X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0728199b911be9095406cf05059a5a180e707778..dd9f8b6bb6935360a8271dc3e8749fb026b601a8:/src/msw/app.cpp diff --git a/src/msw/app.cpp b/src/msw/app.cpp index f1cdf6d385..04916f784b 100644 --- a/src/msw/app.cpp +++ b/src/msw/app.cpp @@ -49,8 +49,10 @@ #include "wx/filename.h" #include "wx/dynlib.h" #include "wx/evtloop.h" +#include "wx/thread.h" #include "wx/msw/private.h" +#include "wx/msw/dc.h" #include "wx/msw/ole/oleutils.h" #include "wx/msw/private/timer.h" @@ -60,7 +62,7 @@ // 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 @@ -266,11 +268,15 @@ wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const #endif } +#if wxUSE_TIMER + wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) { return new wxMSWTimerImpl(timer); } +#endif // wxUSE_TIMER + wxEventLoopBase* wxGUIAppTraits::CreateEventLoop() { return new wxEventLoop; @@ -320,9 +326,9 @@ bool wxApp::Initialize(int& argc, wxChar **argv) #ifdef __WXWINCE__ wxString tmp = GetAppName(); tmp += wxT("ClassName"); - wxCanvasClassName = wxStrdup( tmp.c_str() ); + wxCanvasClassName = wxStrdup( tmp.wc_str() ); tmp += wxT("NR"); - wxCanvasClassNameNR = wxStrdup( tmp.c_str() ); + wxCanvasClassNameNR = wxStrdup( tmp.wc_str() ); HWND hWnd = FindWindow( wxCanvasClassNameNR, NULL ); if (hWnd) { @@ -349,8 +355,6 @@ bool wxApp::Initialize(int& argc, wxChar **argv) RegisterWindowClasses(); - wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100); - #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) wxSetKeyboardHook(true); #endif @@ -504,10 +508,10 @@ bool wxApp::UnregisterWindowClasses() void wxApp::CleanUp() { - // 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 + // 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 !defined(__WXMICROWIN__) && !defined(__WXWINCE__) @@ -522,9 +526,6 @@ void wxApp::CleanUp() // unregister the classes now UnregisterWindowClasses(); - delete wxWinHandleHash; - wxWinHandleHash = NULL; - #ifdef __WXWINCE__ free( wxCanvasClassName ); free( wxCanvasClassNameNR ); @@ -548,14 +549,14 @@ wxApp::~wxApp() // wxApp idle handling // ---------------------------------------------------------------------------- -void wxApp::OnIdle(wxIdleEvent& event) +void wxApp::OnIdle(wxIdleEvent& WXUNUSED(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)) - wxDC::ClearCache(); + wxMSWDCImpl::ClearCache(); #endif // wxUSE_DC_CACHEING } @@ -565,13 +566,28 @@ 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) - wxWindow *topWindow = wxTheApp->GetTopWindow(); + wxWindow * const topWindow = wxTheApp->GetTopWindow(); 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)")); + } } } } @@ -598,15 +614,45 @@ void wxApp::OnQueryEndSession(wxCloseEvent& event) } // ---------------------------------------------------------------------------- -// miscellaneous +// 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() { -#if defined(__WXMICROWIN__) || defined(__WXWINCE__) - return 0; -#else // cache the result // // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice, @@ -615,78 +661,105 @@ int wxApp::GetComCtl32Version() if ( s_verComCtl32 == -1 ) { - // initally assume no comctl32.dll at all - s_verComCtl32 = 0; - // we're prepared to handle the errors wxLogNull noLog; -#if wxUSE_DYNLIB_CLASS - // do we have it? + // the DLL should really be available wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM); + 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 ) { - // now check if the function is available during run-time - 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; } - - // 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 ) { - // 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; } } } -#endif } return s_verComCtl32; -#endif // Microwin/!Microwin } +/* 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); + + 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() +{ + return 0; +} + +/* static */ +int wxApp::GetShell32Version() +{ + return 0; +} + +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS + +#endif // !__WXWINCE__ + +// ---------------------------------------------------------------------------- // Yield to incoming messages +// ---------------------------------------------------------------------------- bool wxApp::Yield(bool onlyIfNeeded) {