Documented PromptGetFile and optional prompt to GetDirectory.
diff --git a/Doc/mac/libmacfs.tex b/Doc/mac/libmacfs.tex
index 9df3f84..fd7ac3f 100644
--- a/Doc/mac/libmacfs.tex
+++ b/Doc/mac/libmacfs.tex
@@ -48,6 +48,10 @@
without cancelling.
\end{funcdesc}
+\begin{funcdesc}{PromptGetFile}{prompt\optional{\, type\, ...}}
+Similar to \var{StandardGetFile} but allows you to specify a prompt.
+\end{funcdesc}
+
\begin{funcdesc}{StandardPutFile}{prompt\, \optional{default}}
Present the user with a standard ``open output file''
dialog. \var{prompt} is the prompt string, and the optional
@@ -56,9 +60,10 @@
the dialog without cancelling.
\end{funcdesc}
-\begin{funcdesc}{GetDirectory}{}
+\begin{funcdesc}{GetDirectory}{\optional{prompt}}
Present the user with a non-standard ``select a directory''
-dialog. Return an FSSpec object and a success-indicator.
+dialog. \var{prompt} is the prompt string, and the optional.
+Return an FSSpec object and a success-indicator.
\end{funcdesc}
\begin{funcdesc}{FindFolder}{where\, which\, create}