found this at odl.sysworks.biz/disk$axpdocdec971/progtool/d37aaa48.p341.bkb#2110 :
Example 12-8: C Include File " cobfunc "
    void cobcancel ( /* CANCEL the named COBOL routine */
                char *name
                );
    int cobcall ( /* Call a COBOL program from a C routine */
                char *name, /* READ: name of the program */
                int argc, /* READ: how many arguments */
                char **argv /* READ: array of pointers to the arguments */
                );
    int cobfunc ( /* Call a COBOL program from a C routine, then CANCEL it */
                char *name, /* name of the program */
                int argc, /* how many arguments */
                char **argv /* array of pointers to the arguments */
                );
    #ifdef __osf__
    void cob_init ( /* init the RTL */
                int argc, /* argument count */
                char **argv, /* arguments */
                char **envp /* environment variable pointers */
                );
    #endif
--Mike
On Sep 12, 2012, at 1:54 PM, Sampsa Laine <sampsa at mac.com> wrote:
Does anybody happen to have a nice sample bit of code on how to call a C function from DEC
COBOL?
The documentation gave me this code:
/* crtn - c function to test use of argc and argv in c routines
 *   called from HP COBOL  */
#include "cobfunc.h"
#include <stdio.h>
extern int _ _Argc;
extern char **_ _Argv[];
#define argc _ _Argc
#define argv (*_ _Argv)
void crtn()
{
 int i;
 i = 0;
 for (i = 0; i < argc; i++) {
  printf("argv[%d] = %s\n", i, argv[i]);
 }
}
But I can't find cobfunc.h anywhere   
Sampsa
On 12 Sep 2012, at 20:18, Sampsa Laine wrote:
Well this whole COBOL thing is verging on the humour value anyway, I think I might leave
that til later :)
Sampsa
On 12 Sep 2012, at 20:13, Jordi Guillaumes i Pons wrote:
IIRC there was no screen section support in VAX COBOL. 
Perhaps this can be a good excuse to learn the SMG$ RTL routines...
Jordi Guillaumes i Pons
Barcelona - Catalunya - Europa
El 12/09/2012, a les 17:10, Sampsa Laine <sampsa at mac.com> va escriure:
Tried to compile my little program on GORVAX but it has problems with the SCREEN SECTION
that works on the AXP version..
I'm thinking I must have an old compiler or something. Anyone know what the latest is?
Anyone have a kit?
Sampsa
Michael Young
young at 
ecn.purdue.edu