Made single instance checking work for wxWidgets 2.9

src/myipc.cpp

@@ -46,11 +46,17 @@ MyServerConnection::~MyServerConnection()
 }
 
 bool MyServerConnection::OnPoke (
-    const wxString& WXUNUSED ( topic ),
-    const wxString& item,
-    wxChar *data,
-    int size,
-    wxIPCFormat WXUNUSED ( format ) )
+	const wxString& WXUNUSED ( topic )
+	, const wxString& item
+#if wxCHECK_VERSION(2,9,0)
+	, const void *data
+	, size_t size
+#else
+	, wxChar *data
+	, int size
+#endif
+	, wxIPCFormat WXUNUSED ( format )
+	)
 {
 	if ( !wxTheApp )
 		return false;
@@ -90,7 +96,18 @@ wxConnectionBase *MyClient::OnMakeConnection()
 	return new MyClientConnection;
 }
 
-bool MyClientConnection::OnAdvise ( const wxString& WXUNUSED ( topic ), const wxString& WXUNUSED ( item ), wxChar *data, int WXUNUSED ( size ), wxIPCFormat WXUNUSED ( format ) )
+bool MyClientConnection::OnAdvise (
+	const wxString& WXUNUSED ( topic )
+	, const wxString& WXUNUSED ( item )
+#if wxCHECK_VERSION(2,9,0)
+	, const void * WXUNUSED ( data )
+	, size_t WXUNUSED ( size )
+#else
+	, wxChar * WXUNUSED ( data )
+	, int WXUNUSED ( size )
+#endif
+	, wxIPCFormat WXUNUSED ( format )
+	)
 {
 	return true;
 }

src/myipc.h

@@ -40,7 +40,17 @@ class MyServerConnection : public wxConnection
 	public:
 		MyServerConnection();
 		~MyServerConnection();
-		bool OnPoke ( const wxString& topic, const wxString& item, wxChar *data, int size, wxIPCFormat format );
+		bool OnPoke ( const wxString& topic
+					, const wxString& item
+#if wxCHECK_VERSION(2,9,0)
+					, const void *data
+					, size_t size
+#else
+					, wxChar *data
+					, int size
+#endif
+					, wxIPCFormat format
+					);
 		bool OnStartAdvise ( const wxString& topic, const wxString& item );
 };
 
@@ -48,7 +58,16 @@ class MyClientConnection: public wxConnection
 {
 	public:
 		MyClientConnection();
-		bool OnAdvise ( const wxString& topic, const wxString& item, wxChar *data, int size, wxIPCFormat format );
+		bool OnAdvise ( const wxString& topic
+					, const wxString& item
+#if wxCHECK_VERSION(2,9,0)
+					, const void *data
+					, size_t size
+#else
+					, wxChar *data
+					, int size
+#endif
+					, wxIPCFormat format );
 		bool OnDisconnect();
 };
 

src/xmlcopyeditor.cpp

@@ -205,8 +205,6 @@ IMPLEMENT_APP ( MyApp)
 MyApp::MyApp()
 	: checker ( NULL )
 	, server ( NULL )
-	, client ( NULL )
-	, connection ( NULL )
 	, singleInstanceCheck ( false )
 	, lang ( 0 )
 #if defined(__WXMSW__) && !wxCHECK_VERSION(2,9,0)
@@ -227,7 +225,6 @@ MyApp::~MyApp()
 
 	delete checker;
 	delete server;
-	delete connection;
 }
 
 bool MyApp::OnInit()
@@ -337,9 +334,9 @@ bool MyApp::OnInit()
 		while ( checker->IsAnotherRunning() )
 		{
 			// attempt calling server
-			client = new MyClient();
-			connection = ( MyClientConnection * )
-			             client->MakeConnection ( hostName, service, IPC_TOPIC );
+			MyClient client;
+			MyClientConnection *connection = ( MyClientConnection * )
+			             client.MakeConnection ( hostName, service, IPC_TOPIC );
 			if ( !connection || !connection->StartAdvise ( IPC_ADVISE_NAME ) )
 				break;
 			else

src/xmlcopyeditor.h

@@ -185,8 +185,6 @@ class MyApp : public wxApp
 	private:
 		wxSingleInstanceChecker *checker;
 		MyServer *server;
-		MyClient *client;
-		MyClientConnection *connection;
 		bool singleInstanceCheck;
 		int lang;
 		std::auto_ptr<wxFileConfig> config;