typedef struct params_userdef {
object *pb_tree; // pointeur sur le 1er objet de l'arbre
unsigned short pb_objc; // index de l'objet concerné
unsigned short pb_prevstate; // ancien ob_state de l'objet a dessiné
unsigned short pb_currstate; // nouvel ob_state de l'objet a dessiné
unsigned short pb_x; // coordonn‚e ‚cran en X...
unsigned short pb_y; // ...Y...
unsigned short pb_w; // ...largeur...
unsigned short pb_h; // ...et hauteur
unsigned short pb_xc; // Rectangle...
unsigned short pb_yc; // ...utilisé...
unsigned short pb_wc; // ...pour le...
unsigned short pb_hc; // ...clipping
} params_block;