SetMailslotInfo

The SetMailslotInfo function sets the time-out value used by the specified mailslot for a read operation.

BOOL SetMailslotInfo(

HANDLE hMailslot,	// mailslot handle
DWORD lReadTimeout	// read time-out
);

Parameters

hMailslot

Identifies a mailslot. The CreateMailslot function must create this handle.

lReadTimeout

Specifies the amount of time, in milliseconds, a read operation can wait for a message to be written to the mailslot before a time-out occurs. The following values have special meanings:

Value	Meaning
0	Returns immediately if no message is present. (The system does not treat an immediate return as an error.)
MAILSLOT_WAIT_FOREVER	Waits forever for a message.

This time-out value applies to all subsequent read operations and to all inherited mailslot handles.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The initial time-out value used by a mailslot for a read operation is typically set by CreateMailslot when the mailslot is created.

See Also

CreateMailslot, GetMailslotInfo

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