*/Q_ASSERT(c->sender==q_ptr);if(!connectionLists)connectionLists=newQObjectConnectionListVector();if(signal>=connectionLists->count())connectionLists->resize(signal+1);ConnectionList&connectionList=(*connectionLists)[signal];if(connectionList.last){connectionList.last->nextConnectionList=c;}else{co...
static QMetaObject::Connection connect(const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType = Qt::AutoConnection); 可以看到,这里面确实只利用了前面包装的字符串——即函数名,问题是,你见过 C++ 中有如下的调用吗? 代码语言:c++ 复制 pMyclass-...
在QCoreApplication::exec()中会去创建一个QEventLoop对象,而在QEventLoop::exec()函数中会通过QEventLoop::processEvents()函数循环调用操作系统底层的事件分发接口去获取操作系统事件,封装为QEvent,这个过程中也会绑定事件的目标QObject对象(即事件的接收者)。 上述和操作系统相关的事件,其事件队列其实是属于操作系...
CC++QtToolBar菜单栏组件应用 CC++QtToolBar菜单栏组件应⽤ ToolBar⼯具栏在所有窗体应⽤程序中都⼴泛被使⽤，使⽤ToolBar可以很好的规范菜单功能分类，⽤户可根据菜单栏来选择不同的功能，Qt 中默认⾃带ToolBar组件，当我们以默认⽅式创建窗体时，ToolBar就被加⼊到了窗体中，⼀般是以QToolBa...
object.cpp#include"object.h"#include<string.h>//调用strcmp函数需要包含voidMetaObject::activate(Object *sender,intidx,void**argv){//在信号槽对应关系的mp中找到发送者idx索引信号对应的接收者及关联方法的调用autoptr = sender->mp.equal_range(idx);for(autoit = ptr.first; it != ptr.second; it++...
#if defined(Q_WS_QWS) class QDecoration; #endif class QApplication; class QApplicationPrivate; 模板类的前向声明还是头一次见到:template <typename T> class QList;现在不会用……以后研究,看样子Qt的源码真的非常复杂哦。 看下接下来的部分: ...
static_cast<Qt::ConnectionType>(type ^ Qt::UniqueConnection); } // 创建一个新的连接 std::unique_ptr<QObjectPrivate::Connection> c{new QObjectPrivate::Connection}; c->sender = s; c->signal_index = signal_index; QThreadData *td = r->d_func()->threadData; td->ref(); c->...
voidzp_net_Engine::on_New_Arrived_Client(qintptr socketDescriptor){zp_netListenThread*pSource=qobject_cast<zp_netListenThread*>(sender());if(!pSource){emitevt_Message(this,"Warning>"+QString(tr("Non-zp_netListenThread type detected.")));return;}emitevt_Message(this,"Info>"+QString(tr...
connect(socket, &QTcpSocket::readyRead, this, &HttpServer::socketReadyRead); connect(socket, &QTcpSocket::disconnected, this, &HttpServer::socketDisconnected); } private slots: void socketReadyRead() { QTcpSocket *socket = qobject_cast<QTcpSocket *>(sender()); ...
Q_OBJECT public: Widget(QWidget *parent =0); ~Widget(); private: QSharedMemory sharememory; privateslots: voidWriteShareMemory(); }; #endif// WIDGET_H Widget.cpp文件: #include'Widget.h' #include<QBuffer> #include<QDebug> #include<QDataStream> ...