typedef struct DIALOG
{
   DIALOG_PROC proc;
   int x, y, w, h;               /* position and size of the object */
   int fg, bg;                   /* foreground and background colors */
   int key;                      /* keyboard shortcut (ASCII code) */
   int flags;                    /* flags about the object state */
   int d1, d2;                   /* any data the object might require */
   void *dp, *dp2, *dp3;         /* pointers to more object data */
} DIALOG;

typedef struct
{
   int option_value;
} OPTION_ELEMENT;

static DIALOG options_dialog[] =
{
   /* (proc)              (x)  (y)  (w)  (h)  (fg)      (bg)           (key) (flags) (d1) (d2) (dp)                       (dp2) (dp3)                               */
   { d_shadow_box_proc,   0,   0,   231, 440, 0,         C_LIGHT_GRAY,  0,    0,      0,   0,   NULL,                      NULL, NULL                                },
   { d_shadow_box_proc,   0,   0,   231, 24,  0,         C_DARK_GRAY,   0,    0,      0,   0,   NULL,                      NULL, NULL                                },
   { caption_proc,        115, 2,   113, 19,  C_WHITE,   C_TRANSP,      0,    0,      0,   0,   "Program Options",         NULL, NULL                                },
   { d_text_proc,         16,  32,  200, 16,  C_BLACK,   C_TRANSP,      0,    0,      0,   0,   "System Of Measurements:", NULL, NULL                                },
   { option_element_proc, 48,  56,  80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      0,   0,   "Metric",                  NULL, &(OPTION_ELEMENT){METRIC}           },
   { option_element_proc, 48,  72,  88,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      0,   0,   "US",                      NULL, &(OPTION_ELEMENT){IMPERIAL}         },
   { d_text_proc,         16,  96,  152, 16,  C_BLACK,   C_TRANSP,      0,    0,      0,   0,   "COM Port:",               NULL, NULL                                },
   { option_element_proc, 48,  120, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM1",                    NULL, &(OPTION_ELEMENT){COM1}             },
   { option_element_proc, 48,  136, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM2",                    NULL, &(OPTION_ELEMENT){COM2}             },
   { option_element_proc, 48,  152, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM3",                    NULL, &(OPTION_ELEMENT){COM3}             },
   { option_element_proc, 48,  168, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM4",                    NULL, &(OPTION_ELEMENT){COM4}             },
   { option_element_proc, 48,  184, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM5",                    NULL, &(OPTION_ELEMENT){COM5}             },
   { option_element_proc, 48,  200, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM6",                    NULL, &(OPTION_ELEMENT){COM6}             },
   { option_element_proc, 48,  216, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM7",                    NULL, &(OPTION_ELEMENT){COM7}             },
   { option_element_proc, 48,  232, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      1,   0,   "COM8",                    NULL, &(OPTION_ELEMENT){COM8}             },
   { d_text_proc,         16,  256, 200, 16,  C_BLACK,   C_TRANSP,      0,    0,      0,   0,   "Baud Rate:",              NULL, NULL                                },
   { option_element_proc, 48,  280, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      2,   0,   "9600",                    NULL, &(OPTION_ELEMENT){BAUD_RATE_9600}   },
   { option_element_proc, 48,  296, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      2,   0,   "38400",                   NULL, &(OPTION_ELEMENT){BAUD_RATE_38400}  },
   { d_text_proc,         16,  320, 200, 16,  C_BLACK,   C_TRANSP,      0,    0,      0,   0,   "Display Mode:",           NULL, NULL                                },
   { option_element_proc, 48,  344, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      3,   0,   "Windowed",                NULL, &(OPTION_ELEMENT){WINDOWED_MODE}    },
   { option_element_proc, 48,  360, 80,  10,  C_BLACK,   C_LIGHT_GRAY,  0,    0,      3,   0,   "Full Screen",             NULL, &(OPTION_ELEMENT){FULL_SCREEN_MODE} },
   { save_options_proc,   16,  384, 92,  40,  C_BLACK,   C_GREEN,       's',  D_EXIT, 0,   0,   "&Save",                   NULL, NULL                                },
   { d_button_proc,       123, 384, 92,  40,  C_BLACK,   C_DARK_YELLOW, 'c',  D_EXIT, 0,   0,   "&Cancel",                 NULL, NULL                                },
   { NULL,                0,   0,   0,   0,   0,       0,               0,    0,      0,   0,   NULL,                      NULL, NULL                                }
};

&(OPTION_ELEMENT){METRIC}  //and
&(OPTION_ELEMENT){COM6}