StrStrPos
- Last UpdatedOct 29, 2026
- 1 minute read
Finds the first occurrence of a character within a string.
|
Function |
Group |
Execution |
String Exp. |
Windows |
Windows Embedded |
IoT View |
Thin Clients |
Mobile Access |
|---|---|---|---|---|---|---|---|---|
|
StrStrPos |
String |
Synchronous |
Yes |
Supported |
Supported |
Supported (see Notes below) |
Supported |
Supported |
Syntax
StrStrPos(strSource, strCharSequence)
strSource
The source string.
strCharSequence
The reference string.
Return value
Returns an integer corresponding to the first occurrence of a character within the source string.
Note: The first character in the string assigned the value 0.
Notes
When this function is used in a project running on IoT View, it supports only single-byte Unicode characters (up to U+007F). Multi-byte Unicode characters are not supported at this time.
Examples
|
Tag Name |
Expression |
|---|---|
|
Tag |
StrStrPos("Studio version 7.0", "i") // Return value = 4 |
|
Tag |
StrStrPos("Technical Reference", "a") // Return value = 7 |