From eed120995b629bda0b7e4b863c2b36d77c55f120 Mon Sep 17 00:00:00 2001
From: Mike McCormack <mike@codeweavers.com>
Date: Mon, 3 Apr 2006 18:52:11 +0900
Subject: [PATCH] ole32: STGM_PRIORITY implies STGM_SHARE_EXCLUSIVE.

---
 dlls/ole32/storage32.c       | 9 ++++++++-
 dlls/ole32/tests/storage32.c | 7 +++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/dlls/ole32/storage32.c b/dlls/ole32/storage32.c
index bbb2d3cde7a..ef6b248f3a4 100644
--- a/dlls/ole32/storage32.c
+++ b/dlls/ole32/storage32.c
@@ -5908,10 +5908,17 @@ HRESULT WINAPI StgOpenStorage(
     goto end;
   }
 
+  /* STGM_PRIORITY implies exclusive access */
+  if (grfMode & STGM_PRIORITY)
+  {
+    grfMode &= ~0xf0; /* remove the existing sharing mode */
+    grfMode |= STGM_SHARE_EXCLUSIVE;
+  }
+
   /*
    * Validate the sharing mode
    */
-  if (!(grfMode & (STGM_TRANSACTED|STGM_PRIORITY)))
+  if (!(grfMode & STGM_TRANSACTED))
     switch(STGM_SHARE_MODE(grfMode))
     {
       case STGM_SHARE_EXCLUSIVE:
diff --git a/dlls/ole32/tests/storage32.c b/dlls/ole32/tests/storage32.c
index 7ed965594cd..d9668a5c76b 100644
--- a/dlls/ole32/tests/storage32.c
+++ b/dlls/ole32/tests/storage32.c
@@ -474,6 +474,13 @@ static void test_open_storage(void)
     if (stg)
         IStorage_Release(stg);
 
+    /* open like Project 2003 */
+    stg = NULL;
+    r = StgOpenStorage( filename, NULL, STGM_PRIORITY, NULL, 0, &stg);
+    ok(r == S_OK, "should succeed\n");
+    if (stg)
+        IStorage_Release(stg);
+
     r = DeleteFileW(filename);
     ok(r, "file didn't exist\n");
 }
-- 
2.11.4.GIT