+#endif // wxUSE_BASE
+
+#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() != wxOS_WINDOWS_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
+// ----------------------------------------------------------------------------
+
+// helper function used to clean up in wxEntry() just below
+//
+// notice that argv elements are supposed to be allocated using malloc() while
+// argv array itself is allocated with new
+static void wxFreeArgs(int argc, wxChar **argv)
+{
+ for ( int i = 0; i < argc; i++ )
+ {
+ free(argv[i]);
+ }
+
+ delete [] argv;
+}
+
+WXDLLEXPORT int wxEntry(HINSTANCE hInstance,
+ HINSTANCE WXUNUSED(hPrevInstance),
+ 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;
+
+ // parse the command line: we can't use pCmdLine in Unicode build so it is
+ // simpler to never use it at all (this also results in a more correct
+ // argv[0])
+
+ // break the command line in words
+ wxArrayString args;
+
+ const wxChar *cmdLine = ::GetCommandLine();
+ if ( cmdLine )
+ {
+ args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
+ }
+
+#ifdef __WXWINCE__
+ // WinCE doesn't insert the program itself, so do it ourselves.
+ args.Insert(wxGetFullModuleName(), 0);
+#endif
+
+ int argc = args.GetCount();
+
+ // +1 here for the terminating NULL
+ wxChar **argv = new wxChar *[argc + 1];
+ for ( int i = 0; i < argc; i++ )
+ {
+ argv[i] = wxStrdup(args[i]);
+ }
+
+ // argv[] must be NULL-terminated
+ argv[argc] = NULL;
+
+ wxON_BLOCK_EXIT2(wxFreeArgs, argc, argv);
+
+ return wxEntry(argc, argv);
+}
+
+#endif // wxUSE_GUI && __WXMSW__
projects / wxWidgets.git / blobdiff