FSH PREVCHAR

This function provides the mechanism for decrementing a character point, taking into account DBCS considerations.

Syntax
FSH_PREVCHAR(pBeg, ppStr)

Parameters

 * pBeg: is a pointer to the beginning of a string.
 * ppStr: is a pointer to the character pointer of a string.
 * The value is decremented appropriately upon return. If it is at the beginning of a string, the pointer is not decremented. If it points to the second byte of a DBCS character, it will be decremented to point to the first byte of the character.

Returns
There are no error returns.

Calling Sequence
 void far pascal FSH_PREVCHAR(pBeg, ppStr)

char far * pBeg; char far * far * ppStr; 

Remarks
The FSD is responsible for verifying the string pointer and checking for segment boundaries.


 * Note: OS/2 does not validate input parameters. An FSD, therefore, should call FSH_PROBEBUF where appropriate.