diff --git a/include/surfaceflinger/ISurfaceComposer.h b/include/surfaceflinger/ISurfaceComposer.h
index 382cbda..693fbfb 100644
--- a/include/surfaceflinger/ISurfaceComposer.h
+++ b/include/surfaceflinger/ISurfaceComposer.h
@@ -121,7 +121,8 @@
     virtual status_t captureScreen(DisplayID dpy,
             sp<IMemoryHeap>* heap,
             uint32_t* width, uint32_t* height, PixelFormat* format,
-            uint32_t reqWidth, uint32_t reqHeight) = 0;
+            uint32_t reqWidth, uint32_t reqHeight,
+            uint32_t minLayerZ, uint32_t maxLayerZ) = 0;
 
     virtual status_t turnElectronBeamOff(int32_t mode) = 0;
     virtual status_t turnElectronBeamOn(int32_t mode) = 0;
diff --git a/include/surfaceflinger/SurfaceComposerClient.h b/include/surfaceflinger/SurfaceComposerClient.h
index a80832d..25b2ebf 100644
--- a/include/surfaceflinger/SurfaceComposerClient.h
+++ b/include/surfaceflinger/SurfaceComposerClient.h
@@ -183,6 +183,8 @@
     // frees the previous screenshot and capture a new one
     status_t update();
     status_t update(uint32_t reqWidth, uint32_t reqHeight);
+    status_t update(uint32_t reqWidth, uint32_t reqHeight,
+            uint32_t minLayerZ, uint32_t maxLayerZ);
 
     // release memory occupied by the screenshot
     void release();