From caeff5bb88718b7bf7ec8325496ee2f2d87bd5eb Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Mon, 9 Jun 2014 22:26:37 -0400
Subject: [PATCH] Implemented RepaintAll() on Windows.

---
 area_windows.go    |  3 +++
 sysdata_windows.go | 16 ++++++++++++++++
 uitask_windows.go  |  1 +
 3 files changed, 20 insertions(+)

diff --git a/area_windows.go b/area_windows.go
index 235a5a3..5afd259 100644
--- a/area_windows.go
+++ b/area_windows.go
@@ -698,6 +698,9 @@ func areaWndProc(hwnd _HWND, uMsg uint32, wParam _WPARAM, lParam _LPARAM) _LRESU
 		adjustAreaScrollbars(s)
 		repaintArea(s)					// this calls for an update
 		return 0
+	case msgRepaintAll:
+		repaintArea(s)
+		return 0
 	default:
 		return defWindowProc(hwnd, uMsg, wParam, lParam)
 	}
diff --git a/sysdata_windows.go b/sysdata_windows.go
index 7e0335c..94f719a 100644
--- a/sysdata_windows.go
+++ b/sysdata_windows.go
@@ -669,3 +669,19 @@ func (s *sysData) setAreaSize(width int, height int) {
 	}
 	<-ret
 }
+
+func (s *sysData) repaintAll() {
+	ret := make(chan uiret)
+	defer close(ret)
+	uitask <- &uimsg{
+		call:		_sendMessage,
+		p:		[]uintptr{
+			uintptr(s.hwnd),
+			uintptr(msgRepaintAll),
+			uintptr(0),
+			uintptr(0),
+		},
+		ret:		ret,
+	}
+	<-ret
+}
diff --git a/uitask_windows.go b/uitask_windows.go
index f303ee5..04ab54a 100644
--- a/uitask_windows.go
+++ b/uitask_windows.go
@@ -39,6 +39,7 @@ const (
 	msgRequested = _WM_APP + iota + 1		// + 1 just to be safe
 	msgQuit
 	msgSetAreaSize
+	msgRepaintAll
 )
 
 var (