putch-nolock-putwch-nolock.md

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Learn more about: _putch_nolock, _putwch_nolock	_putch_nolock, _putwch_nolock	4/2/2020	_putwch_nolock _putch_nolock _o__putch_nolock _o__putwch_nolock	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-conio-l1-1-0.dll	DLLExport	apiref	_putch_nolock _puttch_nolock putch_nolock putwch_nolock _putwch_nolock	putwch_nolock function puttch_nolock function characters, writing putch_nolock function _putch_nolock function _puttch_nolock function console, writing characters to _putwch_nolock function	edbc811d-bac6-47fa-a872-fe4f3a1590b0

_putch_nolock, _putwch_nolock

Writes a character to the console without locking the thread.

Important

This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported in Universal Windows Platform apps.

Syntax

int _putch_nolock(
int c
);
wint_t _putwch_nolock(
wchar_t c
);

Parameters

c
Character to be output.

Return value

Returns c if successful. If _putch_nolock fails, it returns EOF; if _putwch_nolock fails, it returns WEOF.

Remarks

_putch_nolock and _putwch_nolock are identical to _putch and _putwch, respectively, except that they aren't protected from interference by other threads. They might be faster because they don't incur the overhead of locking out other threads. Use these functions only in thread-safe contexts such as single-threaded applications or where the calling scope already handles thread isolation.

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

Generic-text routine mappings

Tchar.h routine	_UNICODE and _MBCS not defined	_MBCS defined	_UNICODE defined
_puttch_nolock	_putch_nolock	_putch_nolock	_putwch_nolock

Requirements

Routine	Required header
_putch_nolock	<conio.h>
_putwch_nolock	<conio.h>

For more compatibility information, see Compatibility.

Libraries

All versions of the C run-time libraries.

See also

Console and port I/O
_cprintf, _cprintf_l, _cwprintf, _cwprintf_l
_getch, _getwch