unsigned char touches[5] = {0};
void choisirTouche()
{
unsigned char nom[50][10]={"0","1","2","3","4","5","6","7","8","9","ab/c","EXP","(-)","+","-","*","/","frac","?","?",",","->","log","ln","sin","cos","tan","^2","^","EXE","DEL",
"AC","F=D","exit","shift","alpha","optn","vars","haut","bas",
"gauche","droite","F1","F2","F3","F4","F5","F6","menu","x,t"};

unsigned char defini[50]={ K_0,K_1,K_2,K_3 , K_4 , K_5 ,K_6 , K_7 , K_8 , K_9 , K_DP , K_EXP , K_PMINUS, K_PLUS ,
K_MINUS , K_MULT , K_DIV , K_FRAC , K_LPAR , K_RPAR , K_COMMA , K_STORE , K_LOG ,
K_LN , K_SIN , K_COS , K_TAN , K_SQUARE , K_POW , K_EXE , K_DEL , K_AC ,
K_FD , K_EXIT,  K_SHIFT,  K_ALPHA , K_OPTN , K_VARS , K_UP , K_DOWN,  K_LEFT ,
K_RIGHT , K_F1 , K_F2 , K_F3 , K_F4 , K_F5 , K_F6 ,K_MENU,76};
int a,i;

for(i = 0;i<5;)
    {
    for(a = 0;a<50;a++){if(key_down(defini[a])){touches[i]=a;while(key_down(defini[a]));i++;}}
    for(a = 0;a<i;a++)
        {
        PrintMini(0,a*8,"touche numero   :",1);
        PrintV(60,a*8,a);
        PrintMini(88,a*8,nom[touches[a]],1);
        }
    ML_display_vram();
    ML_clear_vram();
    }
for(i = 0;i<5;)touches[i] = defini[touches[i]];
}