Virtual Method
GioSeekableseek
Declaration [src]
gboolean
seek (
GSeekable* seekable,
goffset offset,
GSeekType type,
GCancellable* cancellable,
GError** error
)
Description [src]
Seeks in the stream by the given offset
, modified by type
.
Attempting to seek past the end of the stream will have different results depending on if the stream is fixed-sized or resizable. If the stream is resizable then seeking past the end and then writing will result in zeros filling the empty space. Seeking past the end of a resizable stream and reading will result in EOF. Seeking past the end of a fixed-sized stream will fail.
Any operation that would result in a negative offset will fail.
If cancellable
is not NULL
, then the operation can be cancelled by
triggering the cancellable object from another thread. If the operation
was cancelled, the error G_IO_ERROR_CANCELLED
will be returned.
Parameters
offset
-
Type:
goffset
A #goffset.
type
-
Type:
GSeekType
A
GSeekType
. cancellable
-
Type:
GCancellable
Optional
GCancellable
object,NULL
to ignore.The argument can be NULL
.The data is owned by the caller of the method. error
-
Type:
GError **
The return location for a recoverable error.
The argument can be NULL
.If the return location is not NULL
, then you must initialize it to aNULL
GError*
.The argument will be left initialized to NULL
by the virtual function if there are no errors.In case of error, the argument will be set to a newly allocated GError
; the caller will take ownership of the data, and be responsible for freeing it.