diff -r 65e91466a14b -r b7e5ed8c1342 power_save_display_mode_stub/inc/power_save_display_mode.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/power_save_display_mode_stub/inc/power_save_display_mode.h	Tue Sep 07 08:19:48 2010 +0300
@@ -0,0 +1,130 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*     Defines an API used by Series 60 to access the power save display mode
+*     features.
+*      
+*
+*/
+
+#ifndef __POWER_SAVE_DISPLAY_MODE_H__
+#define __POWER_SAVE_DISPLAY_MODE_H__
+
+// INCLUDES
+#include <e32base.h>
+
+// CLASS DECLARATION
+
+/**
+* Adaptation API for power save display mode use
+*
+* @since Series 60 3.0
+*/
+class CPowerSaveDisplayMode : public CBase
+    {
+public:
+    /**
+	* Power save levels define how much power should be saved.
+    * Note: higher settings result in lower image quality.
+	*/
+    enum TPowerSaveLevel
+        {
+        ENone   = 0, //!< No power saving allowed
+        ELow    = 1, //!< Minimal saving with high quality (default)
+        EMedium = 2, //!< High saving with medium quality
+        EHigh   = 3, //!< Maximum saving with low quality
+        };
+
+    /// Destructor
+    IMPORT_C ~CPowerSaveDisplayMode();
+
+    /**
+    * Creates object and connects to display.
+    * @param  aDisplayNumber Which display to connect to, default is primary display.
+    * @return new CPowerSaveDisplayMode, NULL on error
+    */
+    IMPORT_C static CPowerSaveDisplayMode* NewL(TInt aDisplayNumber = 0);
+
+    /**
+    * Enables power save mode. Sets lines between given parameters visible,
+    * other display lines are turned off and not shown.
+    * @pre Image to display must be drawn in videobuffer before calling Set().
+    * @param  aStartRow   First visible line, starting from 0
+    * @param  aEndRow     Last visible line
+    * @param  aFullColors Full color mode if ETrue and hw supports that
+    * Note: full color mode consumes more power
+    * @return KErrNone on success
+    */
+    IMPORT_C TInt Set(TUint aStartRow, TUint aEndRow, TBool aFullColors = EFalse);
+
+    /**
+    * Enables power save mode. Sets lines between given parameters visible,
+    * other display lines are turned off and not shown.
+    * @pre Image to display must be drawn in videobuffer before calling Set().
+    * @param  aStartRow   First visible line, starting from 0
+    * @param  aEndRow     Last visible line
+    * @param  aPixels     Pointer to array of color of each pixel
+    * @param  aFullColors Full color mode if ETrue and hw supports that
+    * Note: full color mode consumes more power
+    * @return KErrNone on success
+    */
+    IMPORT_C TInt Set(TUint aStartRow, TUint aEndRow, TUint16* aPixels, TBool aFullColors = EFalse);
+
+    /**
+    * Returns max number of lines that display supports in power save mode
+    * (e.g.50 lines or full screen).
+    * @return  Number of supported power save mode lines.
+    */
+    IMPORT_C TUint MaxLines();
+
+    /**
+    * Returns status of power save mode.
+    * @return  ETrue = Enabled (on), EFalse = disabled (off, normal display)
+    */
+    IMPORT_C TBool Status();
+
+    /** Turns off power save mode. All lines on display will be shown normally.
+    * @return KErrNone on success.
+    */
+    IMPORT_C TInt Exit();
+
+    /**
+	* Changes the current power save level.
+    * @param  aVal  New power save level
+    * @return KErrNone operation succeeded,
+    *         KErrNotSupported feature is not available.
+	*/
+    IMPORT_C TInt SetPowerSaveLevel(CPowerSaveDisplayMode::TPowerSaveLevel aVal);
+
+    /**
+	* Return the current power save level.
+    * @return TPowerSaveLevel
+	*/
+    IMPORT_C CPowerSaveDisplayMode::TPowerSaveLevel GetPowerSaveLevel();
+
+private:
+    /// Default constructor
+    CPowerSaveDisplayMode();
+    
+    /// Second phase constructor
+    void ConstructL(TInt aDisplayNumber);
+
+private:
+    /// Display driver pointer
+    TAny* iDisplayDriver;
+    };
+
+#endif // POWER_SAVE_DISPLAY_MODE_H
+
+// End of File