Subversion Repositories Games.Chess Giants

// dialog_options.cpp

#include "../common.h"

// dialog template

#define THIS_DIALOG DIALOG_OPTIONS

// global variables used in this module only

static void *tab_control;

static wchar_t server_string[MAX_PATH];

static COLORREF custom_colors[16];

static CHOOSECOLOR cc;

static unsigned long selectedcolor_clock;

static unsigned long selectedcolor_history;

// prototypes of local functions

static void StartThread_ThisDialog (void *thread_parms);

static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam);

static void StartThread_DialogBoxLoad (void *thread_parms);

void DialogBox_Options (void)

{

   // helper function to fire up the modeless dialog box

   _beginthread (StartThread_ThisDialog, 0, NULL); // fire up a new one

   return; // return as soon as the thread is fired up

}

void DialogBox_Options_Validated (void)

{

   // callback function called by the main game thread when the dialog box is validated

   // remember this callback is no longer to be called

   is_dialogbox_options_validated = false;

   return; // finished

}

static void StartThread_ThisDialog (void *thread_parms)

{

   // this function runs in a separate thread, for that's the only way (seemingly)

   // to implement a non-modal message box using the Common Controls library.

   // display the dialog box

   if (DialogBox (hAppInstance, MAKEINTRESOURCE (THIS_DIALOG), hMainWnd, DialogProc_ThisDialog) == 1)

      is_dialogbox_options_validated = true;

   TabControl_Destroy (tab_control);

   return; // _endthread() implied

}

static int CALLBACK DialogProc_ThisDialog (HWND hWnd, unsigned int message, WPARAM wParam, LPARAM lParam)

{

   // message handler for the dialog box

   static wchar_t temp_string[MAX_PATH];

   static wchar_t value_string[32];

   unsigned short wParam_hiword;

   unsigned short wParam_loword;

   wchar_t *port_string;

   int language_index;

   int engine_index;

   int is_checked;

   // filter out the commonly used message values

   wParam_hiword = HIWORD (wParam);

   wParam_loword = LOWORD (wParam);

   // have we just fired up this window ?

   if (message == WM_INITDIALOG)

   {

      // center the window

      CenterWindow (hWnd, hMainWnd);

      // set dialog icons (small one for title bar & big one for task manager)

      SendMessage (hWnd, WM_SETICON, ICON_SMALL, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));

      SendMessage (hWnd, WM_SETICON, ICON_BIG, (LPARAM) LoadIcon (hAppInstance, MAKEINTRESOURCE (ICON_MAIN)));

      // set window title and control texts

      SetWindowText (hWnd, LOCALIZE (L"Options_Title"));

      SetWindowText (GetDlgItem (hWnd, BUTTON_OK), LOCALIZE (L"Button_OK"));

      SetWindowText (GetDlgItem (hWnd, BUTTON_CANCEL), LOCALIZE (L"Button_Cancel"));

      // create the tab control and populate it

      tab_control = TabControl_New (GetDlgItem (hWnd, TABBOX_OPTIONS), (WNDPROC) DialogProc_ThisDialog);

      TabControl_AddPage (tab_control, LOCALIZE (L"Options_OfflineGameParameters"), DIALOG_OPTIONS_ENGINE);

      TabControl_AddPage (tab_control, LOCALIZE (L"Options_OnlineGameParameters"), DIALOG_OPTIONS_INTERNET);

      TabControl_AddPage (tab_control, LOCALIZE (L"Options_DisplayParameters"), DIALOG_OPTIONS_DISPLAY);

      TabControl_AddPage (tab_control, LOCALIZE (L"Options_GameplayParameters"), DIALOG_OPTIONS_GAMEPLAY);

      // setup page 1 (computer play)

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINEPROGRAMNAME), LOCALIZE (L"Options_EngineProgramName"));

      for (engine_index = 0; engine_index < options.engine.program_count; engine_index++)

         ComboBox_AddString (TabControl_GetItem (tab_control, COMBOBOX_ENGINE), options.engine.programs[engine_index].name); // add all engine programs to the combo box

      ComboBox_SetCurSel (TabControl_GetItem (tab_control, COMBOBOX_ENGINE), options.engine.selected_program); // select the right entry

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINESEARCHDEPTH), LOCALIZE (L"Options_EnginePredictionLevel"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_EASY), LOCALIZE (L"Options_Easy"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_HARD), LOCALIZE (L"Options_Hard"));

      swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d", options.engine.depth);

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINESEARCHDEPTHVALUE), value_string);

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINEBLUNDERS), LOCALIZE (L"Options_AllowEngineBlunders"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_1PCCHANCE), LOCALIZE (L"Options_1PercentChance"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_100PCCHANCE), LOCALIZE (L"Options_100PercentChance"));

      if (options.engine.blunder_chances > 0)

         swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d %%", options.engine.blunder_chances);

      else

         value_string[0] = 0;

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINEBLUNDERSVALUE), value_string);

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINERESIGNS), LOCALIZE (L"Options_AllowEngineResigns"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_YIELDING), LOCALIZE (L"Options_Yielding"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OBSTINATE), LOCALIZE (L"Options_Obstinate"));

      if (options.engine.obstinacy_level != -1)

         swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d", 1 + options.engine.obstinacy_level);

      else

         value_string[0] = 0;

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINERESIGNVALUE), value_string);

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_EXPERTSETTINGS), LOCALIZE (L"Options_ExpertSettingsHelpText"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_IAMANEXPERT), LOCALIZE (L"Options_IAmAnExpert"));

      SetWindowText (TabControl_GetItem (tab_control, BUTTON_EXPERTSETTINGS), LOCALIZE (L"Options_ExpertSettings"));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINEBLUNDERS), (options.engine.blunder_chances > 0 ? BST_CHECKED : BST_UNCHECKED));

      EnableWindow (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), (options.engine.blunder_chances > 0));

      EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_1PCCHANCE), (options.engine.blunder_chances > 0));

      EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_100PCCHANCE), (options.engine.blunder_chances > 0));

      EnableWindow (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), (options.engine.blunder_chances > 0));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINERESIGNS), (options.engine.obstinacy_level >= 0 ? BST_CHECKED : BST_UNCHECKED));

      EnableWindow (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), (options.engine.obstinacy_level >= 0));

      EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_YIELDING), (options.engine.obstinacy_level >= 0));

      EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_OBSTINATE), (options.engine.obstinacy_level >= 0));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_IAMANEXPERT), (options.engine.is_expert_mode ? BST_CHECKED : BST_UNCHECKED));

      EnableWindow (TabControl_GetItem (tab_control, BUTTON_EXPERTSETTINGS), options.engine.is_expert_mode);

      SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_DIFFICULTYLEVEL), TBM_SETRANGE, true, MAKELONG (1, options.engine.max_depth * (options.engine.is_expert_mode ? 3 : 1)));

      SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_DIFFICULTYLEVEL), TBM_SETPOS, true, options.engine.depth);

      SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), TBM_SETRANGE, true, MAKELONG (1, 100));

      SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), TBM_SETPOS, true, (options.engine.blunder_chances > 0 ? options.engine.blunder_chances : 1));

      SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), TBM_SETRANGE, true, MAKELONG (0, 9));

      SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), TBM_SETPOS, true, (options.engine.obstinacy_level >= 0 ? options.engine.obstinacy_level : 9));

      // setup page 2 (Internet play)

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_SERVERADDRESS), LOCALIZE (L"Options_ServerAddress"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_SERVERLOGIN), LOCALIZE (L"Options_ServerLogin"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_SERVERPASSWORD), LOCALIZE (L"Options_ServerPassword"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWSERVERMESSAGES), LOCALIZE (L"Options_ShowServerMessages"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWPUBLICCHAT), LOCALIZE (L"Options_ShowPublicChat"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_SERVERURL), LOCALIZE (L"Options_CreateAccount"));

      ConvertStaticToHyperlink (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_SERVERURL));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_SERVERWARNING), LOCALIZE (L"Options_ServerWarning"));

      swprintf_s (server_string, WCHAR_SIZEOF (server_string), L"%s:%d", options.network.server_address, options.network.server_port);

      SetWindowText (TabControl_GetItem (tab_control, EDITBOX_SERVERADDRESS), server_string);

      EnableWindow (TabControl_GetItem (tab_control, EDITBOX_SERVERADDRESS), false); // FIXME: as long as we don't support ICC, don't allow users to change server address

      SetWindowText (TabControl_GetItem (tab_control, EDITBOX_LOGIN), options.network.login);

      SetWindowText (TabControl_GetItem (tab_control, EDITBOX_PASSWORD), options.network.password);

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWPUBLICCHAT), (options.network.want_publicchat ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWSERVERMESSAGES), (options.network.want_servermessages ? BST_CHECKED : BST_UNCHECKED));

      // setup page 3 (display)

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_LANGUAGE), LOCALIZE (L"Options_Language"));

      for (language_index = 0; language_index < language_count; language_index++)

         ComboBox_AddString (TabControl_GetItem (tab_control, COMBOBOX_LANGUAGE), languages[language_index].name); // add it to the combo box

      ComboBox_SetCurSel (TabControl_GetItem (tab_control, COMBOBOX_LANGUAGE), language_id); // select the right entry

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_FULLSCREEN), LOCALIZE (L"Options_Fullscreen"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_TEXTUREFILTERING), LOCALIZE (L"Options_TextureFiltering"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_HIGHQUALITYFILTERING), LOCALIZE (L"Options_HiQualityFiltering"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SPECULARLIGHTING), LOCALIZE (L"Options_SpecularLighting"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWREFLECTIONS), LOCALIZE (L"Options_ShowReflections"));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_FULLSCREEN), (options.want_fullscreen ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_TEXTUREFILTERING), (options.want_filtering ? BST_CHECKED : BST_UNCHECKED));

      EnableWindow (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_HIGHQUALITYFILTERING), options.want_filtering);

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_HIGHQUALITYFILTERING), (options.want_hiquality ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SPECULARLIGHTING), (options.want_specularlighting ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWREFLECTIONS), (options.want_reflections ? BST_CHECKED : BST_UNCHECKED));

      // setup page 4 (gameplay)

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWLASTMOVE), LOCALIZE (L"Options_ShowLastMove"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWPOSSIBLEMOVES), LOCALIZE (L"Options_ShowPossibleMoves"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTHREATS), LOCALIZE (L"Options_ShowThreats"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWANIMATIONS), LOCALIZE (L"Options_ShowAnimations"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTAKENPARTS), LOCALIZE (L"Options_ShowTakenParts"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTURN), LOCALIZE (L"Options_ShowTurn"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWCLOCK), LOCALIZE (L"Options_ShowClock"));

      SetWindowText (TabControl_GetItem (tab_control, BUTTON_COLORCLOCK), LOCALIZE (L"Button_Color"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWHISTORY), LOCALIZE (L"Options_ShowHistory"));

      SetWindowText (TabControl_GetItem (tab_control, BUTTON_COLORHISTORY), LOCALIZE (L"Button_Color"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_USESEPIAFORHISTORY), LOCALIZE (L"Options_UseSepiaForHistory"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ROTATEBOARD), LOCALIZE (L"Options_RotateBoard"));

      SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_ROTATESPEED), LOCALIZE (L"Options_RotateSpeed"));

      SetWindowText (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_PLAYSOUNDS), LOCALIZE (L"Options_PlaySounds"));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWLASTMOVE), (options.want_lastmove ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWPOSSIBLEMOVES), (options.want_possiblemoves ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTHREATS), (options.want_threats ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWANIMATIONS), (options.want_animations ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTAKENPARTS), (options.want_takenparts ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTURN), (options.want_turn ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWCLOCK), (options.want_clock ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWHISTORY), (options.want_history ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_USESEPIAFORHISTORY), (options.want_sepiafilter ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ROTATEBOARD), (options.want_autorotateon1vs1 ? BST_CHECKED : BST_UNCHECKED));

      Button_SetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_PLAYSOUNDS), (options.want_sounds ? BST_CHECKED : BST_UNCHECKED));

      SendMessage (TabControl_GetItem (tab_control, SLIDER_OPTIONS_ROTATESPEED), TBM_SETRANGE, true, MAKELONG (5, 80));

      SendMessage (TabControl_GetItem (tab_control, SLIDER_OPTIONS_ROTATESPEED), TBM_SETPOS, true, options.rotate_speed);

      // set the selected color to the current game clock color (convert from RGBA to GDI BGR)

      selectedcolor_clock = ((options.clock_color & 0x0000ff00) << 8)

                            | ((options.clock_color & 0x00ff0000) >> 8)

                            | ((options.clock_color & 0xff000000) >> 24);

      // set the selected color to the current game history color (convert from RGBA to GDI BGR)

      selectedcolor_history = ((options.history_color & 0x0000ff00) << 8)

                              | ((options.history_color & 0x00ff0000) >> 8)

                              | ((options.history_color & 0xff000000) >> 24);

      // set focus on the first settable item

      SendMessage (TabControl_GetItem (tab_control, EDITBOX_LOGIN), EM_SETSEL, 0, -1); // select all text

      SetFocus (TabControl_GetItem (tab_control, EDITBOX_LOGIN));

   }

   // else did we click the close button on the title bar ?

   else if (message == WM_CLOSE)

      EndDialog (hWnd, 0); // close the dialog box

   // else did we take action on one of the controls ?

   else if (message == WM_COMMAND)

   {

      // did we cancel the dialog box ? (IDCANCEL is a system-wide dialog box handler value, that catches the ESC key)

      if (wParam_loword == IDCANCEL)

         EndDialog (hWnd, 0); // close the dialog box

      // else was it the OK button ?

      else if (wParam_loword == BUTTON_OK)

      {

         // grab the new parameters and close the dialog box

         // set the server address, login and password

         GetWindowText (TabControl_GetItem (tab_control, EDITBOX_SERVERADDRESS), server_string, WCHAR_SIZEOF (server_string));

         options.network.server_address[0] = 0; // default values

         options.network.server_port = 0;

         port_string = wcschr (server_string, L':'); // find the address:port separator

         if (port_string != NULL)

         {

            port_string[0] = 0; // split the string

            options.network.server_port = _wtoi (&port_string[1]); // and read the port

         }

         wcscpy_s (options.network.server_address, WCHAR_SIZEOF (options.network.server_address), server_string); // now read the address

         GetWindowText (TabControl_GetItem (tab_control, EDITBOX_LOGIN), options.network.login, WCHAR_SIZEOF (options.network.login));

         GetWindowText (TabControl_GetItem (tab_control, EDITBOX_PASSWORD), options.network.password, WCHAR_SIZEOF (options.network.password));

         // display

         language_id = ComboBox_GetCurSel (TabControl_GetItem (tab_control, COMBOBOX_LANGUAGE));

         CreateOrUpdateApplicationMenu (); // on language change, update the application menu

         options.want_fullscreen = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_FULLSCREEN)) != 0);

         options.want_filtering = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_TEXTUREFILTERING)) != 0);

         options.want_specularlighting = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SPECULARLIGHTING)) != 0);

         options.want_reflections = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWREFLECTIONS)) != 0);

         // gameplay

         options.network.want_servermessages = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWSERVERMESSAGES)) != 0);

         options.network.want_publicchat = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWPUBLICCHAT)) != 0);

         options.want_lastmove = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWLASTMOVE)) != 0);

         options.want_possiblemoves = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWPOSSIBLEMOVES)) != 0);

         options.want_threats = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTHREATS)) != 0);

         options.want_animations = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWANIMATIONS)) != 0);

         options.want_takenparts = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTAKENPARTS)) != 0);

         options.want_turn = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWTURN)) != 0);

         options.want_clock = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWCLOCK)) != 0);

         options.clock_color = 0 | ((selectedcolor_clock & 0x000000ff) << 24)

                                 | ((selectedcolor_clock & 0x0000ff00) << 8)

                                 | ((selectedcolor_clock & 0x00ff0000) >> 8); // convert from GDI BGR to RGBA

         options.want_history = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWHISTORY)) != 0);

         options.history_color = 0 | ((selectedcolor_history & 0x000000ff) << 24)

                                   | ((selectedcolor_history & 0x0000ff00) << 8)

                                   | ((selectedcolor_history & 0x00ff0000) >> 8); // convert from GDI BGR to RGBA

         options.want_sepiafilter = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_USESEPIAFORHISTORY)) != 0);

         options.want_autorotateon1vs1 = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ROTATEBOARD)) != 0);

         options.want_sounds = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_PLAYSOUNDS)) != 0);

         options.rotate_speed = SendMessage (TabControl_GetItem (tab_control, SLIDER_OPTIONS_ROTATESPEED), TBM_GETPOS, 0, 0);

         // engine options

         ComboBox_GetLBText (TabControl_GetItem (tab_control, COMBOBOX_ENGINE), ComboBox_GetCurSel (TabControl_GetItem (tab_control, COMBOBOX_ENGINE)), temp_string);

         for (engine_index = 0; engine_index < options.engine.program_count; engine_index++)

            if (_wcsicmp (temp_string, options.engine.programs[engine_index].name) == 0)

            {

               options.engine.selected_program = engine_index;

               MessageBox (hWnd, LOCALIZE (L"Options_ChessEngineChangeWillAffectNextGame"), LOCALIZE (L"ImportantMessage"), MB_ICONINFORMATION | MB_OK);

            }

         options.engine.depth = SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_DIFFICULTYLEVEL), TBM_GETPOS, 0, 0);

         if (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINEBLUNDERS)))

            options.engine.blunder_chances = SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), TBM_GETPOS, 0, 0);

         else

            options.engine.blunder_chances = 0;

         if (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINERESIGNS)))

            options.engine.obstinacy_level = SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), TBM_GETPOS, 0, 0);

         else

            options.engine.obstinacy_level = -1;

         EndDialog (hWnd, 0); // close the dialog box

      }

      // else was it the cancel button ?

      else if (wParam_loword == BUTTON_CANCEL)

         EndDialog (hWnd, 0); // close the dialog box

      // else was it the expert settings button ?

      else if (wParam_loword == BUTTON_EXPERTSETTINGS)

      {

         ComboBox_GetLBText (TabControl_GetItem (tab_control, COMBOBOX_ENGINE), ComboBox_GetCurSel (TabControl_GetItem (tab_control, COMBOBOX_ENGINE)), value_string);

         swprintf_s (temp_string, WCHAR_SIZEOF (temp_string), L"%s\\engines\\%s\\init.txt", app_path, value_string);

         ShellExecute (NULL, L"open", temp_string, NULL, NULL, SW_SHOWNORMAL); // open the engine initialization text file

      }

      // else is it the rotate board check box ? if so, enable or disable the speed slider

      else if (wParam_loword == CHECKBOX_OPTIONS_ROTATEBOARD)

      {

         EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_OPTIONS_ROTATESPEED), Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ROTATEBOARD)));

         EnableWindow (TabControl_GetItem (tab_control, SLIDER_OPTIONS_ROTATESPEED), Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ROTATEBOARD)));

      }

      // else is it the I am an expert check box ? if so, enable or disable the expert settings button and adjust the engine level slider

      else if (wParam_loword == CHECKBOX_OPTIONS_IAMANEXPERT)

      {

         options.engine.is_expert_mode = (Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_IAMANEXPERT)) == BST_CHECKED);

         EnableWindow (TabControl_GetItem (tab_control, BUTTON_EXPERTSETTINGS), options.engine.is_expert_mode);

         SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_DIFFICULTYLEVEL), TBM_SETRANGE, true, MAKELONG (1, options.engine.max_depth * (options.engine.is_expert_mode ? 3 : 1)));

      }

      // else is it the allow engine blunders check box ? if so, enable or disable the blunder chance slider

      else if (wParam_loword == CHECKBOX_OPTIONS_ALLOWENGINEBLUNDERS)

      {

         is_checked = Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINEBLUNDERS));

         EnableWindow (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), is_checked);

         EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_1PCCHANCE), is_checked);

         EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_100PCCHANCE), is_checked);

         if (is_checked)

            swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d %%", SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), TBM_GETPOS, 0, 0));

         else

            value_string[0] = 0;

         SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINEBLUNDERSVALUE), value_string);

      }

      // else is it the allow engine resigns check box ? if so, enable or disable the blunder chance slider

      else if (wParam_loword == CHECKBOX_OPTIONS_ALLOWENGINERESIGNS)

      {

         is_checked = Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_ALLOWENGINERESIGNS));

         EnableWindow (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), is_checked);

         EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_YIELDING), is_checked);

         EnableWindow (TabControl_GetItem (tab_control, STATICTEXT_OBSTINATE), is_checked);

         if (is_checked)

            swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d", 1 + SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), TBM_GETPOS, 0, 0));

         else

            value_string[0] = 0;

         SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINERESIGNVALUE), value_string);

      }

      // else is it the enable filtering check box ? if so, enable or disable the high quality checkbox

      else if (wParam_loword == CHECKBOX_OPTIONS_TEXTUREFILTERING)

         EnableWindow (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_HIGHQUALITYFILTERING), Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_TEXTUREFILTERING)));

      // else is it the show game clock check box ? if so, enable or disable the game clock color button

      else if (wParam_loword == CHECKBOX_OPTIONS_SHOWCLOCK)

         EnableWindow (TabControl_GetItem (tab_control, BUTTON_COLORCLOCK), Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWCLOCK)));

      // else is it the game clock color button ?

      else if (wParam_loword == BUTTON_COLORCLOCK)

      {

         // prepare a color pick dialog box

         memset (&cc, 0, sizeof (cc));

         cc.lStructSize = sizeof (cc);

         cc.hwndOwner = hWnd;

         cc.lpCustColors = (unsigned long *) custom_colors;

         cc.rgbResult = selectedcolor_clock;

         cc.Flags = CC_FULLOPEN | CC_RGBINIT;

         // fire it up

         if (ChooseColor (&cc))

            selectedcolor_clock = cc.rgbResult; // save away returned color

      }

      // else is it the show game history check box ? if so, enable or disable the game history color button

      else if (wParam_loword == CHECKBOX_OPTIONS_SHOWHISTORY)

         EnableWindow (TabControl_GetItem (tab_control, BUTTON_COLORHISTORY), Button_GetCheck (TabControl_GetItem (tab_control, CHECKBOX_OPTIONS_SHOWHISTORY)));

      // else is it the game history color button ?

      else if (wParam_loword == BUTTON_COLORHISTORY)

      {

         // prepare a color pick dialog box

         memset (&cc, 0, sizeof (cc));

         cc.lStructSize = sizeof (cc);

         cc.hwndOwner = hWnd;

         cc.lpCustColors = (unsigned long *) custom_colors;

         cc.rgbResult = selectedcolor_history;

         cc.Flags = CC_FULLOPEN | CC_RGBINIT;

         // fire it up

         if (ChooseColor (&cc))

            selectedcolor_history = cc.rgbResult; // save away returned color

      }

      // else is it the create/manage account hyperlink ?

      else if (wParam_loword == STATICTEXT_OPTIONS_SERVERURL)

      {

         swprintf_s (temp_string, WCHAR_SIZEOF (temp_string), ACCOUNTCREATION_URL, languages[language_id].name); // build account creation url

         ShellExecute (NULL, L"open", temp_string, NULL, NULL, SW_MAXIMIZE); // open the accounts page in the default browser, maximized

      }

   }

   // else is it a notification for a slider moving ?

   else if (message == WM_HSCROLL)

   {

      // is it the engine prediction level slider ? if so, update the slider value text

      if ((HWND) lParam == TabControl_GetItem (tab_control, SLIDER_ENGINE_DIFFICULTYLEVEL))

      {

         swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d", SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_DIFFICULTYLEVEL), TBM_GETPOS, 0, 0));

         SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINESEARCHDEPTHVALUE), value_string);

      }

      // else is it the engine blunders slider ? if so, update the slider value text

      else if ((HWND) lParam == TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE))

      {

         swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d %%", SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_BLUNDERCHANCE), TBM_GETPOS, 0, 0));

         SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINEBLUNDERSVALUE), value_string);

      }

      // else is it the engine obstinacy slider ? if so, update the slider value text

      else if ((HWND) lParam == TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY))

      {

         swprintf_s (value_string, WCHAR_SIZEOF (value_string), L"%d", 1 + SendMessage (TabControl_GetItem (tab_control, SLIDER_ENGINE_OBSTINACY), TBM_GETPOS, 0, 0));

         SetWindowText (TabControl_GetItem (tab_control, STATICTEXT_ENGINERESIGNVALUE), value_string);

      }

   }

   // else is it a notification for the tab control ?

   else if ((message == WM_NOTIFY) && (((NMHDR *) lParam)->hwndFrom == GetDlgItem (hWnd, TABBOX_OPTIONS)))

      TabControl_Notify ((NMHDR *) lParam);

   // call the default dialog message processing function to keep things going

   return (false);

}