// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/event.h"
#include "wx/app.h"
#include "wx/cmdline.h"
+#include "wx/scopeguard.h"
#include "wx/msw/private.h"
#endif // wxUSE_BASE
-#if wxUSE_GUI
+#if wxUSE_GUI && defined(__WXMSW__)
-// ----------------------------------------------------------------------------
-// Windows-specific wxEntry
-// ----------------------------------------------------------------------------
+#if wxUSE_UNICODE && !defined(__WXWINCE__)
+ #define NEED_UNICODE_CHECK
+#endif
-WXDLLEXPORT int wxEntry(HINSTANCE hInstance,
- HINSTANCE WXUNUSED(hPrevInstance),
- wxCmdLineArgType WXUNUSED(pCmdLine),
- int nCmdShow)
+#ifdef NEED_UNICODE_CHECK
+
+// check whether Unicode is available
+static bool wxIsUnicodeAvailable()
{
- // 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
-#if wxUSE_UNICODE && !wxUSE_UNICODE_MSLU && !defined(__WXWINCE__)
+ 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,
- _T("This program uses Unicode and requires Windows NT/2000/XP.\nProgram aborted."),
- _T("wxWidgets Fatal Error"),
+ L"This program uses Unicode and requires Windows NT/2000/XP.\n"
+ L"\n"
+ L"Program aborted.",
+ ERROR_STRING,
MB_ICONERROR | MB_OK
);
- return -1;
+ 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]);
}
-#endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU
+
+ 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
// argv[] must be NULL-terminated
argv[argc] = NULL;
- 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"
-{
+ wxON_BLOCK_EXIT2(wxFreeArgs, argc, argv);
-// ----------------------------------------------------------------------------
-// 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(HINSTANCE 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;
+ return wxEntry(argc, argv);
}
-#endif // _WINDLL
-
-} // extern "C"
-
-#endif // !NOMAIN
-
-#endif // wxUSE_GUI
+#endif // wxUSE_GUI && __WXMSW__
// ----------------------------------------------------------------------------
// global HINSTANCE
projects / wxWidgets.git / blobdiff