getChildForDisplayName
Gets the child of @file for a given @display_name (i.e. a UTF-8 version of the name). If this function fails, it returns null and @error will be set. This is very useful when constructing a #GFile for a new file and the user entered the filename in the user interface, for instance when you select a directory and type a filename in the file selector.
This call does no blocking I/O.
Return
a #GFile to the specified child, or null if the display name couldn't be converted. Free the returned object with g_object_unref().
Parameters
displayName
string to a possible child