/* Note:  * This is just a sample piece of code that shows how to use some structs - * it may not even run. */#include <geos.h>void sysopvfunc (void);void opvecfunc (void);void usrfunc (void);static const dlgBoxStr myDialog = {	DB_SETPOS (1, 0,150,0,319),	DB_TXTSTR (10,20,"test"),	DB_VARSTR (10,20,&r0L),	DB_GETSTR (10,20,&r0L,9),	DB_SYSOPV (sysopvfunc),	DB_GRPHSTR (&r0L),	DB_GETFILES (10,10),	DB_OPVEC (opvecfunc),	DB_USRICON (0,0,&r0L),	DB_USRROUT (usrfunc),	DB_ICON (OK, DBI_X_0, DBI_Y_0 ),	DB_ICON (CANCEL, DBI_X_1, DBI_Y_1),	DB_END	};void main (void){    DoDlgBox (&myDialog);    }