initial commit

1 files changed, 30 insertions, 0 deletions

diff --git a/os.h b/os.h
new file mode 100644
index 0000000..e4ba71c
--- /dev/null
+++ b/os.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "error.h"
+
+#include <Windows.h>
+
+namespace os
+{
+    OSVERSIONINFOW get_version_info()
+    {
+        OSVERSIONINFOW info;
+        ZeroMemory(&info, sizeof(info));
+        info.dwOSVersionInfoSize = sizeof(info);
+
+        if (!GetVersionExW(&info))
+            error::raise("GetVersionExW");
+
+        return info;
+    }
+
+    bool is_vista_or_later(const OSVERSIONINFOW& info)
+    {
+        return info.dwMajorVersion >= 6;
+    }
+
+    bool is_vista_or_later()
+    {
+        return is_vista_or_later(get_version_info());
+    }
+}