// global variables
// ----------------------------------------------------------------------------
-char ipc_buffer[4000];
MyConnection *the_connection = NULL;
// ============================================================================
bool MyApp::OnInit()
{
// Create the main frame window
- (new MyFrame(NULL, "Server"))->Show(TRUE);
+ (new MyFrame(NULL, _T("Server")))->Show(TRUE);
// service name (DDE classes) or port number (TCP/IP based classes)
wxString service = IPC_SERVICE;
// Make a menubar
wxMenu *file_menu = new wxMenu;
- file_menu->Append(SERVER_EXIT, "&Quit\tCtrl-Q");
+ file_menu->Append(SERVER_EXIT, _T("&Quit\tCtrl-Q"));
wxMenuBar *menu_bar = new wxMenuBar;
- menu_bar->Append(file_menu, "&File");
+ menu_bar->Append(file_menu, _T("&File"));
// Associate the menu bar with the frame
SetMenuBar(menu_bar);
// Make a listbox
wxListBox *list = new wxListBox(this, SERVER_LISTBOX, wxPoint(5, 5));
- list->Append("Apple");
- list->Append("Pear");
- list->Append("Orange");
- list->Append("Banana");
- list->Append("Fruit");
+ list->Append(_T("Apple"));
+ list->Append(_T("Pear"));
+ list->Append(_T("Orange"));
+ list->Append(_T("Banana"));
+ list->Append(_T("Fruit"));
}
// Set the client process's listbox to this item
if (listBox)
{
wxString value = listBox->GetStringSelection();
+
+ /* Because the_connection only holds one connection, in this sample only
+ one connection can receive advise messages */
if (the_connection)
{
- the_connection->Advise(IPC_ADVISE_NAME, (wxChar *)value.c_str());
+ the_connection->Advise(IPC_ADVISE_NAME, (wxChar*)value.c_str());
}
}
}
: wxDialog(parent, -1, title, pos, size)
{
m_connection = connection;
- (void)new wxButton(this, SERVER_QUIT_BUTTON, "Quit this connection",
+ (void)new wxButton(this, SERVER_QUIT_BUTTON, _T("Quit this connection"),
wxPoint(5, 5));
Fit();
}
+IPCDialogBox::~IPCDialogBox( )
+{
+ // wxWindows exit code destroys dialog before destroying the connection in
+ // OnExit, so make sure connection won't try to delete the dialog later.
+ if (m_connection)
+ m_connection->dialog = NULL;
+}
+
void IPCDialogBox::OnQuit(wxCommandEvent& event)
{
m_connection->Disconnect();
wxConnectionBase *MyServer::OnAcceptConnection(const wxString& topic)
{
if ( topic == IPC_TOPIC )
- return new MyConnection(ipc_buffer, WXSIZEOF(ipc_buffer));
+ return new MyConnection();
// unknown topic
return NULL;
// MyConnection
// ----------------------------------------------------------------------------
-MyConnection::MyConnection(char *buf, int size)
- : wxConnection(buf, size)
+MyConnection::MyConnection()
+ : wxConnection()
{
- dialog = new IPCDialogBox(wxTheApp->GetTopWindow(), "Connection",
+ dialog = new IPCDialogBox(wxTheApp->GetTopWindow(), _T("Connection"),
wxPoint(100, 100), wxSize(500, 500), this);
dialog->Show(TRUE);
the_connection = this;
{
if (the_connection)
{
- dialog->Destroy();
+ if (dialog)
+ {
+ dialog->m_connection = NULL;
+ dialog->Destroy();
+ }
the_connection = NULL;
}
}
bool MyConnection::OnExecute(const wxString& WXUNUSED(topic),
- char *data,
+ wxChar *data,
int WXUNUSED(size),
wxIPCFormat WXUNUSED(format))
{
bool MyConnection::OnPoke(const wxString& WXUNUSED(topic),
const wxString& item,
- char *data,
+ wxChar *data,
int WXUNUSED(size),
wxIPCFormat WXUNUSED(format))
{
return TRUE;
}
-char *MyConnection::OnRequest(const wxString& WXUNUSED(topic),
+wxChar *MyConnection::OnRequest(const wxString& WXUNUSED(topic),
const wxString& WXUNUSED(item),
int * WXUNUSED(size),
wxIPCFormat WXUNUSED(format))
{
- return "Here, have your data, client!";
+ return _T("Here, have your data, client!");
}
bool MyConnection::OnStartAdvise(const wxString& WXUNUSED(topic),