# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1217989234 -28800
# Node ID 8d219ebd729eed5fe2233564d8a6ec05c1be85f8
# Parent  943acee7f346615a5791c51b4800fadd3ee1ac70
-

diff -r 943acee7f346 -r 8d219ebd729e src/redraw_man.c
--- a/src/redraw_man.c	Wed Aug 06 10:14:45 2008 +0800
+++ b/src/redraw_man.c	Wed Aug 06 10:20:34 2008 +0800
@@ -716,6 +716,10 @@
     return OK;
 }
 
+/* NOTE: Before redrawing, the canvas/surface must be cleaned.
+ * NOTE: After redrawing, the content must be copied to the backend surface.
+ */
+
 int rdman_redraw_all(redraw_man_t *rdman) {
     geo_t *geo;
     int r;