CharPrevExA function (winuser.h)
Retrieves the pointer to the preceding character in a string. This function can handle strings consisting of either single- or multi-byte characters.
Syntax
LPSTR CharPrevExA(
[in] WORD CodePage,
[in] LPCSTR lpStart,
[in] LPCSTR lpCurrentChar,
[in] DWORD dwFlags
);
Parameters
[in] CodePage
Type: WORD
The identifier of the code page to use to check lead-byte ranges. Can be one of the code-page values provided in Code Page Identifiers, or one of the following predefined values.
| Value | Meaning |
|---|---|
|
Use system default ANSI code page. |
|
Use the system default Macintosh code page. |
|
Use system default OEM code page. |
[in] lpStart
Type: LPCSTR
The beginning of the string.
[in] lpCurrentChar
Type: LPCSTR
A character in a null-terminated string.
[in] dwFlags
Type: DWORD
This parameter is reserved and must be zero.
Return value
Type: LPSTR
The return value is a pointer to the preceding character in the string, or to the first character in the string if the lpCurrentChar parameter equals the lpStart parameter.
Remarks
CharPrevExA specifies a code-page to use, whereas CharPrev (if called as an ANSI function) uses the system default code-page.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | winuser.h (include Windows.h) |
| Library | User32.lib |
| DLL | User32.dll |
See also
Conceptual
Reference