+ if ( key.Exists() )
+ {
+ wxRegKey keyDDE(key, wxT("DDEExec"));
+ if ( keyDDE.Exists() )
+ {
+ // we only know the syntax of WWW_OpenURL DDE request for IE,
+ // optimistically assume that all other browsers are compatible
+ // with it
+ static const wxChar *TOPIC_OPEN_URL = wxT("WWW_OpenURL");
+ wxString ddeCmd;
+ wxRegKey keyTopic(keyDDE, wxT("topic"));
+ bool ok = keyTopic.Exists() &&
+ keyTopic.QueryDefaultValue() == TOPIC_OPEN_URL;
+ if ( ok )
+ {
+ ddeCmd = keyDDE.QueryDefaultValue();
+ ok = !ddeCmd.empty();
+ }
+
+ if ( ok )
+ {
+ // for WWW_OpenURL, the index of the window to open the URL
+ // in is -1 (meaning "current") by default, replace it with
+ // 0 which means "new" (see KB article 160957)
+ ok = ddeCmd.Replace(wxT("-1"), wxT("0"),
+ false /* only first occurrence */) == 1;
+ }
+
+ if ( ok )
+ {
+ // and also replace the parameters: the topic should
+ // contain a placeholder for the URL
+ ok = ddeCmd.Replace(wxT("%1"), url, false) == 1;
+ }
+
+ if ( ok )
+ {
+ // try to send it the DDE request now but ignore the errors
+ wxLogNull noLog;
+
+ const wxString ddeServer = wxRegKey(keyDDE, wxT("application"));
+ if ( wxExecuteDDE(ddeServer, TOPIC_OPEN_URL, ddeCmd) )
+ return true;
+
+ // this is not necessarily an error: maybe browser is
+ // simply not running, but no matter, in any case we're
+ // going to launch it using ShellExecuteEx() below now and
+ // we shouldn't try to open a new window if we open a new
+ // browser anyhow
+ }
+ }
+ }
+ }
+#endif // wxUSE_IPC
+
+ WinStruct<SHELLEXECUTEINFO> sei;
+ sei.lpFile = url.c_str();
+ sei.lpVerb = _T("open");
+ sei.nShow = SW_SHOWNORMAL;
+ sei.fMask = SEE_MASK_FLAG_NO_UI; // we give error message ourselves
+
+ if ( ::ShellExecuteEx(&sei) )
+ return true;
+#elif defined(__WXCOCOA__)
+ // NOTE: We need to call the real implementation from src/cocoa/utils.mm
+ // because the code must use Objective-C features.
+ return wxCocoaLaunchDefaultBrowser(url, flags);
+#elif defined(__WXMAC__) && !defined(__WXOSX_IPHONE__)
+ wxCFRef< CFURLRef > curl( CFURLCreateWithString( kCFAllocatorDefault,
+ wxCFStringRef( url ), NULL ) );
+ OSStatus err = LSOpenCFURLRef( curl , NULL );
+
+ if (err == noErr)
+ {
+ return true;
+ }
+ else
+ {
+ wxLogDebug(wxT("Browser Launch error %d"), (int) err);
+ return false;
+ }
+#else
+ // (non-Mac, non-MSW)
+
+#ifdef __UNIX__
+
+ // Our best best is to use xdg-open from freedesktop.org cross-desktop
+ // compatibility suite xdg-utils
+ // (see http://portland.freedesktop.org/wiki/) -- this is installed on
+ // most modern distributions and may be tweaked by them to handle
+ // distribution specifics. Only if that fails, try to find the right
+ // browser ourselves.
+ wxString path, xdg_open;
+ if ( wxGetEnv("PATH", &path) &&
+ wxFindFileInPath(&xdg_open, path, "xdg-open") )
+ {
+ if ( wxExecute(xdg_open + " " + url) )
+ return true;