前面已经有了在framebuffer下的遥控器支持，现在用相同的办法移植到directfb模式/*dfbRemotecontrol.h*******DfbRemoteControl类*/#include <QObject>class QTimer;class DfbRemoteControl : public QObject { Q_OBJECTpublic: DfbRemoteControl();signals: void DfbRemoteToKeyboardSignal(unsigned long keyCode);private slots: void onTimer();private: QTimer *readTimer;};#endif/*dfbRemotecontrol.cpp*/#include <QTimer>#include "dfbRemotecontrol.h"DfbRemoteControl::DfbRemoteControl(){ readTimer = new QTimer(this); connect(readTimer, SIGNAL(timeout()), this, SLOT(onTimer())); readTimer->start(30);}void DfbRemoteControl::onTimer(){ int ret; unsigned long keyCode; ret = getKeycode(); if (ret == 0)/*ok*/ { qDebug("emit keyCode=%X/n", keyCode); emit DfbRemoteToKeyboardSignal(keyCode); } else { } readTimer->start(10);}将这两个文件加入放到src/plugins/gfxdrivers/directfb目录下,并在src/gui/embedded/directfb.pri中加入: HEADERS += $$QT_SOURCE_TREE/src/plugins/gfxdrivers/directfb/dfbRemotecontrol.h SOURCES += $$QT_SOURCE_TREE/src/plugins/gfxdrivers/directfb/dfbRemotecontrol.cpp在qdirectfbkeyboard.cpp中的class QDirectFBKeyboardHandlerPrivate中加入public方法int dfbRemote2key(char *keycode, unsigned long remoteCode);加入slot方法void dfbRecvRemoteEvent(unsigned long remoteCode);连接信号和槽：if(dfbRemotecontrol == NULL){ dfbRemotecontrol = new DfbRemoteControl();} connect(dfbRemotecontrol, SIGNAL(DfbRemoteToKeyboardSignal(unsigned long)),this,SLOT(dfbRecvRemoteEvent(unsigned long)));方法int QDirectFBKeyboardHandlerPrivate::dfbRemote2key(char *keycode, unsigned long remoteCode)取得遥控器所对应的键盘的值而真正进行键值处理的函数为handler->processKeycode。
