+long wxExecute(const wxString& cmd, bool sync, wxProcess *handler)
+{
+ wxCHECK_MSG( !!cmd, 0, wxT("empty command in wxExecute") );
+
+ wxString command;
+#if wxUSE_IPC
+ // DDE hack: this is really not pretty, but we need to allow this for
+ // transparent handling of DDE servers in wxMimeTypesManager. Usually it
+ // returns the command which should be run to view/open/... a file of the
+ // given type. Sometimes, however, this command just launches the server
+ // and an additional DDE request must be made to really open the file. To
+ // keep all this well hidden from the application, we allow a special form
+ // of command: WX_DDE:<command>:DDE_SERVER:DDE_TOPIC:DDE_COMMAND in which
+ // case we execute just <command> and process the rest below
+ wxString ddeServer, ddeTopic, ddeCommand;
+ static const size_t lenDdePrefix = 7; // strlen("WX_DDE:")
+ if ( cmd.Left(lenDdePrefix) == _T("WX_DDE#") )
+ {
+ const wxChar *p = cmd.c_str() + 7;
+ while ( *p && *p != _T('#') )
+ {
+ command += *p++;
+ }
+
+ if ( *p )
+ {
+ // skip '#'
+ p++;
+ }
+ else
+ {
+ wxFAIL_MSG(_T("invalid WX_DDE command in wxExecute"));
+ }
+
+ while ( *p && *p != _T('#') )
+ {
+ ddeServer += *p++;
+ }
+
+ if ( *p )
+ {
+ // skip '#'
+ p++;
+ }
+ else
+ {
+ wxFAIL_MSG(_T("invalid WX_DDE command in wxExecute"));
+ }
+
+ while ( *p && *p != _T('#') )
+ {
+ ddeTopic += *p++;
+ }
+
+ if ( *p )
+ {
+ // skip '#'
+ p++;
+ }
+ else
+ {
+ wxFAIL_MSG(_T("invalid WX_DDE command in wxExecute"));
+ }
+
+ while ( *p )
+ {
+ ddeCommand += *p++;
+ }
+ }
+ else
+#endif // wxUSE_IPC
+ {
+ // no DDE
+ command = cmd;
+ }
+
+#if defined(__WIN32__) && !defined(__TWIN32__)
+ // the old code is disabled because we really need a process handle
+ // if we want to execute it asynchronously or even just get its
+ // return code and for this we must use CreateProcess() and not
+ // ShellExecute()
+#if 0
+ // isolate command and arguments
+ wxString commandName;
+ bool insideQuotes = FALSE;
+ const char *pc;
+ for ( pc = command.c_str(); *pc != '\0'; pc++ )
+ {
+ switch ( *pc )
+ {
+ case ' ':
+ case '\t':
+ if ( !insideQuotes )
+ break;
+ // fall through
+
+ case '"':
+ insideQuotes = !insideQuotes;
+ // fall through
+
+ default:
+ commandName += *pc;
+ continue; // skip the next break
+ }
+
+ // only reached for space not inside quotes
+ break;
+ }
+
+ wxString commandArgs = pc;
+
+ wxWindow *winTop = wxTheApp->GetTopWindow();
+ HWND hwndTop = (HWND)(winTop ? winTop->GetHWND() : 0);
+
+ HANDLE result;
+#ifdef __GNUWIN32__
+ result = ShellExecute(hwndTop,
+ (const wchar_t)"open",
+ (const wchar_t)commandName,
+ (const wchar_t)commandArgs,
+ (const wchar_t)NULL,
+ SW_SHOWNORMAL);
+#else // !GNUWIN32
+ result = ShellExecute(hwndTop, "open", commandName,
+ commandArgs, NULL, SW_SHOWNORMAL);
+#endif // GNUWIN32
+
+ if ( ((long)result) <= 32 )
+ wxLogSysError(_("Can't execute command '%s'"), command.c_str());
+
+ return result;
+#else // 1
+
+ // create the process
+ STARTUPINFO si;
+ wxZeroMemory(si);
+
+ si.cb = sizeof(si);
+
+ PROCESS_INFORMATION pi;
+
+ if ( ::CreateProcess(
+ NULL, // application name (use only cmd line)
+ (wxChar *)command.c_str(), // full command line
+ NULL, // security attributes: defaults for both
+ NULL, // the process and its main thread
+ FALSE, // don't inherit handles
+ CREATE_DEFAULT_ERROR_MODE |
+ CREATE_SUSPENDED, // flags
+ NULL, // environment (use the same)
+ NULL, // current directory (use the same)
+ &si, // startup info (unused here)
+ &pi // process info
+ ) == 0 )
+ {
+ wxLogSysError(_("Execution of command '%s' failed"), command.c_str());
+
+ return 0;
+ }
+
+ // register the class for the hidden window used for the notifications
+ if ( !gs_classForHiddenWindow )
+ {
+ gs_classForHiddenWindow = _T("wxHiddenWindow");
+
+ WNDCLASS wndclass;
+ wxZeroMemory(wndclass);
+ wndclass.lpfnWndProc = (WNDPROC)wxExecuteWindowCbk;
+ wndclass.hInstance = wxGetInstance();
+ wndclass.lpszClassName = gs_classForHiddenWindow;
+
+ if ( !::RegisterClass(&wndclass) )
+ {
+ wxLogLastError("RegisterClass(hidden window)");
+ }
+ }
+
+ // create a hidden window to receive notification about process
+ // termination
+ HWND hwnd = ::CreateWindow(gs_classForHiddenWindow, NULL,
+ WS_OVERLAPPEDWINDOW,
+ 0, 0, 0, 0, NULL,
+ (HMENU)NULL, wxGetInstance(), 0);
+ wxASSERT_MSG( hwnd, wxT("can't create a hidden window for wxExecute") );
+
+ // Alloc data
+ wxExecuteData *data = new wxExecuteData;
+ data->hProcess = pi.hProcess;
+ data->dwProcessId = pi.dwProcessId;
+ data->hWnd = hwnd;
+ data->state = sync;
+ if ( sync )
+ {
+ wxASSERT_MSG( !handler, wxT("wxProcess param ignored for sync execution") );
+
+ data->handler = NULL;
+ }
+ else
+ {
+ // may be NULL or not
+ data->handler = handler;
+ }
+
+ DWORD tid;
+ HANDLE hThread = ::CreateThread(NULL,
+ 0,
+ (LPTHREAD_START_ROUTINE)wxExecuteThread,
+ (void *)data,
+ 0,
+ &tid);
+
+ // resume process we created now - whether the thread creation succeeded or
+ // not
+ if ( ::ResumeThread(pi.hThread) == (DWORD)-1 )
+ {
+ // ignore it - what can we do?
+ wxLogLastError("ResumeThread in wxExecute");
+ }
+
+ // close unneeded handle
+ if ( !::CloseHandle(pi.hThread) )
+ wxLogLastError("CloseHandle(hThread)");
+
+ if ( !hThread )
+ {
+ wxLogLastError("CreateThread in wxExecute");
+
+ DestroyWindow(hwnd);
+ delete data;
+
+ // the process still started up successfully...
+ return pi.dwProcessId;
+ }
+
+#if wxUSE_IPC
+ // second part of DDE hack: now establish the DDE conversation with the
+ // just launched process
+ if ( !!ddeServer )
+ {
+ wxDDEClient client;
+ wxConnectionBase *conn = client.MakeConnection(_T(""),
+ ddeServer,
+ ddeTopic);
+ if ( !conn || !conn->Execute(ddeCommand) )
+ {
+ wxLogError(_("Couldn't launch DDE server '%s'."), command.c_str());
+ }
+ }
+#endif // wxUSE_IPC
+
+ if ( !sync )
+ {
+ // clean up will be done when the process terminates
+
+ // return the pid
+ return pi.dwProcessId;
+ }
+
+ // waiting until command executed (disable everything while doing it)
+#if wxUSE_GUI
+ wxBeginBusyCursor();
+ wxEnableTopLevelWindows(FALSE);
+#endif // wxUSE_GUI
+
+ while ( data->state )
+ wxYield();
+
+#if wxUSE_GUI
+ wxEnableTopLevelWindows(TRUE);
+ wxEndBusyCursor();
+#endif // wxUSE_GUI
+
+ DWORD dwExitCode = data->dwExitCode;
+ delete data;
+
+ // return the exit code
+ return dwExitCode;
+#endif // 0/1
+#else // Win16
+ long instanceID = WinExec((LPCSTR) WXSTRINGCAST command, SW_SHOW);
+ if (instanceID < 32) return(0);
+
+ if (sync) {
+ int running;
+ do {
+ wxYield();
+ running = GetModuleUsage((HINSTANCE)instanceID);
+ } while (running);
+ }
+
+ return(instanceID);
+#endif // Win16/32
+}
projects / wxWidgets.git / blobdiff