#ifndefQT_DEBUG//<== Please note... if not defined//Some codes#endif 也就是说,Qt提供了针对Debug和Release模式的条件编译宏,分别对应QT_DEBUG和QT_NO_DEBUG 1、检查Debug模式,可以采用类似如下的代码: 代码语言:javascript 复制 #ifdefQT_DEBUG//Some codes#endif 或者: 代码语言:javascript 复制 #ifndef...
QString str="(.*)=(.*)";QRegExprx_1(str);QString str_1=("a=100");int pos=rx_1.indexIn(str_1);if(pos>=0){qDebug()<<rx_1.matchedLength();//5qDebug()<<rx_1.capturedTexts();//("a=100", "a", "100")qDebug()<<rx_1.cap(0);//"a=100"qDebug()<<rx_1.cap(1)...
qDebug()<<"已经找到解码器:"<<m_HardwareName<<"其枚举值:"<<type; //2. 打开多媒体流,并且获取一些信息 if (avformat_open_input(&input_ctx,m_MediaFile.data(), NULL, NULL) != 0) { qDebug()<<"无法打开输入文件:"<<m_MediaFile; return -1; } //3. 读取媒体文件的数据包以获取流信...
//点击新建按钮 弹出一个对话框connect(ui->actionnew,&QAction::triggered,[=](){//文件对话框 参数1 父亲 参数2 标题 参数3 默认打开路径 参数4 过滤文件格式//返回值是选取文件的路径QString str = QFileDialog::getOpenFileName(this,"打开文件","E:\\桌面文件","(*.txt)");qDebug() << str;}...
Debug() << str;}}//鼠标释放void myLabel::mouseReleaseEvent (QMouseEvent *ev){if(ev->button() == Qt::LeftButton){QString str = QString("鼠标释放了 x=%1 y=%2 globalX = %3 globalY = %4").arg(ev->x()).arg(ev->y()).arg(ev->globalX()).arg(ev->globalY());qDebug...
if (App::DebugTcpClient) { int count = App::Keys.count(); for (int i = 0; i < count; i++) { if (App::Keys.at(i) == buffer) { sendData(App::Values.at(i)); break; } } } } void frmUdpClient::readData() { QHostAddress host; ...
foreach(QHostAddress address,info.addresses()){if(address.protocol() == QAbstractSocket::IPv4Protocol)qDebug()<
47. 多种预定义变量 #if (defined webkit) || (defined webengine),去掉生成空的debug和release目录 CONFIG -= debug_and_release。 48. 新版的Qtcreator增强了语法检查,会弹出很多警告提示等,可以在插件列表中关闭clang打头的几个即可,Help》About Plugins。也可以设置代码检查级别,Tools》Options 》C++ 》Code ...
{WorkerW=FindWindowExA(nullptr,WorkerW,"WorkerW","");DefView=FindWindowExA(WorkerW,nullptr,"SHELLDLL_DefView","");if(DefView)break;}HWND WorkerW1=FindWindowExA(nullptr,WorkerW,"WorkerW","");qDebug()<<"DefView句柄="<<DefView;if(WorkerW1){SetParent((HWND)pWidget->winId(),WorkerW1);}}嵌入...
qDebug(qLcTsLib)<<"Initializing tslib plugin"<< key <<specification; setObjectName(QLatin1String("TSLib Mouse Handler"));m_dev= ts_setup(nullptr,1);--打开触摸屏设备,返回句柄m_dev。if(!m_dev) { qErrnoWarning(errno,"ts_setup() failed");return; ...