Message box describing fatal exception is now presented

Author: dominicprice

frontend/gtkmm/main.cc

@@ -8,30 +8,47 @@
 
 #ifdef _WIN32
 #include <Windows.h>
+#include <stdlib.h>
 #endif
 
-// Cadabra frontend with GTK+ interface (using gtkmm). 
+// Cadabra frontend with GTK+ interface (using gtkmm).
 // Makes use of the client classes in the client_server directory.
 
 int main(int argc, char **argv)
-	{
+{
 	try {
 		auto application = Cadabra::create(argc, argv);
 		const int status = application->run();
 		return status;
-		}
-	catch(Glib::Error& er) {
+	}
+	catch (Glib::Error& er) {
 		std::cerr << er.what() << std::endl;
 		return -1;
-		}
-	catch(std::exception& ex) {
-	  std::cerr << ex.what() << std::endl;
-		}
 	}
+	catch (std::exception& ex) {
+		std::cerr << ex.what() << std::endl;
+	}
+}
 
 #if defined(_WIN32) && defined(NDEBUG)
 int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 {
-	main(0, 0);
+	try {
+		auto application = Cadabra::create(__argc, __argv);
+		const int status = application->run();
+		return status;
+	}
+	catch (Glib::Error& er) {
+		Gtk::MessageDialog(er.what()).run();
+		return -1;
+	}
+	catch (std::exception& ex) {
+		Gtk::MessageDialog(ex.what()).run();
+		return -1;
+	}
+	catch (...) {
+		Gtk::MessageDialog("An unknown error occured :(").run();
+		throw;
+	}
 }
-#endif
+#endif