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isgraph, iswgraph, _isgraph_l, _iswgraph_l 

Determine if an integer represents a graphical character.


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.

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 does not satisfy the test condition.

When used with a debug CRT library, isgraph will display a CRT assert if passed a parameter that is not EOF or in the range of 0 through 0xFF. When used with a debug CRT library, isgraph will use the parameter as an index into an array, with undefined results if the parameter is not EOF or in the range of 0 through 0xFF.

The versions of these functions with the _l suffix are identical except that they use the locale passed in instead of the current locale for their locale-dependent behavior.

Generic-Text Routine Mappings
TCHAR.H routine _UNICODE & _MBCS not defined _MBCS defined _UNICODE defined

_istgraph

isgraph

_ismbcgraph

iswgraph

_istgraph_l

_isgraph_l

_ismbcgraph_l

_iswgraph_l

Routine Required header Compatibility

isgraph

<ctype.h>

ANSI, Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003

iswgraph

<ctype.h> or <wchar.h>

ANSI, Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003

_isgraph_l

<ctype.h>

Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003

_iswgraph_l

<ctype.h> or <wchar.h>

Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003

For additional compatibility information, see Compatibility in the Introduction.

Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.

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