#: 14724 S3/Languages
    30-Mar-92  10:15:10
Sb: #getkey problem in C
Fm: Robert A. Hengstebeck 76417,2751
To: all

 
 
 
Can someone help this poor frustrated fellow.  I've been trying to get
a value returned from my getkey function to my main function, and I
have tried many ideas starting with using a 'return()' in the getkey.
I am getting the correct value from the 'printf' statement within the
getkey function, but when I print the value from the main function, I
consistently get some number like 19802 for both 'j' and 'vlu'.  So
it seems that nothing is getting back up, unless the new value is a
pointer to the returned value - just a wild guess.  The following
is a listing of what I have ended up after many trials.  What do
you suggest?
 
   ** program name 'hello/c' **
 
  #include 
  #option INLIB
  int j, vlu;
    main()
    {
     int i;
     int getkey();
     void clearsc();
     void gotoxy();
         clearsc();
         printf("Enter a key when you are ready\n\n");
         getkey(vlu);
         j = vlu;
         printf("vlu answer is %d,  j answer is %d \n\n",vlu,j);
    /*    for(i = 0; i < j; i++)
           {
             gotoxy(i*2,i);
             printf("This is my first program\n");
           }                                             */
    }
    void clearsc()
    {
         fputs("\x1c\x1f",stdout);
    }
    void gotoxy(col,row)
    int col,row;
    {
        cursor(col,row);
    }
    int getkey(vlu)
    {
        while (TRUE)
        {
            vlu = inkey();
            if (vlu != 0)
                break;
        }
        printf(" the answer here is %d \n\n", vlu);
    }
 
    This program is being programmed on a Model IV computer, so if
    there are any peculiarities, I have tried to avoid them.  If I
    seem to be making some silly code, please forgive me, since its
    been three years since I last wrote in C.
 
 
 

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