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diff --git a/src/Runtime/Source/engine/Qt3DSEGLWindowSystem.h b/src/Runtime/Source/engine/Qt3DSEGLWindowSystem.h
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+/****************************************************************************
+**
+** Copyright (C) 2013 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QT3DS_EGL_WINDOW_SYSTEM_H
+#define QT3DS_EGL_WINDOW_SYSTEM_H
+#include "Qt3DSEGLInfo.h"
+#include "Qt3DSWindowSystem.h"
+#include "nv_main/nv_main.h"
+
+namespace Q3DStudio {
+struct SEGLWindowSystemImpl : public IWindowSystem
+{
+    SEGLInfo m_EGLInfo;
+
+    virtual QSize GetWindowDimensions()
+    {
+        int w, h;
+
+        eglQuerySurface(gEGLHandles[0].display, gEGLHandles[0].surface, EGL_WIDTH, &w);
+        eglQuerySurface(gEGLHandles[0].display, gEGLHandles[0].surface, EGL_HEIGHT, &h);
+
+        return QSize(w, h);
+    }
+    virtual void SetWindowDimensions(const QSize &) {}
+    // For platforms that support it, we get the egl info for render plugins
+    // Feel free to return NULL.
+    virtual SEGLInfo *GetEGLInfo()
+    {
+        m_EGLInfo.display = gEGLHandles[0].display;
+        m_EGLInfo.surface = gEGLHandles[0].surface;
+        m_EGLInfo.context = gEGLHandles[0].context;
+        m_EGLInfo.config = gEGLHandles[0].config;
+        m_EGLInfo.nativewin = gEGLHandles[0].nativewin;
+        return &m_EGLInfo;
+    }
+    // on some systems we allow our default render target to be a offscreen buffer
+    // otherwise return 0;
+    virtual int GetDefaultRenderTargetID() { return 0; }
+    // returns the depth buffer bit count for the render window
+    // overwrite this one for your own needs
+    virtual int GetDepthBitCount()
+    {
+        EGLint depth = 16;
+#ifdef _PLATFORM_USE_EGL
+        if (gEGLHandles[0].display && gEGLHandles[0].config)
+            eglGetConfigAttrib(gEGLHandles[0].display, gEGLHandles[0].config, EGL_DEPTH_SIZE,
+                               &depth);
+#endif
+
+        return depth;
+    }
+};
+};
+
+#endif