All of the Photon widgets and Gamma functions used here have been discussed in previous chapters.

   /*--------------------------------------------------------------------
    * Function:    create_log
    * Returns:     doesn't return
    * Description: Creates the Log window
    *------------------------------------------------------------------*/
   function create_log ()
   {
     local log_win;
     
     wfile = PhabReadWidgetFile(anyos_assign("log_widgetfile"));
     window = PhabCreateWidgets(wfile, nil, nil);
     log_win = PhabLookupWidget(window, #Ptlog, nil);
     text = PhabLookupWidget(window, #Pttext, nil);
     logbut = PhabLookupWidget(window, #PtButtonLogto, nil);
     filebut = PhabLookupWidget(window, #PtToggleFile, nil);
     stdoutbut = PhabLookupWidget(window, #PtToggleStdout, nil);
     anybut = PhabLookupWidget(window, #PtToggleAny, nil);
     fillbut = PhabLookupWidget(window, #PtToggleFill, nil);
     allbut = PhabLookupWidget(window, #PtToggleAll, nil);
     insertbut = PhabLookupWidget(window, #PtButtonInsertText, nil);
     sendbut = PhabLookupWidget(window, #PtButtonSendCmd, nil);
     xbut = PhabLookupWidget(window, #PtButtonExit, nil);
     inserttxt = PhabLookupWidget(window, #PtTextInsert, nil);
     cmdtxt = PhabLookupWidget(window, #PtTextCmd, nil);
   
     anygui_show_text(text, string("To start the demo, ensure the PID Emulator\n", 
                                   "is running, then press the Log to: button\n\n",
                                   read_msg("5.11")), 1);
   
     attach_msg(log_win, "5", "1");
     attach_msg(anybut, "5.1", "5");
     attach_msg(fillbut, "5.2", "5");
     attach_msg(allbut, "5.3", "5");
     attach_msg(insertbut, "5.4", "5");
     attach_msg(sendbut, "5.5", "5");
     attach_msg(logbut, "5.6", "5");
     attach_msg(filebut, "5.7", "5");
     attach_msg(stdoutbut, "5.8", "5");
   
     PtAttachCallback(logbut, Pt_CB_ACTIVATE,
                      `start_logging(@logbut, @text, @filebut, @stdoutbut,
                                    @anybut, @fillbut, @allbut));
   
     PtAttachCallback(insertbut, Pt_CB_ACTIVATE,
                      `send_command(@inserttxt, "send-text", nil));
     PtAttachCallback(sendbut, Pt_CB_ACTIVATE,
                      `send_command(@cmdtxt, "send-cmd", nil));
     PtAttachCallback(filebut, Pt_CB_ACTIVATE,
                      `send_command(@filebut, "file-stdout", "tldemoboth"));
     PtAttachCallback(stdoutbut, Pt_CB_ACTIVATE,
                      `send_command(@stdoutbut, "file-stdout", "tldemostdout"));
     PtAttachCallback(anybut, Pt_CB_ACTIVATE,
                      `send_command(@anybut, "collect", "any"));
     PtAttachCallback(allbut, Pt_CB_ACTIVATE,
                      `send_command(@allbut, "collect", "all"));
     PtAttachCallback(fillbut, Pt_CB_ACTIVATE,
                      `send_command(@fillbut, "collect", "fill"));
     PtAttachCallback(xbut, Pt_CB_ACTIVATE, #exit_program(-1));
   
     atexit(#stop_processes());
     
     log_win.SetPos(360, 200);
     
     PtRealizeWidget(log_win);
     send_message("nsnames");
     
     PtMainLoop();
   }