From cd5c13bf3e0af5688c8f2fb02b6cf772626d0ba2 Mon Sep 17 00:00:00 2001
From: Vincent Wei <vincent@minigui.org>
Date: Tue, 14 Jan 2020 11:59:44 +0800
Subject: [PATCH] restore shared znode info and add mem_dc field for
 compositing schema

---
 include/minigui.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/minigui.h b/include/minigui.h
index 16b156eb..c0f4cd86 100644
--- a/include/minigui.h
+++ b/include/minigui.h
@@ -236,10 +236,8 @@ typedef struct _MG_Layer
 
     /** Internal field. */
     void* zorder_info;
-#ifdef _MGSCHEMA_SHAREDFB
     /** Internal field. */
     int   zorder_shmid;
-#endif
 } MG_Layer;
 
 /*screen attr type*/
@@ -971,6 +969,13 @@ typedef struct _ZNODEINFO
      * with WS_EX_CTRLASMAINWIN style.
      */
     HWND            main_win;
+
+#ifdef _MGSCHEMA_COMPOSITING
+    /**
+     * The memory DC for this znode.
+     */
+    HDC             mem_dc;
+#endif
 } ZNODEINFO;
 
 /**