include: Change mapi.h to use ULONG for Win64 compatibility.

dlls/mapi32/sendmail.c

@@ -71,7 +71,7 @@ ULONG WINAPI MAPISendMail( LHANDLE session, ULONG_PTR uiparam,
     HRESULT res;
     DWORD size;
 
-    TRACE( "(0x%08lx 0x%08lx %p 0x%08lx 0x%08x)\n", session, uiparam,
+    TRACE( "(0x%08x 0x%08lx %p 0x%08x 0x%08x)\n", session, uiparam,
            message, flags, reserved );
 
     if (!message) return MAPI_E_FAILURE;

include/mapi.h

@@ -27,15 +27,15 @@ extern "C" {
 
 #ifndef __LHANDLE
 #define __LHANDLE
-typedef unsigned long           LHANDLE, *LPLHANDLE;
+typedef ULONG                   LHANDLE, *LPLHANDLE;
 #endif
 #define lhSessionNull           ((LHANDLE)0)
 
 #ifndef WINE_FLAGS_DEFINED
 #define WINE_FLAGS_DEFINED
-typedef unsigned long           FLAGS;
+typedef ULONG                   FLAGS;
 #endif
-typedef unsigned long*          LPULONG;
+typedef ULONG                  *LPULONG;
 
 typedef struct
 {