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samples/app/NativeWindowHelperLinux.cpp

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+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "NativeWindowHelper.h"
+
+#include <utils/Panic.h>
+
+#include <SDL_syswm.h>
+
+void* getNativeWindow(SDL_Window* sdlWindow) {
+    SDL_SysWMinfo wmi;
+    SDL_VERSION(&wmi.version);
+    ASSERT_POSTCONDITION(SDL_GetWindowWMInfo(sdlWindow, &wmi), "SDL version unsupported!");
+    Window win = (Window) wmi.info.x11.window;
+    return (void*) win;
+}