X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c4e7c2aa5822f9a6e97d8d7848b95ea2eadcd98b..9d5507f7a2701395e1d5c121bd877bb9066ee6ea:/src/msw/app.cpp?ds=sidebyside diff --git a/src/msw/app.cpp b/src/msw/app.cpp index 47b65da5b4..ef5379e82b 100644 --- a/src/msw/app.cpp +++ b/src/msw/app.cpp @@ -1,1013 +1,837 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: app.cpp +// Name: src/msw/app.cpp // Purpose: wxApp // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) Julian Smart +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "app.h" -#endif +// =========================================================================== +// declarations +// =========================================================================== + +// --------------------------------------------------------------------------- +// headers +// --------------------------------------------------------------------------- // For compilers that support precompilation, includes "wx.h". -#define IN_WX_MAIN_CPP #include "wx/wxprec.h" #if defined(__BORLANDC__) -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include "wx/frame.h" -#include "wx/app.h" -#include "wx/utils.h" -#include "wx/gdicmn.h" -#include "wx/pen.h" -#include "wx/brush.h" -#include "wx/cursor.h" -#include "wx/icon.h" -#include "wx/palette.h" -#include "wx/dc.h" -#include "wx/dialog.h" -#include "wx/msgdlg.h" + #include "wx/msw/wrapcctl.h" + #include "wx/dynarray.h" + #include "wx/frame.h" + #include "wx/app.h" + #include "wx/utils.h" + #include "wx/gdicmn.h" + #include "wx/pen.h" + #include "wx/brush.h" + #include "wx/cursor.h" + #include "wx/icon.h" + #include "wx/palette.h" + #include "wx/dc.h" + #include "wx/dialog.h" + #include "wx/msgdlg.h" + #include "wx/intl.h" + #include "wx/crt.h" + #include "wx/log.h" + #include "wx/module.h" #endif +#include "wx/apptrait.h" +#include "wx/filename.h" +#include "wx/dynlib.h" +#include "wx/evtloop.h" +#include "wx/thread.h" + #include "wx/msw/private.h" -#include "wx/postscrp.h" -#include "wx/log.h" -#include "wx/module.h" +#include "wx/msw/ole/oleutils.h" +#include "wx/msw/private/timer.h" -#if USE_WX_RESOURCES -#include "wx/resource.h" -#endif +#if wxUSE_TOOLTIPS + #include "wx/tooltip.h" +#endif // wxUSE_TOOLTIPS +// 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__) + #undef wxUSE_OLE -#include + #define wxUSE_OLE 0 +#endif // broken compilers -#if defined(__WIN95__) && !defined(__GNUWIN32__) -#include +#if defined(__POCKETPC__) || defined(__SMARTPHONE__) + #include + #include #endif -extern char *wxBuffer; -extern char *wxOsVersion; -extern wxList *wxWinHandleList; -extern wxList wxPendingDelete; -extern void wxSetKeyboardHook(bool doIt); -extern wxCursor *g_globalCursor; - -HINSTANCE wxhInstance = 0; -static MSG s_currentMsg; -wxApp *wxTheApp = NULL; +#if wxUSE_OLE + #include +#endif -char wxFrameClassName[] = "wxFrameClass"; -char wxMDIFrameClassName[] = "wxMDIFrameClass"; -char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass"; -char wxPanelClassName[] = "wxPanelClass"; -char wxCanvasClassName[] = "wxCanvasClass"; +#include +#include + +#include "wx/msw/missing.h" + +// instead of including 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_* + }; -HICON wxSTD_FRAME_ICON = NULL; -HICON wxSTD_MDICHILDFRAME_ICON = NULL; -HICON wxSTD_MDIPARENTFRAME_ICON = NULL; + typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *); +#endif // defined(DLLVERSIONINFO) -HICON wxDEFAULT_FRAME_ICON = NULL; -HICON wxDEFAULT_MDICHILDFRAME_ICON = NULL; -HICON wxDEFAULT_MDIPARENTFRAME_ICON = NULL; -HBRUSH wxDisableButtonBrush = 0; +// --------------------------------------------------------------------------- +// global variables +// --------------------------------------------------------------------------- -LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) +extern void wxSetKeyboardHook(bool doIt); +#endif -#if !USE_SHARED_LIBRARY -IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) -BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) -END_EVENT_TABLE() +// NB: all "NoRedraw" classes must have the same names as the "normal" classes +// with NR suffix - wxWindow::MSWCreate() supposes this +#ifdef __WXWINCE__ +WXDLLIMPEXP_CORE wxChar *wxCanvasClassName; +WXDLLIMPEXP_CORE wxChar *wxCanvasClassNameNR; +#else +WXDLLIMPEXP_CORE const wxChar *wxCanvasClassName = wxT("wxWindowClass"); +WXDLLIMPEXP_CORE const wxChar *wxCanvasClassNameNR = wxT("wxWindowClassNR"); #endif +WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassName = wxT("wxMDIFrameClass"); +WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR"); +WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass"); +WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR"); -long wxApp::sm_lastMessageTime = 0; +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- -#ifdef __WIN95__ -static HINSTANCE gs_hRichEdit = NULL; -#endif +LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); -bool wxApp::Initialize(WXHINSTANCE instance) +// =========================================================================== +// wxGUIAppTraits implementation +// =========================================================================== + +// private class which we use to pass parameters from BeforeChildWaitLoop() to +// AfterChildWaitLoop() +struct ChildWaitLoopData { - HINSTANCE hInstance = (HINSTANCE) instance; + ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_) + { + wd = wd_; + winActive = winActive_; + } - CommonInit(); + wxWindowDisabler *wd; + wxWindow *winActive; +}; -#if defined(__WIN95__) - InitCommonControls(); - gs_hRichEdit = LoadLibrary("RICHED32.DLL"); +void *wxGUIAppTraits::BeforeChildWaitLoop() +{ + /* + We use a dirty hack here to disable all application windows (which we + must do because otherwise the calls to wxYield() could lead to some very + unexpected reentrancies in the users code) but to avoid losing + focus/activation entirely when the child process terminates which would + happen if we simply disabled everything using wxWindowDisabler. Indeed, + remember that Windows will never activate a disabled window and when the + last childs window is closed and Windows looks for a window to activate + all our windows are still disabled. There is no way to enable them in + time because we don't know when the childs windows are going to be + closed, so the solution we use here is to keep one special tiny frame + enabled all the time. Then when the child terminates it will get + activated and when we close it below -- after reenabling all the other + windows! -- the previously active window becomes activated again and + everything is ok. + */ + wxBeginBusyCursor(); + + // first disable all existing windows + wxWindowDisabler *wd = new wxWindowDisabler; + + // then create an "invisible" frame: it has minimal size, is positioned + // (hopefully) outside the screen and doesn't appear on the taskbar + wxWindow *winActive = new wxFrame + ( + wxTheApp->GetTopWindow(), + wxID_ANY, + wxEmptyString, + wxPoint(32600, 32600), + wxSize(1, 1), + wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR + ); + winActive->Show(); + + return new ChildWaitLoopData(wd, winActive); +} - if (gs_hRichEdit == NULL) - { - wxMessageBox("Could not initialise Rich Edit DLL"); - } -#endif +void wxGUIAppTraits::AlwaysYield() +{ + wxYield(); +} -#if defined(WX_DRAG_DROP) - // we need to initialize OLE library - if ( FAILED(::OleInitialize(NULL)) ) - wxFatalError(_("Cannot initialize OLE")); -#endif +void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig) +{ + wxEndBusyCursor(); -#if CTL3D - if (!Ctl3dRegister(hInstance)) - wxFatalError("Cannot register CTL3D"); + ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig; - Ctl3dAutoSubclass(hInstance); -#endif + delete data->wd; - wxSTD_FRAME_ICON = LoadIcon(hInstance, "wxSTD_FRAME"); - wxSTD_MDIPARENTFRAME_ICON = LoadIcon(hInstance, "wxSTD_MDIPARENTFRAME"); - wxSTD_MDICHILDFRAME_ICON = LoadIcon(hInstance, "wxSTD_MDICHILDFRAME"); + // finally delete the dummy frame and, as wd has been already destroyed and + // the other windows reenabled, the activation is going to return to the + // window which had had it before + data->winActive->Destroy(); - wxDEFAULT_FRAME_ICON = LoadIcon(hInstance, "wxDEFAULT_FRAME"); - wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(hInstance, "wxDEFAULT_MDIPARENTFRAME"); - wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(hInstance, "wxDEFAULT_MDICHILDFRAME"); + // also delete the temporary data object itself + delete data; +} - RegisterWindowClasses(); +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 + wxEventLoopBase * const evtLoop = wxEventLoop::GetActive(); + if ( !evtLoop || !evtLoop->Pending() ) + { + // no events means no quit event + return true; + } - // Create the brush for disabling bitmap buttons + return evtLoop->Dispatch(); +} - LOGBRUSH lb ; - lb.lbStyle = BS_PATTERN; - lb.lbHatch = (int)LoadBitmap( hInstance, "wxDISABLE_BUTTON_BITMAP" ) ; - wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ; - ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ; +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 + ); +} -#if USE_PENWINDOWS - wxRegisterPenWin(); -#endif +wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const +{ + OSVERSIONINFO info; + wxZeroMemory(info); - wxWinHandleList = new wxList(wxKEY_INTEGER); + // 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; + } - // This is to foil optimizations in Visual C++ that - // throw out dummy.obj. -#if (_MSC_VER >= 800) && !defined(WXMAKINGDLL) - extern char wxDummyChar; - if (wxDummyChar) wxDummyChar++; +#if defined(__WXHANDHELD__) || defined(__WXWINCE__) + return wxPORT_WINCE; +#else + return wxPORT_MSW; #endif - wxSetKeyboardHook(TRUE); - - wxModule::RegisterModules(); - if (!wxModule::InitializeModules()) - return FALSE; - return TRUE; } -bool wxApp::RegisterWindowClasses() +#if wxUSE_TIMER + +wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) { -/////////////////////////////////////////////////////////////////////// -// Register the frame window class. - WNDCLASS wndclass; // Structure used to register Windows class. - - wndclass.style = CS_HREDRAW | CS_VREDRAW; - wndclass.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass.cbClsExtra = 0; - wndclass.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass.hInstance = wxhInstance; - wndclass.hIcon = NULL; // wxSTD_FRAME_ICON; - wndclass.hCursor = LoadCursor( NULL, IDC_ARROW ); - wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ; -// wndclass.hbrBackground = GetStockObject( WHITE_BRUSH ); - wndclass.lpszMenuName = NULL; -#ifdef _MULTIPLE_INSTANCES - sprintf( wxFrameClassName,"wxFrameClass%d", hInstance ); -#endif - wndclass.lpszClassName = wxFrameClassName; - - if (!RegisterClass( &wndclass )) - { - // wxFatalError("Can't register Frame Window class"); - } - -/////////////////////////////////////////////////////////////////////// -// Register the MDI frame window class. - WNDCLASS wndclass1; // Structure used to register Windows class. - - wndclass1.style = CS_HREDRAW | CS_VREDRAW; - wndclass1.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass1.cbClsExtra = 0; - wndclass1.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass1.hInstance = wxhInstance; - wndclass1.hIcon = NULL; // wxSTD_MDIPARENTFRAME_ICON; - wndclass1.hCursor = LoadCursor( NULL, IDC_ARROW ); -// wndclass1.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ; - wndclass1.hbrBackground = NULL; - wndclass1.lpszMenuName = NULL; - - wndclass1.lpszClassName = wxMDIFrameClassName; - if (!RegisterClass( &wndclass1 )) - { -// wxFatalError("Can't register MDI Frame window class"); -// return FALSE; - } - -/////////////////////////////////////////////////////////////////////// -// Register the MDI child frame window class. - WNDCLASS wndclass4; // Structure used to register Windows class. - - wndclass4.style = CS_HREDRAW | CS_VREDRAW; - wndclass4.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass4.cbClsExtra = 0; - wndclass4.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass4.hInstance = wxhInstance; - wndclass4.hIcon = NULL; // wxSTD_MDICHILDFRAME_ICON; - wndclass4.hCursor = LoadCursor( NULL, IDC_ARROW ); - // TODO: perhaps this should be NULL so that Windows doesn't - // paint the background itself (would OnEraseBackground duplicate - // this?) - wndclass4.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ; -// wndclass4.hbrBackground = NULL; - wndclass4.lpszMenuName = NULL; - wndclass4.lpszClassName = wxMDIChildFrameClassName; - - if (!RegisterClass( &wndclass4 )) - { -// wxFatalError("Can't register MDI child frame window class"); -// return FALSE; - } - -/////////////////////////////////////////////////////////////////////// -// Register the panel window class. - WNDCLASS wndclass2; // Structure used to register Windows class. - memset(&wndclass2, 0, sizeof(WNDCLASS)); // start with NULL defaults - // Use CS_OWNDC to avoid messing about restoring the context - // for every graphic operation. - wndclass2.style = CS_HREDRAW | CS_VREDRAW; - wndclass2.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass2.cbClsExtra = 0; - wndclass2.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass2.hInstance = wxhInstance; - wndclass2.hIcon = NULL; - wndclass2.hCursor = NULL; -// wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ; - wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH ); - wndclass2.lpszMenuName = NULL; - wndclass2.lpszClassName = wxPanelClassName; - if (!RegisterClass( &wndclass2 )) - { -// wxFatalError("Can't register Panel Window class"); -// return FALSE; - } - -/////////////////////////////////////////////////////////////////////// -// Register the canvas and textsubwindow class name - WNDCLASS wndclass3; // Structure used to register Windows class. - memset(&wndclass3, 0, sizeof(WNDCLASS)); // start with NULL defaults - // Use CS_OWNDC to avoid messing about restoring the context - // for every graphic operation. -// wndclass3.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ; - // wxWin 2.0 - wndclass3.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ; - wndclass3.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass3.cbClsExtra = 0; - wndclass3.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass3.hInstance = wxhInstance; - wndclass3.hIcon = NULL; - wndclass3.hCursor = NULL; -// wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ; - wndclass3.hbrBackground = NULL; - wndclass3.lpszMenuName = NULL; - wndclass3.lpszClassName = wxCanvasClassName; - if (!RegisterClass( &wndclass3)) - { -// wxFatalError("Can't register Canvas class"); -// return FALSE; - } - - return TRUE; + return new wxMSWTimerImpl(timer); } -// Cleans up any wxWindows internal structures left lying around -void wxApp::CleanUp() +#endif // wxUSE_TIMER + +wxEventLoopBase* wxGUIAppTraits::CreateEventLoop() { - wxModule::CleanUpModules(); + return new wxEventLoop; +} - CommonCleanUp(); +// =========================================================================== +// wxApp implementation +// =========================================================================== - wxSetKeyboardHook(FALSE); +int wxApp::m_nCmdShow = SW_SHOWNORMAL; -#ifdef __WIN95__ - if (gs_hRichEdit != NULL) - FreeLibrary(gs_hRichEdit); -#endif +// --------------------------------------------------------------------------- +// wxWin macros +// --------------------------------------------------------------------------- -#if USE_PENWINDOWS - wxCleanUpPenWin(); -#endif +IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) - if (wxSTD_FRAME_ICON) - DestroyIcon(wxSTD_FRAME_ICON); - if (wxSTD_MDICHILDFRAME_ICON) - DestroyIcon(wxSTD_MDICHILDFRAME_ICON); - if (wxSTD_MDIPARENTFRAME_ICON) - DestroyIcon(wxSTD_MDIPARENTFRAME_ICON); - - if (wxDEFAULT_FRAME_ICON) - DestroyIcon(wxDEFAULT_FRAME_ICON); - if (wxDEFAULT_MDICHILDFRAME_ICON) - DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON); - if (wxDEFAULT_MDIPARENTFRAME_ICON) - DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON); - - if ( wxDisableButtonBrush ) - ::DeleteObject( wxDisableButtonBrush ) ; - -#if defined(WX_DRAG_DROP) - ::OleUninitialize(); -#endif +BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) + EVT_IDLE(wxApp::OnIdle) + EVT_END_SESSION(wxApp::OnEndSession) + EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) +END_EVENT_TABLE() -#if CTL3D - Ctl3dUnregister(wxhInstance); -#endif +// class to ensure that wxAppBase::CleanUp() is called if our Initialize() +// fails +class wxCallBaseCleanup +{ +public: + wxCallBaseCleanup(wxApp *app) : m_app(app) { } + ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); } - if (wxWinHandleList) - delete wxWinHandleList ; - - // do it as the very last thing because everything else can log messages - delete wxLog::SetActiveTarget(NULL); -} + void Dismiss() { m_app = NULL; } + +private: + wxApp *m_app; +}; -void wxApp::CommonInit() +//// Initialize +bool wxApp::Initialize(int& argc, wxChar **argv) { -#ifdef __WXMSW__ - wxBuffer = new char[1500]; -#else - wxBuffer = new char[BUFSIZ + 512]; + if ( !wxAppBase::Initialize(argc, argv) ) + return false; + + // ensure that base cleanup is done if we return too early + wxCallBaseCleanup callBaseCleanup(this); + +#ifdef __WXWINCE__ + wxString tmp = GetAppName(); + tmp += wxT("ClassName"); + wxCanvasClassName = wxStrdup( tmp.wc_str() ); + tmp += wxT("NR"); + wxCanvasClassNameNR = wxStrdup( tmp.wc_str() ); + HWND hWnd = FindWindow( wxCanvasClassNameNR, NULL ); + if (hWnd) + { + SetForegroundWindow( (HWND)(((DWORD)hWnd)|0x01) ); + return false; + } #endif - wxClassInfo::InitializeClasses(); +#if !defined(__WXMICROWIN__) + InitCommonControls(); +#endif // !defined(__WXMICROWIN__) -#if USE_RESOURCES - wxGetResource("wxWindows", "OsVersion", &wxOsVersion); +#if defined(__SMARTPHONE__) || defined(__POCKETPC__) + SHInitExtraControls(); #endif - wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); - wxTheColourDatabase->Initialize(); - wxInitializeStockObjects(); - -#if USE_WX_RESOURCES - wxInitializeResourceSystem(); +#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 - // For PostScript printing -#if USE_POSTSCRIPT - wxInitializePrintSetupData(); - wxThePrintPaperDatabase = new wxPrintPaperDatabase; - wxThePrintPaperDatabase->CreateDatabase(); + wxOleInitialize(); + + RegisterWindowClasses(); + + wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100); + +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + wxSetKeyboardHook(true); #endif - wxBitmap::InitStandardHandlers(); + callBaseCleanup.Dismiss(); - g_globalCursor = new wxCursor; + return true; } -void wxApp::CommonCleanUp() +// --------------------------------------------------------------------------- +// RegisterWindowClasses +// --------------------------------------------------------------------------- + +// 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() { -#if USE_WX_RESOURCES - wxCleanUpResourceSystem(); + WNDCLASS wndclass; + wxZeroMemory(wndclass); -// wxDefaultResourceTable->ClearTable(); -#endif - // Indicate that the cursor can be freed, - // so that cursor won't be deleted by deleting - // the bitmap list before g_globalCursor goes out - // of scope (double deletion of the cursor). - wxSetCursor(wxNullCursor); - delete g_globalCursor; + // 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; - wxDeleteStockObjects() ; + // the fields which are common to all classes + wndclass.lpfnWndProc = (WNDPROC)wxWndProc; + wndclass.hInstance = wxhInstance; + wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW); - // Destroy all GDI lists, etc. - delete wxTheBrushList; - wxTheBrushList = NULL; + // register the class for all normal windows + wndclass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); + wndclass.lpszClassName = wxCanvasClassName; + wndclass.style = styleNormal; - delete wxThePenList; - wxThePenList = NULL; + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(frame)")); + } - delete wxTheFontList; - wxTheFontList = NULL; + // "no redraw" frame + wndclass.lpszClassName = wxCanvasClassNameNR; + wndclass.style = styleNoRedraw; - delete wxTheBitmapList; - wxTheBitmapList = NULL; + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(no redraw frame)")); + } - delete wxTheColourDatabase; - wxTheColourDatabase = NULL; + // Register the MDI frame window class. + wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves + wndclass.lpszClassName = wxMDIFrameClassName; + wndclass.style = styleNormal; -#if USE_POSTSCRIPT - wxInitializePrintSetupData(FALSE); - delete wxThePrintPaperDatabase; - wxThePrintPaperDatabase = NULL; -#endif + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(MDI parent)")); + } - wxBitmap::CleanUpHandlers(); + // "no redraw" MDI frame + wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw; + wndclass.style = styleNoRedraw; - delete[] wxBuffer; - wxBuffer = NULL; -} + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)")); + } -#if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL)) + // Register the MDI child frame window class. + wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); + wndclass.lpszClassName = wxMDIChildFrameClassName; + wndclass.style = styleNormal; -// Main wxWindows entry point + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(MDI child)")); + } -int wxEntry(WXHINSTANCE hInstance, WXHINSTANCE WXUNUSED(hPrevInstance), char *m_lpCmdLine, - int nCmdShow, bool enterLoop) -{ - wxhInstance = (HINSTANCE) hInstance; + // "no redraw" MDI child frame + wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw; + wndclass.style = styleNoRedraw; -#if (WXDEBUG && USE_MEMORY_TRACING) || USE_DEBUG_CONTEXT + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(no redraw MDI child)")); + } -#if !defined(_WINDLL) - streambuf* sBuf = new wxDebugStreamBuf; -#else - streambuf* sBuf = NULL; -#endif - ostream* oStr = new ostream(sBuf) ; - wxDebugContext::SetStream(oStr, sBuf); + return true; +} -#endif +// --------------------------------------------------------------------------- +// UnregisterWindowClasses +// --------------------------------------------------------------------------- - if (!wxApp::Initialize((WXHINSTANCE) wxhInstance)) - return 0; +bool wxApp::UnregisterWindowClasses() +{ + bool retval = true; - // The app may have declared a global application object, but we recommend - // the IMPLEMENT_APP macro is used instead, which sets an initializer function - // for delayed, dynamic app object construction. - if (!wxTheApp) - { - if (!wxApp::GetInitializerFunction()) - { - MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK); - return 0; - } - - wxTheApp = (* wxApp::GetInitializerFunction()) (); - } - - if (!wxTheApp) { - MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK); - return 0; - } - - // Split command line into tokens, as in usual main(argc, argv) - char **command = new char*[50]; - - int count = 0; - char *buf = new char[strlen(m_lpCmdLine) + 1]; - - // Hangs around until end of app. in case - // user carries pointers to the tokens - - /* Model independent strcpy */ - int i; - for (i = 0; (buf[i] = m_lpCmdLine[i]) != 0; i++) - { - /* loop */; - } - - // Get application name - char name[200]; - ::GetModuleFileName(wxhInstance, name, 199); - - // Is it only 16-bit Borland that already copies the program name - // to the first argv index? -#if !defined(__GNUWIN32__) -// #if ! (defined(__BORLANDC__) && !defined(__WIN32__)) - command[count++] = copystring(name); -// #endif -#endif +#ifndef __WXMICROWIN__ + // MDI frame window class. + if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(MDI parent)")); - strcpy(name, wxFileNameFromPath(name)); - wxStripExtension(name); - wxTheApp->SetAppName(name); - - /* Break up string */ - // Treat strings enclosed in double-quotes as single arguments - char* str = buf; - while (*str) - { - while (*str && *str <= ' ') str++; // skip whitespace - if (*str == '"') - { - str++; - command[count++] = str; - while (*str && *str != '"') str++; - } - else if (*str) - { - command[count++] = str; - while (*str && *str > ' ') str++; - } - if (*str) *str++ = '\0'; - } - command[count] = NULL; /* argv[] is NULL terminated list! */ - - wxTheApp->argc = count; - wxTheApp->argv = command; - wxTheApp->m_nCmdShow = nCmdShow; - - // GUI-specific initialisation. In fact on Windows we don't have any, - // but this call is provided for compatibility across platforms. - wxTheApp->OnInitGui() ; - - if (!wxTheApp->OnInit()) - { - wxTheApp->DeletePendingObjects(); - wxTheApp->OnExit(); - wxApp::CleanUp(); - - delete wxTheApp; - wxTheApp = NULL; - - delete [] buf ; - - // TODO: This should really be cleaned up in ~wxApp - delete [] command[0] ; - delete [] command ; - return 0; - } - - if (!enterLoop) - return 0; - - int retValue = 1; - -/* New behaviour - leave it to the app to show the top window - if (wxTheApp->GetTopWindow()) { - // show the toplevel frame, only if we are not iconized (from MS-Windows) - if(wxTheApp->GetShowFrameOnInit() && (nCmdShow!=SW_HIDE)) wxTheApp->GetTopWindow()->Show(TRUE); - } -*/ - - retValue = wxTheApp->OnRun(); - - if (wxTheApp->GetTopWindow()) - { - // Forcibly delete the window. - if (wxTheApp->GetTopWindow()->IsKindOf(CLASSINFO(wxFrame)) || - wxTheApp->GetTopWindow()->IsKindOf(CLASSINFO(wxDialog))) - { - wxTheApp->GetTopWindow()->Close(TRUE); - wxTheApp->DeletePendingObjects(); - } - else - { - delete wxTheApp->GetTopWindow(); - wxTheApp->SetTopWindow(NULL); - } - } - - wxTheApp->OnExit(); - wxApp::CleanUp(); - - delete wxTheApp; - wxTheApp = NULL; - - delete [] buf ; - delete [] command[0] ; - delete [] command ; - -#if (WXDEBUG && USE_MEMORY_TRACING) || USE_DEBUG_CONTEXT - // At this point we want to check if there are any memory - // blocks that aren't part of the wxDebugContext itself, - // as a special case. Then when dumping we need to ignore - // wxDebugContext, too. - if (wxDebugContext::CountObjectsLeft() > 0) - { - wxTrace("There were memory leaks.\n"); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); - } - wxDebugContext::SetStream(NULL, NULL); -#endif + retval = false; + } - return retValue; -} + // "no redraw" MDI frame + if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)")); -#else /* _WINDLL */ + retval = false; + } -int wxEntry(WXHINSTANCE hInstance) -{ - wxhInstance = (HINSTANCE) hInstance; - wxApp::Initialize((WXHINSTANCE) wxhInstance); - - // The app may have declared a global application object, but we recommend - // the IMPLEMENT_APP macro is used instead, which sets an initializer function - // for delayed, dynamic app object construction. - - if (!wxTheApp) - { - if (!wxApp::GetInitializerFunction()) - { - MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK); - return 0; - } - - wxTheApp = (* wxApp::GetInitializerFunction()) (); - } - - if (!wxTheApp) { - MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK); - return 0; - } + // MDI child frame window class. + if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(MDI child)")); - wxTheApp->argc = 0; - wxTheApp->argv = NULL; + retval = false; + } - wxTheApp->OnInitGui(); + // "no redraw" MDI child frame + if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw MDI child)")); - wxTheApp->OnInit(); + retval = false; + } - if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) { - wxTheApp->GetTopWindow()->Show(TRUE); - } + // canvas class name + if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(canvas)")); - return 1; -} -#endif // _WINDLL + retval = false; + } -// Static member initialization -wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL; + if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw canvas)")); -wxApp::wxApp() -{ - m_topWindow = NULL; - wxTheApp = this; -// work_proc = NULL ; - m_className = ""; -// m_resourceCollection = TRUE; -// m_pendingCleanup = FALSE; - m_wantDebugOutput = TRUE ; - m_appName = ""; - argc = 0; - argv = NULL; -#ifdef __WXMSW__ - m_printMode = wxPRINT_WINDOWS; -#else - m_printMode = wxPRINT_POSTSCRIPT; -#endif - m_exitOnFrameDelete = TRUE; - m_auto3D = TRUE; + retval = false; + } +#endif // __WXMICROWIN__ + + return retval; } -bool wxApp::Initialized() +void wxApp::CleanUp() { -#ifndef _WINDLL - if (GetTopWindow()) - return TRUE; - else - return FALSE; + // all objects pending for deletion must be deleted first, otherwise we + // would crash when they use wxWinHandleHash (and UnregisterWindowClasses() + // call wouldn't succeed as long as any windows still exist), so call the + // base class method first and only then do our clean up + wxAppBase::CleanUp(); + +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + wxSetKeyboardHook(false); #endif -#ifdef _WINDLL // Assume initialized if DLL (no way of telling) - return TRUE; + + 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(); + + delete wxWinHandleHash; + wxWinHandleHash = NULL; + +#ifdef __WXWINCE__ + free( wxCanvasClassName ); + free( wxCanvasClassNameNR ); #endif } -/* - * Get and process a message, returning FALSE if WM_QUIT - * received. - * - */ -bool wxApp::DoMessage() -{ - if (!::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0)) - { - return FALSE; - } - - // Process the message - if (!ProcessMessage((WXMSG *)&s_currentMsg)) - { - ::TranslateMessage(&s_currentMsg); - wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */ - ::DispatchMessage(&s_currentMsg); - } - return TRUE; -} +// ---------------------------------------------------------------------------- +// wxApp ctor/dtor +// ---------------------------------------------------------------------------- -/* - * Keep trying to process messages until WM_QUIT - * received. - * - * If there are messages to be processed, they will all be - * processed and OnIdle will not be called. - * When there are no more messages, OnIdle is called. - * If OnIdle requests more time, - * it will be repeatedly called so long as there are no pending messages. - * A 'feature' of this is that once OnIdle has decided that no more processing - * is required, then it won't get processing time until further messages - * are processed (it'll sit in DoMessage). - */ - -int wxApp::MainLoop() +wxApp::wxApp() { - m_keepGoing = TRUE; - while (m_keepGoing) - { - while (!::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) && - ProcessIdle()) {} - if (!DoMessage()) - m_keepGoing = FALSE; - } - - return s_currentMsg.wParam; + m_printMode = wxPRINT_WINDOWS; } -// Returns TRUE if more time is needed. -bool wxApp::ProcessIdle() +wxApp::~wxApp() { - wxIdleEvent event; - event.SetEventObject(this); - ProcessEvent(event); - - return event.MoreRequested(); } -void wxApp::ExitMainLoop() +// ---------------------------------------------------------------------------- +// wxApp idle handling +// ---------------------------------------------------------------------------- + +void wxApp::OnIdle(wxIdleEvent& WXUNUSED(event)) { - m_keepGoing = FALSE; +#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)) + wxMSWDCImpl::ClearCache(); +#endif // wxUSE_DC_CACHEING } -bool wxApp::Pending() +void wxApp::WakeUpIdle() { - return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ; + // Send the top window a dummy message so idle handler processing will + // 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(); + if ( topWindow ) + { + if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) ) + { + // should never happen + wxLogLastError(wxT("PostMessage(WM_NULL)")); + } + } } -void wxApp::Dispatch() +// ---------------------------------------------------------------------------- +// other wxApp event hanlders +// ---------------------------------------------------------------------------- + +void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) { - if (!DoMessage()) - m_keepGoing = FALSE; + if (GetTopWindow()) + GetTopWindow()->Close(true); } -/* - * Give all windows a chance to preprocess - * the message. Some may have accelerator tables, or have - * MDI complications. - */ -bool wxApp::ProcessMessage(WXMSG *Msg) +// Default behaviour: close the application with prompts. The +// user can veto the close, and therefore the end session. +void wxApp::OnQueryEndSession(wxCloseEvent& event) { - MSG *msg = (MSG *)Msg; - - HWND hWnd; - - // Anyone for a message? Try youngest descendants first. - for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd)) - { - wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd); - if (wnd) + if (GetTopWindow()) { - if (wnd->MSWProcessMessage(Msg)) - return TRUE; - - // STOP if we've reached the top of the hierarchy! -// if (m_topWindow && (wnd == m_topWindow)) -// return FALSE; + if (!GetTopWindow()->Close(!event.CanVeto())) + event.Veto(true); } - } - - // TODO: Is this now obsolete, given that m_topWindow may not be defined? - // Does it do anything useful anyway? -// if (m_topWindow && m_topWindow->MSWProcessMessage(Msg)) -// return TRUE; - return FALSE; } -void wxApp::OnIdle(wxIdleEvent& event) -{ - static bool inOnIdle = FALSE; +// ---------------------------------------------------------------------------- +// system DLL versions +// ---------------------------------------------------------------------------- - // Avoid recursion (via ProcessEvent default case) - if (inOnIdle) - return; +#if wxUSE_DYNLIB_CLASS - inOnIdle = TRUE; +namespace +{ - // 'Garbage' collection of windows deleted with Close(). - DeletePendingObjects(); +// 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; - // flush the logged messages if any - wxLog *pLog = wxLog::GetActiveTarget(); - if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); + DLLVERSIONINFO dvi; + dvi.cbSize = sizeof(dvi); - // Send OnIdle events to all windows - bool needMore = SendIdleEvents(); -// bool needMore = FALSE; + HRESULT hr = (*pfnDllGetVersion)(&dvi); + if ( FAILED(hr) ) + { + wxLogApiError(_T("DllGetVersion"), hr); - if (needMore) - event.RequestMore(TRUE); + return 0; + } - inOnIdle = FALSE; + return 100*dvi.dwMajorVersion + dvi.dwMinorVersion; } -// Send idle event to all top-level windows -bool wxApp::SendIdleEvents() -{ - bool needMore = FALSE; - wxNode* node = wxTopLevelWindows.First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; - - node = node->Next(); - } - return needMore; -} +} // anonymous namespace -// Send idle event to window and all subwindows -bool wxApp::SendIdleEvents(wxWindow* win) +/* static */ +int wxApp::GetComCtl32Version() { - bool needMore = FALSE; + // cache the result + // + // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice, + // but as its value should be the same both times it doesn't matter + static int s_verComCtl32 = -1; - wxIdleEvent event; - event.SetEventObject(win); - win->ProcessEvent(event); + if ( s_verComCtl32 == -1 ) + { + // we're prepared to handle the errors + wxLogNull noLog; - if (event.MoreRequested()) - needMore = TRUE; + // the DLL should really be available + wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM); + if ( !dllComCtl32.IsLoaded() ) + { + s_verComCtl32 = 0; + return 0; + } - wxNode* node = win->GetChildren()->First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; + // try DllGetVersion() for recent DLLs + s_verComCtl32 = CallDllGetVersion(dllComCtl32); - node = node->Next(); - } - return needMore ; -} + // if DllGetVersion() is unavailable either during compile or + // run-time, try to guess the version otherwise + if ( !s_verComCtl32 ) + { + // InitCommonControlsEx is unique to 4.70 and later + void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx")); + if ( !pfn ) + { + // not found, must be 4.00 + s_verComCtl32 = 400; + } + else // 4.70+ + { + // 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; + } + } + } + } -void wxApp::DeletePendingObjects() -{ - wxNode *node = wxPendingDelete.First(); - while (node) - { - wxObject *obj = (wxObject *)node->Data(); - - delete obj; - - if (wxPendingDelete.Member(obj)) - delete node; - - // Deleting one object may have deleted other pending - // objects, so start from beginning of list again. - node = wxPendingDelete.First(); - } + return s_verComCtl32; } -/* -// Free up font objects that are not being used at present. -bool wxApp::DoResourceCleanup() +/* static */ +int wxApp::GetShell32Version() { -// wxDebugMsg("ResourceCleanup\n"); - - if (wxTheFontList) - { - wxNode *node = wxTheFontList->First(); - while (node) - { - wxGDIObject *obj = (wxGDIObject *)node->Data(); - if ((obj->GetResourceHandle() != 0) && (obj->GetResourceUsage() == 0)) - { -// wxDebugMsg("Freeing font %ld (GDI object %d)\n", (long)obj, (int)obj->GetResourceHandle()); - obj->FreeResource(); - } - node = node->Next(); - } - } - if (wxThePenList) - { - wxNode *node = wxThePenList->First(); - while (node) - { - wxGDIObject *obj = (wxGDIObject *)node->Data(); - if ((obj->GetResourceHandle() != 0) && (obj->GetResourceUsage() == 0)) - { -// wxDebugMsg("Freeing pen %ld (GDI object %d)\n", (long)obj, (int)obj->GetResourceHandle()); - obj->FreeResource(); - } - node = node->Next(); - } - } - if (wxTheBrushList) - { - wxNode *node = wxTheBrushList->First(); - while (node) + static int s_verShell32 = -1; + if ( s_verShell32 == -1 ) { - wxGDIObject *obj = (wxGDIObject *)node->Data(); - if ((obj->GetResourceHandle() != 0) && (obj->GetResourceUsage() == 0)) - { -// wxDebugMsg("Freeing brush %ld (GDI object %d)\n", (long)obj, (int)obj->GetResourceHandle()); - obj->FreeResource(); - } - node = node->Next(); + // we're prepared to handle the errors + wxLogNull noLog; + + wxDynamicLibrary dllShell32(_T("shell32.dll"), wxDL_VERBATIM); + if ( dllShell32.IsLoaded() ) + { + s_verShell32 = CallDllGetVersion(dllShell32); + + 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; + } } - } - SetPendingCleanup(FALSE); - return FALSE; + return s_verShell32; } -*/ -wxLog* wxApp::CreateLogTarget() +#else // !wxUSE_DYNLIB_CLASS + +/* static */ +int wxApp::GetComCtl32Version() { - return new wxLogGui; + return 0; } -wxWindow* wxApp::GetTopWindow() const +/* static */ +int wxApp::GetShell32Version() { - if (m_topWindow) - return m_topWindow; - else if (wxTopLevelWindows.Number() > 0) - return (wxWindow*) wxTopLevelWindows.First()->Data(); - else - return NULL; + return 0; } -int wxApp::GetComCtl32Version() const +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS + +// ---------------------------------------------------------------------------- +// Yield to incoming messages +// ---------------------------------------------------------------------------- + +bool wxApp::Yield(bool onlyIfNeeded) { - // have we loaded COMCTL32 yet? - HMODULE theModule = ::GetModuleHandle("COMCTL32"); - int version = 0; - - // if so, then we can check for the version - if (theModule) + // MT-FIXME + static bool s_inYield = 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(); +#endif // wxUSE_LOG + + if ( s_inYield ) { - // InitCommonControlsEx is unique to 4.7 and later - FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx"); - - if (! theProc) - { // not found, must be 4.00 - version = 400; - } - else + if ( !onlyIfNeeded ) { - // The following symbol are unique to 4.71 - // DllInstall - // FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos - // FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo - // FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange - // FlatSB_ShowScrollBar - // _DrawIndirectImageList _DuplicateImageList - // InitializeFlatSB - // UninitializeFlatSB - // we could check for any of these - I chose DllInstall - FARPROC theProc = ::GetProcAddress(theModule, "DllInstall"); - if (! theProc) - { - // not found, must be 4.70 - version = 470; - } - else - { // found, must be 4.71 - version = 471; - } + wxFAIL_MSG( wxT("wxYield called recursively" ) ); } + + return false; } - return version; -} -void wxExit() -{ - wxApp::CleanUp(); - FatalAppExit(0, "Fatal error: exiting"); -} + s_inYield = true; -// Yield to incoming messages -bool wxYield() -{ - MSG msg; - // We want to go back to the main message loop - // if we see a WM_QUIT. (?) - while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT) - { - if (!wxTheApp->DoMessage()) - break; - } - - return TRUE; + // we don't want to process WM_QUIT from here - it should be processed in + // the main event loop in order to stop it + MSG msg; + while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) && + msg.message != WM_QUIT ) + { +#if wxUSE_THREADS + wxMutexGuiLeaveOrEnter(); +#endif // wxUSE_THREADS + + if ( !wxTheApp->Dispatch() ) + break; + } + + // if there are pending events, we must process them. + ProcessPendingEvents(); + +#if wxUSE_LOG + // let the logs be flashed again + wxLog::Resume(); +#endif // wxUSE_LOG + + s_inYield = false; + + return true; } -HINSTANCE wxGetInstance() +#if wxUSE_EXCEPTIONS + +// ---------------------------------------------------------------------------- +// exception handling +// ---------------------------------------------------------------------------- + +bool wxApp::OnExceptionInMainLoop() { - return wxhInstance; -} + // 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; -// For some reason, with MSVC++ 1.5, WinMain isn't linked in properly -// if in a separate file. So include it here to ensure it's linked. -#if (defined(_MSC_VER) && !defined(__WIN32__)) || defined(__GNUWIN32__) -#include "main.cpp" -#endif + default: + wxFAIL_MSG( _T("unexpected MessageBox() return code") ); + // fall through + + case IDRETRY: + return false; -#undef IN_WX_MAIN_CPP + case IDIGNORE: + return true; + } +} +#endif // wxUSE_EXCEPTIONS