http://www./simple/index.php?t4354.html 发现网上这种资料不多,但我发现这对初学者尤其重要,我刚刚接触Qtopia,编了个小程序,希望大家多多指正批评。 我觉得友善的应用程序不开源会增加我们的好奇心,我想这也是他们的初衷,哈哈 希望大家多多讨论,共同进步…… myled.h #ifndef _MYLED_H_ #define _MYLED_H_ #include <qwidget.h> class Myled : public QWidget { Q_OBJECT public: Myled( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 ); ~Myled() {}; public slots: // 自定义的槽 void runled(); private: void startled(); }; #endif // _MYLED_H_ myled.cpp #include <qpushbutton.h> #include <qtopia/qpeapplication.h> #include <unistd.h> #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <sys/ioctl.h> #include <sys/stat.h> #include <fcntl.h> #include "myled.h" Myled::Myled( QWidget* parent, const char* name, WFlags fl ) { startled(); } void Myled::startled() { QPushButton* quit = new QPushButton("START", this); //创建按钮 connect(quit, SIGNAL(clicked()), this, SLOT(runled())); //连接槽 } void Myled::runled() { volatile int i, j, k; int fd=::open("/dev/leds", 0); // 打开设备 for (k=0; k<4; k++) { ::ioctl(fd, 0, 1); for (i=0;i<30000;i++) for (j=0;j<500;j++); ::ioctl(fd, 1, 1); for (i=0;i<30000;i++) for (j=0;j<500;j++); } ::close(fd); // 关闭设备 } main.cpp #include "myled.h" #include <qtopia/qpeapplication.h> QTOPIA_ADD_APPLICATION("myled",Myled) QTOPIA_MAIN myled.pro CONFIG += qtopiaapp CONFIG -= buildQuicklaunch DESTDIR = $(QPEDIR)/bin HEADERS = myled.h SOURCES = myled.cpp SOURCES+=main.cpp TARGET = myled myled.desktop [Desktop Entry] Comment[]=A LED Program Exec=myled Icon=myled Type=Application Name=myled 将以上代码放到一个文件夹,然后从hello中copy来build,build一下就欧了 |
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