diff --git a/include/ui/FramebufferNativeWindow.h b/include/ui/FramebufferNativeWindow.h
index e72357a..cb9bf94 100644
--- a/include/ui/FramebufferNativeWindow.h
+++ b/include/ui/FramebufferNativeWindow.h
@@ -62,6 +62,7 @@
     static int dequeueBuffer(android_native_window_t* window, android_native_buffer_t** buffer);
     static int lockBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
     static int queueBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
+    static int query(android_native_window_t* window, int what, int* value);
     
     framebuffer_device_t* fbDev;
     alloc_device_t* grDev;