标签' File 'as normal file, that can be opened, saved, etc..

This example opened a shared memory block with a system id of 0x0fff.

If the file is opened for reading, this function is emulated but can be extremely slow. If the file is opened for writing, only forward seeks are supported gzseek then compresses a sequence of zeroes up to the new starting position.

The file filename will be opened from the filesystem and its contents written to standard output.

If the requested resource was opened successfully, you should return TRUE, otherwise you should return FALSE

If the open fails, the function returns FALSE, otherwise it returns a pointer to the newly opened file.

persistent is a flag the controls whether the stream is opened as a persistent stream. Generally speaking, this parameter will usually be 0.

蛁 If the optional argument is specified the given link is used to retrieve the error code. If not, the last opened link is used.

蛁 If the optional argument is specified the given link is used to retrieve the error message. If not, the last opened link is used.

With mcal support, a calendar stream can be opened much like the mailbox stream with the IMAP support. Calendars can be local file stores, remote ICAP servers, or other formats that are supported by the mcal library.

If not NULL, timeout specifies a maximum time to allow for the connection to be made. If the connection attempt takes longer than the timeout value, the connection attempt is aborted and NULL is returned to indicate that the stream could not be opened.