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      1 /* Copyright (C) 2010 The Android Open Source Project
      2 **
      3 ** This software is licensed under the terms of the GNU General Public
      4 ** License version 2, as published by the Free Software Foundation, and
      5 ** may be copied, distributed, and modified under those terms.
      6 **
      7 ** This program is distributed in the hope that it will be useful,
      8 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
      9 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     10 ** GNU General Public License for more details.
     11 */
     12 
     13 #ifndef _ANDROID_PROTOCOL_UI_COMMANDS_API_H
     14 #define _ANDROID_PROTOCOL_UI_COMMANDS_API_H
     15 
     16 /*
     17  * Contains the API for calling into the UI with the Core control commands.
     18  */
     19 
     20 /* Changes the scale of the emulator window at runtime.
     21  * Param:
     22  *  scale, is_dpi - New window scale parameters
     23  * Return:
     24  *  0 on success, or < 0 on failure.
     25  */
     26 extern int uicmd_set_window_scale(double scale, int is_dpi);
     27 
     28 /* This is temporary redeclaration for AndroidHwLightBrightnessFunc declared
     29  * in android/hw-control.h We redeclare it here in order to keep type
     30  * consistency between android_core_set_brightness_change_callback and
     31  * light_brightness field of AndroidHwControlFuncs structure.
     32  */
     33 typedef void  (*AndroidHwLightBrightnessCallback)(void* opaque,
     34                                                   const char* light,
     35                                                   int  brightness);
     36 
     37 /* Registers a UI callback to be called when brightness is changed by the core. */
     38 extern int uicmd_set_brightness_change_callback(AndroidHwLightBrightnessCallback callback,
     39                                                 void* opaque);
     40 
     41 #endif /* _ANDROID_PROTOCOL_UI_COMMANDS_API_H */
     42