From a8834453e0add9c68df485121bc01e248cfb43b8 Mon Sep 17 00:00:00 2001
From: narzoul <narzoul@users.noreply.github.com>
Date: Mon, 18 Apr 2016 22:14:53 +0200
Subject: [PATCH] Added default paint handlers for ComboListBox controls

Now the background is properly erased and the scroll bar updated when scrolling.
---
 DDrawCompat/CompatGdiPaintHandlers.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/DDrawCompat/CompatGdiPaintHandlers.cpp b/DDrawCompat/CompatGdiPaintHandlers.cpp
index 696ed50..986e9c9 100644
--- a/DDrawCompat/CompatGdiPaintHandlers.cpp
+++ b/DDrawCompat/CompatGdiPaintHandlers.cpp
@@ -20,11 +20,17 @@ namespace
 	LRESULT onPaint(HWND hwnd, WNDPROC origWndProc);
 	LRESULT onPrint(HWND hwnd, UINT msg, HDC dc, LONG flags, WNDPROC origWndProc);
 
+	WNDPROC g_origComboListBoxWndProc = nullptr;
 	WNDPROC g_origEditWndProc = nullptr;
 	WNDPROC g_origListBoxWndProc = nullptr;
 	WNDPROC g_origMenuWndProc = nullptr;
 	WNDPROC g_origScrollBarWndProc = nullptr;
 
+	LRESULT WINAPI comboListBoxWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+	{
+		return defPaintProc(hwnd, msg, wParam, lParam, g_origComboListBoxWndProc, "comboListBoxWndProc");
+	}
+
 	LRESULT WINAPI defDlgProcA(HWND hdlg, UINT msg, WPARAM wParam, LPARAM lParam)
 	{
 		return defPaintProc(hdlg, msg, wParam, lParam, CALL_ORIG_FUNC(DefDlgProcA), "defDlgProcA");
@@ -304,6 +310,7 @@ namespace CompatGdiPaintHandlers
 			"ImmersiveContextMenu",
 			0);
 
+		CompatGdi::hookWndProc("ComboLBox", g_origComboListBoxWndProc, &comboListBoxWndProc);
 		CompatGdi::hookWndProc("Edit", g_origEditWndProc, &editWndProc);
 		CompatGdi::hookWndProc("ListBox", g_origListBoxWndProc, &listBoxWndProc);
 		CompatGdi::hookWndProc("#32768", g_origMenuWndProc, &menuWndProc);