diff -r 85266cc22c7f -r 35baca0e7a2e javauis/eswt_qt/org.eclipse.swt/Eclipse_SWT_PI/qt/library/graphics/graphics.h
--- a/javauis/eswt_qt/org.eclipse.swt/Eclipse_SWT_PI/qt/library/graphics/graphics.h	Fri Jun 11 13:33:44 2010 +0300
+++ b/javauis/eswt_qt/org.eclipse.swt/Eclipse_SWT_PI/qt/library/graphics/graphics.h	Tue Jul 06 20:36:19 2010 +0300
@@ -349,6 +349,11 @@
     virtual CFbsBitmap* getSymbianBitmap() = 0;
 #endif    
     
+    /**
+     * Switches to software rendering if the window goes invisible
+     * and back to hardware rendering when becoming visible.
+     */
+    virtual void handleSymbianWindowVisibilityChange(bool aVisible) = 0;
 };