isgraph-iswgraph-isgraph-l-iswgraph-l.md

description	Learn more about: isgraph, iswgraph, _isgraph_l, _iswgraph_l
title	isgraph, iswgraph, _isgraph_l, _iswgraph_l
ms.date	4/2/2020
api_name	isgraph iswgraph _iswgraph_l _isgraph_l _o_isgraph _o_iswgraph
api_location	msvcrt.dll msvcr80.dll msvcr90.dll msvcr100.dll msvcr100_clr0400.dll msvcr110.dll msvcr110_clr0400.dll msvcr120.dll msvcr120_clr0400.dll ucrtbase.dll api-ms-win-crt-string-l1-1-0.dll
api_type	DLLExport
topic_type	apiref
f1_keywords	_isgraph_l _iswgraph_l Isgraph _istgraph_l _istgraph iswgraph
helpviewer_keywords	isgraph function _istgraph_l function istgraph function _isgraph_l function iswgraph function _iswgraph_l function _istgraph function _ismbcgraph_l function
ms.assetid	531a5f34-4302-4d0a-8a4f-b7ea150ad941

isgraph, iswgraph, _isgraph_l, _iswgraph_l

Determines whether an integer represents a graphical character.

Syntax

int isgraph(
   int c
);
int iswgraph(
   wint_t c
);
int _isgraph_l(
   int c,
   _locale_t locale
);
int _iswgraph_l(
   wint_t c,
   _locale_t locale
);

Parameters

c
Integer to test.

Return value

Each of these routines returns nonzero if c is a particular representation of a printable character other than a space. isgraph returns a nonzero value if c is a printable character other than a space. iswgraph returns a nonzero value if c is a printable wide character other than a wide character space. Each of these routines returns 0 if c doesn't satisfy the test condition.

The versions of these functions that have the _l suffix use the locale that's passed in instead of the current locale for their locale-dependent behavior. For more information, see Locale.

The behavior of isgraph and _isgraph_l is undefined if c isn't EOF or in the range 0 through 0xFF, inclusive. When a debug CRT library is used and c isn't one of these values, the functions raise an assertion.

Generic-text routine mappings

TCHAR.H routine	_UNICODE and _MBCS not defined	_MBCS defined	_UNICODE defined
_istgraph	isgraph	_ismbcgraph	iswgraph
_istgraph_l	_isgraph_l	_ismbcgraph_l	_iswgraph_l

Remarks

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Requirements

Routine	Required header
isgraph	<ctype.h>
iswgraph	<ctype.h> or <wchar.h>
_isgraph_l	<ctype.h>
_iswgraph_l	<ctype.h> or <wchar.h>

For more compatibility information, see Compatibility.

See also

Character classification
Locale
is, isw routines