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RtCreateMutex (iwin32x)
INtime SDK v6 > About INtime > Alternate APIs > iwin32 API > iwin32x API > RtCreateMutex (iwin32x)

Creates or opens a mutex.

HANDLE RtCreateMutex(

LPSECURITY_ATTRIBUTES lpMutexAttributes,
BOOLEAN bInitialOwner,
LPCTSTR lpName
);

Parameters

lpMutexAttributes
Ignored. Must be NULL.
bInitialOwner
Specifies the initial owner of the mutex object:
TRUE and the caller created the mutex
Calling thread obtains ownership of the mutex object. To determine if the caller created the mutex, see the Return Values section.
FALSE
Calling thread does not obtain ownership of the mutex.
lpName
Pointer to a null-terminated string that specifies the mutex object's name. The name is limited to MAX_PATH characters and can contain any character except the backslash path-separator character (\). Name comparison is case sensitive. Values include:
NULL
The mutex object is created without a name.
Matches an existing named mutex object
Ignores the bInitialOwner parameter because it was already set by the creation process.
Matches the name of an existing event, semaphore, or shared memory object
The function fails and the Windows' GetLastError function returns ERROR_INVALID_HANDLE. This occurs because these objects share the same name space.

Return Values

Handle to mutex object
Success.
Handle to existing object and ERROR_ALREADY_EXISTS
The mutex object existed before the function call.
NULL
Failure. For extended error information, see the Windows' GetLastError function.

Requirements

Versions Defined in Include Link to
INtime 3.0 intime/nt/include/iwin32x.h iwin32x.h iwin32x.lib

Notes

See Also

iwin32x API, iwin32 Overview