[3/3] gdi32: Fix error code for WidenPath() on invalid hdc

[Nikolay Sivov]

Changelog:
    - Fix error code for WidenPath() on invalid hdc

>From 3ff30ccb6bfe7139a09a78af890e9560e93a2ed6 Mon Sep 17 00:00:00 2001
From: Nikolay Sivov <bunglehead at gmail.com>
Date: Sat, 10 Jan 2009 22:21:17 +0300
Subject:  Fix error code for WidenPath() on invalid hdc

---
 dlls/gdi32/path.c       |    6 +++++-
 dlls/gdi32/tests/path.c |    7 +++++++
 2 files changed, 12 insertions(+), 1 deletions(-)

diff --git a/dlls/gdi32/path.c b/dlls/gdi32/path.c
index e9cb7bb..5fc96e0 100644
--- a/dlls/gdi32/path.c
+++ b/dlls/gdi32/path.c
@@ -2230,7 +2230,11 @@ BOOL WINAPI WidenPath(HDC hdc)
    DC *dc = get_dc_ptr( hdc );
    BOOL ret = FALSE;
 
-   if(!dc) return FALSE;
+   if(!dc)
+   {
+       SetLastError(ERROR_INVALID_HANDLE);
+       return FALSE;
+   }
 
    if(dc->funcs->pWidenPath)
       ret = dc->funcs->pWidenPath(dc->physDev);
diff --git a/dlls/gdi32/tests/path.c b/dlls/gdi32/tests/path.c
index 7944ed5..44beb7a 100644
--- a/dlls/gdi32/tests/path.c
+++ b/dlls/gdi32/tests/path.c
@@ -40,6 +40,7 @@ static void test_widenpath(void)
     HPEN oldPen;
     POINT pnt[6];
     INT nSize, ret;
+    BOOL bRet;
 
     /* Create a pen to be used in WidenPath */
     greenPen = CreatePen(PS_SOLID, 10, RGB(0,0,0));
@@ -59,6 +60,12 @@ static void test_widenpath(void)
     pnt[5].x = 100;
     pnt[5].y = 300;
 
+    /* Invalid hdc handle */
+    SetLastError(0xdeadbeef);
+    bRet = WidenPath(NULL);
+    ok(!bRet, "WidenPath() should fail for invalid hdc\n");
+    ok(GetLastError() == ERROR_INVALID_HANDLE, "Expected ERROR_INVALID_HANDLE, got %u\n", GetLastError());
+
     /* Set a polyline path */
     BeginPath(hdc);
     Polyline(hdc, pnt, 6);
-- 
1.5.6.5