DIALOG (3alleg4)

#include <allegro.h>

typedef struct DIALOG

   int (*proc)(int, DIALOG *, int); - dialog procedure
                                      (message handler)
   int x, y, w, h;       - position and size of the object
   int fg, bg;           - foreground and background colors
   int key;              - ASCII keyboard shortcut
   int flags;            - flags about the status of the object
   int d1, d2;           - whatever you want to use them for
   void *dp, *dp2, *dp3; - pointers to more object-specific data

This is the structure which contains a GUI object. Read chapter "GUI routines" for a description on how to obtain/use this structure.

do_dialog(3alleg4), excustom(3alleg4), exgui(3alleg4), exrgbhsv(3alleg4)