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2026-08-08 01:39:36 +00:00 · 2020-04-22 12:56:21 -04:00
commit 3bf9df6b27
15370 changed files with 5489726 additions and 0 deletions
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include "stdafx.h"
+#include "osver.h"
+
+static eOSVersion s_OS = eUninitialized;
+
+void initOSVersion()
+{
+    OSVERSIONINFO versioninfo;
+    versioninfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+    if (GetVersionEx(&versioninfo))
+    {
+        switch(versioninfo.dwPlatformId)
+        {
+            case VER_PLATFORM_WIN32_WINDOWS:
+            {
+                s_OS = eWin9x;
+                break;
+            }
+            case VER_PLATFORM_WIN32_NT:
+            {
+                s_OS = eWinNT;
+                break;
+            }
+            default:
+            {
+                s_OS = eUnknown;
+                break;
+            }
+        }
+    }
+}
+
+eOSVersion getOSVersion()
+{
+    if (s_OS == eUninitialized)
+    {
+        initOSVersion();
+    }
+    return s_OS;
+}