[hbelusca] 63960: [MPLAY32]: Improve ShowLastWin32Error().

Author: hbelusca
Date: Wed Aug 27 12:38:45 2014
New Revision: 63960

URL: http://svn.reactos.org/svn/reactos?rev=63960&view=rev
Log:
[MPLAY32]: Improve ShowLastWin32Error().

Modified:
    trunk/reactos/base/applications/mplay32/mplay32.c

Modified: trunk/reactos/base/applications/mplay32/mplay32.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/mplay32/m...
==============================================================================
--- trunk/reactos/base/applications/mplay32/mplay32.c	[iso-8859-1] (original)
+++ trunk/reactos/base/applications/mplay32/mplay32.c	[iso-8859-1] Wed Aug 27 12:38:45 2014
@@ -88,13 +88,19 @@
 static VOID
 ShowLastWin32Error(HWND hwnd)
 {
-    DWORD dwError;
     LPTSTR lpMessageBuffer;
-
-    dwError = GetLastError();
-    FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, dwError, 0, (LPWSTR)&lpMessageBuffer, 0, NULL);
-    MessageBox(hwnd, lpMessageBuffer, szAppTitle, MB_OK | MB_ICONERROR);
-    LocalFree(lpMessageBuffer);
+    DWORD dwError = GetLastError();
+
+    if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+                      NULL,
+                      dwError,
+                      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                      (LPTSTR)&lpMessageBuffer,
+                      0, NULL) != 0)
+    {
+        MessageBox(hwnd, lpMessageBuffer, szAppTitle, MB_OK | MB_ICONERROR);
+        if (lpMessageBuffer) LocalFree(lpMessageBuffer);
+    }
 }

static VOID