extracted wxFrame::MSWTranslateMessage() implementation into new MSWDoTranslateMessag...

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

diff --git a/src/msw/main.cpp b/src/msw/main.cpp
index 512287bf440e7d00257801e6f3a3f4e91e6a0dab..35f1ada5fc6a9def1a20378859348cc22f9a8942 100644 (file)
--- a/src/msw/main.cpp
+++ b/src/msw/main.cpp
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation
-#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"
 


@@ -61,13 +57,16 @@
     #define HINSTANCE HANDLE
 #endif
 
     #define HINSTANCE HANDLE
 #endif
 

+// defined in common/init.cpp
+extern int wxEntryReal(int& argc, wxChar **argv);
+

 // ============================================================================
 // implementation: various entry points
 // ============================================================================
 
 #if wxUSE_BASE
 
 // ============================================================================
 // implementation: various entry points
 // ============================================================================
 
 #if wxUSE_BASE
 

-#ifdef __VISUALC__
+#if wxUSE_ON_FATAL_EXCEPTION && defined(__VISUALC__) && !defined(__WXWINCE__)

     // VC++ (at least from 4.0 up to version 7.1) is incredibly broken in that
     // a "catch ( ... )" will *always* catch SEH exceptions in it even though
     // it should have never been the case... to prevent such catches from
     // VC++ (at least from 4.0 up to version 7.1) is incredibly broken in that
     // a "catch ( ... )" will *always* catch SEH exceptions in it even though
     // it should have never been the case... to prevent such catches from


@@ -90,16 +89,13 @@
 #endif // __VISUALC__/!__VISUALC__
 
 // ----------------------------------------------------------------------------
 #endif // __VISUALC__/!__VISUALC__
 
 // ----------------------------------------------------------------------------

-// wrapper wxEntry catching all Win32 exceptions occuring in a wx program
+// wrapper wxEntry catching all Win32 exceptions occurring in a wx program

 // ----------------------------------------------------------------------------
 
 // wrap real wxEntry in a try-except block to be able to call
 // OnFatalException() if necessary
 #if wxUSE_ON_FATAL_EXCEPTION
 
 // ----------------------------------------------------------------------------
 
 // wrap real wxEntry in a try-except block to be able to call
 // OnFatalException() if necessary
 #if wxUSE_ON_FATAL_EXCEPTION
 

-// defined in common/init.cpp
-extern int wxEntryReal(int& argc, wxChar **argv);
-

 // global pointer to exception information, only valid inside OnFatalException,
 // used by wxStackWalker and wxCrashReport
 extern EXCEPTION_POINTERS *wxGlobalSEInformation = NULL;
 // global pointer to exception information, only valid inside OnFatalException,
 // used by wxStackWalker and wxCrashReport
 extern EXCEPTION_POINTERS *wxGlobalSEInformation = NULL;


@@ -219,13 +215,18 @@ int wxEntry(int& argc, wxChar **argv)
     {
         wxFatalExit();
 
     {
         wxFatalExit();
 

-        // this code is unreachable but put it here to suppress warnings
+#if !defined(_MSC_VER) || defined(__WXDEBUG__) || (defined(_MSC_VER) && _MSC_VER <= 1200)
+        // this code is unreachable but put it here to suppress warnings in some compilers
+        // and disable for others to supress warnings too

         return -1;
         return -1;

+#endif // !__VISUALC__ in release build

     }
 }
 
 #else // !wxUSE_ON_FATAL_EXCEPTION
 
     }
 }
 
 #else // !wxUSE_ON_FATAL_EXCEPTION
 

+#if defined(__VISUALC__) && !defined(__WXWINCE__)
+

 static void
 wxSETranslator(unsigned int WXUNUSED(code), EXCEPTION_POINTERS * WXUNUSED(ep))
 {
 static void
 wxSETranslator(unsigned int WXUNUSED(code), EXCEPTION_POINTERS * WXUNUSED(ep))
 {


@@ -233,6 +234,8 @@ wxSETranslator(unsigned int WXUNUSED(code), EXCEPTION_POINTERS * WXUNUSED(ep))
     throw;
 }
 
     throw;
 }
 

+#endif // __VISUALC__
+

 int wxEntry(int& argc, wxChar **argv)
 {
     DisableAutomaticSETranslator();
 int wxEntry(int& argc, wxChar **argv)
 {
     DisableAutomaticSETranslator();


@@ -244,7 +247,85 @@ int wxEntry(int& argc, wxChar **argv)
 
 #endif // wxUSE_BASE
 
 
 #endif // wxUSE_BASE
 

-#if wxUSE_GUI
+#if wxUSE_GUI && defined(__WXMSW__)
+
+#if wxUSE_UNICODE && !defined(__WXWINCE__)
+    #define NEED_UNICODE_CHECK
+#endif
+
+#ifdef NEED_UNICODE_CHECK
+
+// check whether Unicode is available
+static bool wxIsUnicodeAvailable()
+{
+    static const wchar_t *ERROR_STRING = L"wxWidgets Fatal Error";
+
+    if ( wxGetOsVersion() != wxWINDOWS_NT )
+    {
+        // we need to be built with MSLU support
+#if !wxUSE_UNICODE_MSLU 
+        // 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,
+         L"This program uses Unicode and requires Windows NT/2000/XP.\n"
+         L"\n"
+         L"Program aborted.",
+         ERROR_STRING,
+         MB_ICONERROR | MB_OK
+        );
+
+        return false;
+#else // wxUSE_UNICODE_MSLU
+        // and the MSLU DLL must also be available
+        HMODULE hmod = ::LoadLibraryA("unicows.dll");
+        if ( !hmod )
+        {
+            ::MessageBox
+            (
+             NULL,
+             L"This program uses Unicode and requires unicows.dll to work "
+             L"under current operating system.\n"
+             L"\n"
+             L"Please install unicows.dll and relaunch the program.",
+             ERROR_STRING,
+             MB_ICONERROR | MB_OK
+            );
+            return false;
+        }
+
+        // this is not really necessary but be tidy
+        ::FreeLibrary(hmod);
+
+        // finally do the last check: has unicows.lib initialized correctly?
+        hmod = ::LoadLibraryW(L"unicows.dll");
+        if ( !hmod )
+        {
+            ::MessageBox
+            (
+             NULL,
+             L"This program uses Unicode but is not using unicows.dll\n"
+             L"correctly and so cannot work under current operating system.\n"
+             L"Please contact the program author for an updated version.\n"
+             L"\n"
+             L"Program aborted.",
+             ERROR_STRING,
+             MB_ICONERROR | MB_OK
+            );
+
+            return false;
+        }
+
+        ::FreeLibrary(hmod);
+#endif // !wxUSE_UNICODE_MSLU
+    }
+
+    return true;
+}
+
+#endif // NEED_UNICODE_CHECK

 
 // ----------------------------------------------------------------------------
 // Windows-specific wxEntry
 
 // ----------------------------------------------------------------------------
 // Windows-specific wxEntry


@@ -255,6 +336,15 @@ WXDLLEXPORT int wxEntry(HINSTANCE hInstance,
                         wxCmdLineArgType WXUNUSED(pCmdLine),
                         int nCmdShow)
 {
                         wxCmdLineArgType WXUNUSED(pCmdLine),
                         int nCmdShow)
 {

+    // 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 and has all chances to crash
+#ifdef NEED_UNICODE_CHECK
+    if ( !wxIsUnicodeAvailable() )
+        return -1;
+#endif // NEED_UNICODE_CHECK
+
+

     // remember the parameters Windows gave us
     wxSetInstance(hInstance);
     wxApp::m_nCmdShow = nCmdShow;
     // remember the parameters Windows gave us
     wxSetInstance(hInstance);
     wxApp::m_nCmdShow = nCmdShow;


@@ -292,56 +382,7 @@ WXDLLEXPORT int wxEntry(HINSTANCE hInstance,
     return wxEntry(argc, argv);
 }
 
     return wxEntry(argc, argv);
 }
 

-// May wish not to have a DllMain or WinMain, e.g. if we're programming
-// a Netscape plugin or if we're writing a console application
-#if !defined(NOMAIN)
-
-extern "C"
-{
-
-// ----------------------------------------------------------------------------
-// WinMain
-// ----------------------------------------------------------------------------
-
-// Note that WinMain is also defined in dummy.obj, which is linked to
-// an application that is using the DLL version of wxWidgets.
-
-#if defined(_WINDLL)
-
-// DLL entry point
-
-BOOL WINAPI
-DllMain(HANDLE hModule, DWORD fdwReason, LPVOID WXUNUSED(lpReserved))
-{
-    // Only call wxEntry if the application itself is part of the DLL.
-    // If only the wxWidgets library is in the DLL, then the
-    // initialisation will be called when the application implicitly
-    // calls WinMain.
-#ifndef WXMAKINGDLL
-    switch (fdwReason)
-    {
-        case DLL_PROCESS_ATTACH:
-            return wxEntry(hModule);
-
-        case DLL_PROCESS_DETACH:
-            wxEntryCleanup();
-            break;
-    }
-#else
-    (void)hModule;
-    (void)fdwReason;
-#endif // !WXMAKINGDLL
-
-    return TRUE;
-}
-
-#endif // _WINDLL
-
-} // extern "C"
-
-#endif // !NOMAIN
-
-#endif // wxUSE_GUI
+#endif // wxUSE_GUI && __WXMSW__

 
 // ----------------------------------------------------------------------------
 // global HINSTANCE
 
 // ----------------------------------------------------------------------------
 // global HINSTANCE