+ /**
+ Call this function to enable auto-completion of the text using the file
+ system directories.
+
+ Unlike AutoCompleteFileNames() which completes both file names and
+ directories, this function only completes the directory names.
+
+ Notice that currently this function is only implemented in wxMSW port
+ and does nothing under the other platforms.
+
+ @since 2.9.3
+
+ @return
+ @true if the auto-completion was enabled or @false if the operation
+ failed, typically because auto-completion is not supported by the
+ current platform.
+
+ @see AutoComplete()
+ */
+ bool AutoCompleteDirectories();
+