Coding discipline (-4 / 0) :
void            key_2(int keycode, t_list **list, t_basevalue *basevalue);
void            key_3(int keycode, t_list **list, t_basevalue *basevalue);
void            key_4(int keycode, t_list **list, t_basevalue *basevalue);
void            key_5(int keycode, t_list **list, t_basevalue *basevalue);
void            key_6(int keycode, t_list **list, t_basevalue *basevalue);
void            key_7(int keycode, t_list **list, t_basevalue *basevalue);
void            key_8(int keycode, t_list **list, t_basevalue *basevalue);
void            key_9(int keycode, t_list **list, t_basevalue *basevalue);
et, heureusement, un key_hook!

Sinon, y a les pointeurs sur fonctions.

UNE GOD STRUCTURE DE 24 VARIABLES!!!!!!!
Et des variables "a", "m", ...

typedef struct  s_list
{
  int           initx;
  int           inity;
  int           z;
  int           x;
  int           y;
  int           x1;
  int           y1;
  int           x2;
  int           y2;
  int           color;
  void          *init;
  void          *window;
  int           a;
  int           m;
  int           c;
  int           w;
  char          *data;
  int           bpp;
  int           sizeline;
  int           endian;
  void          *image_ptr;
  int           hau;
  int           deg;
  int           fd;
}               t_list;

(et y a pleins d'autres structures chelou "enter", "enter1", "enter2")

ET UNE STRUCTURE TABLEAU!!!
typedef struct  s_enter2
{
  int           nbr;
  int           nbr2;
  int           nbr3;
  int           nbr4;
  int           nbr5;
}               t_enter2;

Sinon, les tableaux c'est bien aussi.