gFileReplaceReadwrite {RGtk2} | R Documentation

## gFileReplaceReadwrite

### Description

Returns an output stream for overwriting the file in readwrite mode, possibly creating a backup copy of the file first. If the file doesn't exist, it will be created.

### Usage

    gFileReplaceReadwrite(object, etag, make.backup, flags, cancellable = NULL,
        .errwarn = TRUE)

### Arguments

``object`` | a `GFile`
``etag`` | an optional entity tag for the current `GFile`, or `NULL` to ignore
``make.backup`` | `TRUE` if a backup should be created
``flags`` | a set of `GFileCreateFlags`
``cancellable`` | optional `GCancellable` object, `NULL` to ignore
`.errwarn` | Whether to issue a warning on error or fail silently

### Details

For details about the behaviour, see `gFileReplace` which does the same thing but returns an output stream only.

Note that in many non-local file cases read and write streams are not supported, so make sure you really need to do read and write streaming, rather than just opening for reading or writing. Since 2.22

### Value

A list containing the following elements:

`retval` | [`GFileIOStream`] a `GFileIOStream` or `NULL` on error.
``error`` | return location for a `GError`, or `NULL`

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]