1 files changed, 1 insertions, 0 deletions
diff --git a/area.go b/area.go
index c3c47da..b1d1b83 100644
--- a/area.go
+++ b/area.go
@@ -80,6 +80,7 @@ type MouseEvent struct {
 
 	// If the event was generated by a mouse button being pressed, Down contains the ID of that button.
 	// Otherwise, Down contains 0.
+	// If Down contains nonzero, the Area will also receive keyboard focus.
 	Down		uint
 
 	// If the event was generated by a mouse button being released, Up contains the ID of that button.