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_putch_nolock, _putwch_nolock 

Writes a character to the console without locking the thread.


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

Parameters

c

Character to be output.

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

_putch_nolock and _putwch_nolock are identical to _putch and _putwch, respectively, except that they are not protected from interference by other threads. They might be faster because they do not 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.

Generic-Text Routine Mappings
Tchar.h routine _UNICODE and _MBCS not defined _MBCS defined _UNICODE defined

_puttch_nolock

_putch_nolock

_putch_nolock

_putwch_nolock

Routine Required header Compatibility

_putch_nolock

<conio.h>

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

_putwch_nolock

<conio.h>

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

For more compatibility information, see Compatibility.

Libraries

All versions of the C run-time libraries.

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