must process them.
     ProcessPendingEvents();
 
     }
 
     // if there are pending events, we must process them.
     ProcessPendingEvents();
 

-#if wxUSE_LOG
-    // let the logs be flashed again
-    wxLog::Resume();
-#endif // wxUSE_LOG
+    // put back unprocessed events in the queue
+    DWORD id = GetCurrentThreadId();
+    for (size_t i=0; i<g_arrMSG.GetCount(); i++)
+    {
+        PostThreadMessage(id, g_arrMSG[i].message,
+                          g_arrMSG[i].wParam, g_arrMSG[i].lParam);
+    }

 
 

-    s_inYield = FALSE;
+    g_arrMSG.Clear();

 
 

-    return TRUE;
+    return true;
+}
+
+#if wxUSE_EXCEPTIONS
+
+// ----------------------------------------------------------------------------
+// exception handling
+// ----------------------------------------------------------------------------
+
+bool wxApp::OnExceptionInMainLoop()
+{
+    // ask the user about what to do: use the Win32 API function here as it
+    // could be dangerous to use any wxWidgets code in this state
+    switch (
+            ::MessageBox
+              (
+                NULL,
+                _T("An unhandled exception occurred. Press \"Abort\" to \
+terminate the program,\r\n\
+\"Retry\" to exit the program normally and \"Ignore\" to try to continue."),
+                _T("Unhandled exception"),
+                MB_ABORTRETRYIGNORE |
+                MB_ICONERROR|
+                MB_TASKMODAL
+              )
+           )
+    {
+        case IDABORT:
+            throw;
+
+        default:
+            wxFAIL_MSG( _T("unexpected MessageBox() return code") );
+            // fall through
+
+        case IDRETRY:
+            return false;
+
+        case IDIGNORE:
+            return true;
+    }

 }
 
 }
 

+#endif // wxUSE_EXCEPTIONS