gFileOutputStreamQueryInfo {RGtk2} | R Documentation

## gFileOutputStreamQueryInfo

### Description

Queries a file output stream for the given `attributes`. This function blocks while querying the stream. For the asynchronous version of this function, see `gFileOutputStreamQueryInfoAsync`. While the stream is blocked, the stream will set the pending flag internally, and any other operations on the stream will fail with `G_IO_ERROR_PENDING`.

### Usage

    gFileOutputStreamQueryInfo(object, attributes, cancellable = NULL,
        .errwarn = TRUE)

### Arguments

``object`` | a `GFileOutputStream`.
``attributes`` | a file attribute query string.
``cancellable`` | optional `GCancellable` object, `NULL` to ignore.
`.errwarn` | Whether to issue a warning on error or fail silently

### Details

Can fail if the stream was already closed (with `error` being set to `G_IO_ERROR_CLOSED`), the stream has pending operations (with `error` being set to `G_IO_ERROR_PENDING`), or if querying info is not supported for the stream's interface (with `error` being set to `G_IO_ERROR_NOT_SUPPORTED`). In all cases of failure, `NULL` will be returned.

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 set, and `NULL` will be returned.

### Value

A list containing the following elements:

`retval` | [`GFileInfo`] a `GFileInfo` for the `stream`, or `NULL` on error.
``error`` | a `GError`, `NULL` to ignore.

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]