has occurred, this function will return false and set error appropriately if present.
Seekable.truncate
bool truncate(long offset, gio.cancellable.Cancellable cancellable = null)Sets the length of the stream to offset. If the stream was previously larger than offset, the extra data is discarded. If the stream was previously shorter than offset, it is extended with NUL ('\0') bytes.
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 [gio.types.IOErrorEnum.Cancelled] will be returned. If an operation was partially finished when the operation was cancelled the partial result will be returned, without an error.
Parameters
offset | new length for seekable, in bytes. |
cancellable | optional #GCancellable object, null to ignore. |
Returns
true if successful. If an error
Throws
[ErrorWrap]