From f11b022fbb508bc2a1950d74b1e7d2ac671eb28e Mon Sep 17 00:00:00 2001
From: Huw Davies <huw@codeweavers.com>
Date: Tue, 11 Nov 2003 00:26:29 +0000
Subject: [PATCH] Ownerdraw buttons should erase themselves in WM_ERASEBKGND.

---
 controls/button.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/controls/button.c b/controls/button.c
index 2ffa0b9a4ba..ec63309436c 100644
--- a/controls/button.c
+++ b/controls/button.c
@@ -205,6 +205,17 @@ static LRESULT WINAPI ButtonWndProc_common(HWND hWnd, UINT uMsg,
         return 0;
 
     case WM_ERASEBKGND:
+        if (btn_type == BS_OWNERDRAW)
+        {
+            HDC hdc = (HDC)wParam;
+            RECT rc;
+            HBRUSH hBrush = (HBRUSH)SendMessageW(GetParent(hWnd), WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd);
+            if (!hBrush) /* did the app forget to call defwindowproc ? */
+                hBrush = (HBRUSH)DefWindowProcW(GetParent(hWnd), WM_CTLCOLORBTN,
+                                                (WPARAM)hdc, (LPARAM)hWnd);
+            GetClientRect(hWnd, &rc);
+            FillRect(hdc, &rc, hBrush);
+        }
         return 1;
 
     case WM_PAINT: