This example uses WinNextChar to traverse a string until a specified character is found, while maintaining an index to point to the character's position.

#define INCL_WINCOUNTRY /* Window Country Functions             */
#include <os2.h>

HAB    hab;             /* Anchor-block handle                  */
ULONG  idCodepage=437;  /* Code page identity of both strings   */
ULONG  idCountryCode=1; /* Country code                         */
char   pszString1[10];  /* First string                         */
char  *pszNextChar;     /* Next character                       */
char  *pszCurrentChar;  /* Current character                    */
ULONG  ulIndex;         /* Array index                          */

/* Set initial values */
strcpy(pszString1,"Compare");
pszCurrentChar = pszString1;

ulIndex = 0;
do
{
  pszNextChar = WinNextChar(habMain, 437, 0, pszCurrentChar);

  /* The next line is necessary to get the next char */
  pszCurrentChar = pszNextChar;

  /* Set emergency escape route, just in case */
  ulIndex = ulIndex + 1;
  if (ulIndex >10)
     break;
} while (*pszNextChar != (char)NULL);