Embedded SQL in 'C'

Does anyone know how to open a cursor for 'C" ..?

I have checked the previous postings but cannot locate the proper syntax
here is a snipit :

void ShowTable_type(){
EXEC SQL BEGIN DECLARE SECTION;
char *Atid; // variables to retrieve the table info
char *Adesc;
EXEC SQL END DECLARE SECTION;
EXEC SQL CONNECT 'nathan';
EXEC SQL DECLARE lets_get_tid CURSOR FOR
SELECT type.tid;
printf("Choose the TID to delete\n\n<TID> \n");
do{
EXEC SQL OPEN lets_get_tid;

EXEC SQL FETCH lets_get_tid INTO //line 255
:Atid;

printf("%s",Atid);
}while(SQLCODE != SQLEND);
EXEC SQL CLOSE lets_get_tid;
}

What am I doing wrong ..? here what happens when I rund ecpg :

ecpg 4sql.c -o 4comp.c
4sql.c:124: parse error
make: *** [sql] Error 255

Please if anyone has any ideas please let me know.

Thank you

Nathan