×
Namespaces

Variants
Actions
Revision as of 10:35, 20 October 2010 by flycarl (Talk | contribs)

用Qt控制音量键

From Nokia Developer Wiki
Jump to: navigation, search
Article Metadata
Tested with
Devices(s): Nokia N97, N8
Compatibility
Platform(s): S60 5th Edition symbian
Symbian
Article
Keywords: volume control
Created: (29 Mar 2010)
Last edited: flycarl (20 Oct 2010)

Contents

Overview

由于QT中还没有提供对音量键的响应,需要使用symbian Remote control API 控制 音量键。

参照Qt和Symbian C++的混合编程TSS000432 - Utilising media keys

文件夹volumeKey中的 VolumeKey 类提供了一个VolumeKeyPressed( int )信号, 当按音量键 下时 有信号EVolumeDown当按音量键 上时 有信号EVolumeUp, 由此可以在程序中控制音量。

使用了QtMobility的multimedia 来播放声音,在代码中设置一个手机中的歌曲名。播放后按音量键可以观察到音量变化。


Download

File:PlayerVolumeKey.zip

Planed updates

History

20 October 2010 第一版,直接参照 TSS000432 - Utilising media keys
258 page views in the last 30 days.
×