diff --git a/gtkarea/area.c b/gtkarea/area.c
index a8450c2b..c1ab08a8 100644
--- a/gtkarea/area.c
+++ b/gtkarea/area.c
@@ -293,6 +293,7 @@ gboolean areaWidget_enterleave_notify_event(GtkWidget *w, GdkEventCrossing *e)
 
 // note: there is no equivalent to WM_CAPTURECHANGED on GTK+; there literally is no way to break a grab like that (at least not on X11 and Wayland)
 // even if I invoke the task switcher and switch processes, the mouse grab will still be held until I let go of all buttons
+// therefore, no DragBroken()
 
 // TODO key events
 
diff --git a/macarea/alt/area.m b/macarea/alt/area.m
index 14ed2b23..b39ebf5b 100644
--- a/macarea/alt/area.m
+++ b/macarea/alt/area.m
@@ -240,6 +240,10 @@ mouseEvent(mouseUp)
 mouseEvent(rightMouseUp)
 mouseEvent(otherMouseUp)
 
+// note: there is no equivalent to WM_CAPTURECHANGED on Mac OS X; there literally is no way to break a grab like that
+// even if I invoke the task switcher and switch processes, the mouse grab will still be held until I let go of all buttons
+// therefore, no DragBroken()
+
 @end
 
 @implementation areaView