Returns the position of the byte beginning the first occurrence of one string within another string.

Syntax

InStrB ( [ begin , ] string1 , string2 )

Elements

begin

Optional. A numeric expression with a positive integer value, begin specifies the character position in string1 where InstrB should begin searching for string2. If you omit begin, it defaults to 1.

The string to be searched.

The string for which InStrB searches.

InStrB returns the byte position of the first occurrence of string2 in string1. The following table shows how the function responds to various conditions.

Condition	Return value
string1 is " " (the empty string)	0
string2 is not found after begin in string1	0
begin is larger than the length of string1	0
string2 is "" (the empty string)	The value of begin. (If you omit begin, InStrB returns the value 1.)
string1 is NULL	NULL
string2 is NULL	NULL
begin is NULL	Error

Usage

If you want to work with characters, use the InStr function.

Note The byte position returned by InStrB is independent of the platform-specific byte order.

Example
See Also

LotusScript Language Reference: I through L
InStr function
InStrBP function
InStrC function
Option Compare statement
StrCompare function

Glossary