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Process Control Function

int _spawnv(int mode, const char *cmdname, const char *const *argv);

int _wspawnv(int mode, const wchar_t *cmdname, const wchar_t *const *argv);

int _tspawnv(int mode, const TCHAR *cmdname, const TCHAR *const *argv);

Internationalization (I18n) Function Overview

The _spawnv function creates and executes a new process for the file at cmdname, called with an array of pointers to command-line arguments in argv. The function returns -1 in the event of an error, or a value that depends on the setting of mode.

_wspawnv is the wide-character version of _spawnv that supports wide-character string arguments.

_tspawnv is the Windows-only Generic version of the function; with the _MBCS or _UNICODE compiler flags determining its mapping to either _spawnv or _wspawnv.

See the MSDN library for more information.

I18n Issues

Use the appropriate version of the function as required for internationalization support, noting the following:

For a Windows MBCS application, _spawnv depends on the multibyte code page in effect. By default, the multibyte code page is set to the system-default ANSI code page obtained from the operating system at program startup. Use _getmbcp and _setmbcp to query or change the current multibyte code page, respectively.

Recommended Replacements*

*If you're already using the recommended function, see I18n Issues for other reasons why Globalyzer is detecting the function.

Process Control Functions

 

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