From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Mon, 24 Aug 2009 19:55:46 +0000 (+0200)
Subject: Add comment.
X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fprojects%2Ffpprac.git;a=commitdiff_plain;h=71612a0748db45e78a07aa5f92da543688573745

Add comment.
---

diff --git a/FPPrac.hs b/FPPrac.hs
index 7e5a691..9f5ec9d 100644
--- a/FPPrac.hs
+++ b/FPPrac.hs
@@ -177,7 +177,8 @@ runGUI w h (IS { .. }) = do
 	Gtk.mainGUI
 	
 
--- | Copy the given surface to the exposed window on an expose event.
+-- | Called when (part of) the window should be redrawn. Copy the given surface
+--   to the exposed window on an expose event.
 onExpose :: IORef Cairo.Surface -> EventM.EventM EventM.EExpose Bool
 onExpose buffer = do
 	current_buffer <- liftIO $ readIORef buffer