queryInfo
Gets the requested information about specified @file. The result is a #GFileInfo object that contains key-value attributes (such as the type or size of the file).
The @attributes value is a string that specifies the file attributes that should be gathered. It is not an error if it's not possible to read a particular requested attribute from a file - it just won't be set. @attributes should be a comma-separated list of attributes or attribute wildcards. The wildcard "" means all attributes, and a wildcard like "standard::" means all attributes in the standard namespace. An example attribute query be "standard::*,owner::user". The standard attributes are available as defines, like %G_FILE_ATTRIBUTE_STANDARD_NAME.
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.
For symlinks, normally the information about the target of the symlink is returned, rather than information about the symlink itself. However if you pass %G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS in @flags the information about the symlink itself will be returned. Also, for symlinks that point to non-existing files the information about the symlink itself will be returned.
If the file does not exist, the %G_IO_ERROR_NOT_FOUND error will be returned. Other errors are possible too, and depend on what kind of filesystem the file is on.
Return
a #GFileInfo for the given @file, or null on error. Free the returned object with g_object_unref().
Parameters
an attribute query string
a set of #GFileQueryInfoFlags
optional #GCancellable object, null to ignore