--- a/GUIWindow.h	Sun Feb 24 03:07:03 2013 +0200
+++ b/GUIWindow.h	Sun Feb 24 09:51:42 2013 +0200
@@ -196,7 +196,7 @@
   UIMSG_SaveGame = 0x53,
   UIMSG_54 = 0x54,
   UIMSG_55 = 0x55,
-  UIMSG_56 = 0x56,
+  UIMSG_SelectSpell = 0x56,
   UIMSG_57 = 0x57,
   UIMSG_58 = 0x58,
   UIMSG_5A = 0x5A,
@@ -373,7 +373,7 @@
 
 
 
-
+#define AddMessage(msg, param, a4) AddMessageImpl((msg), (param), (a4), __FILE__, __LINE__)
 /*  250 */
 #pragma pack(push, 1)
 struct GUIMessageQueue
@@ -383,10 +383,13 @@
   {}
 
   void PopMessage(UIMessageType *pMsg, int *pParam, int *a4);
-  void SendMessage(UIMessageType msg, int param, unsigned int a4);
+  void AddMessageImpl(UIMessageType msg, int param, unsigned int a4, const char *file = nullptr, int line = 0);
 
   unsigned int uNumMessages;
   GUIMessage pMessages[40];
+
+  const char *files[40];
+  int          lines[40];
 };
 #pragma pack(pop)