sodimm slot

Application Development in Linux: Internal Process Communication of QT Http://www.lupaworld.com/tutorial-view-aid-7177.html As a cross-platform C ++-based GUI system, QT provides powerful functions for users to construct graphical user interfaces. Since the release of QT in 1996 by trolltech, the system has become the main system used by many successful graphic user applications in the world. More importantly, the Linux operating system's desktop environment system KDE is also constructed based

Both qwidget and its subclass can have a right-click menu, because qwidget has two functions related to the Right-click menu: Qt: contextmenupolicy () const Void setcontextmenupolicy (QT: contextmenupolicy Policy) Qt: contextmenupolicy enumeration types include QT: defaultcontextmenu, QT: nocontextmenu, QT: preventcontextmenu, QT: actionscontextmenu, and QT: customcontextmenu. The usage is as follows: 1) The default value is QT: defaultcontextmenu.It uses the context menu event contextmenuevent

Qt mail menu and location capturing Both qwidget and its subclass can have a right-click menu, because qwidget has two functions related to the Right-click menu: Qt: contextmenupolicy () const Void setcontextmenupolicy (QT: contextmenupolicy Policy) Qt: contextmenupolicy enumeration types include QT: defaultcontextmenu, QT: nocontextmenu, QT: preventcontextmenu, QT: actionscontextmenu, and QT: customcontextmenu. The usage is as follows: 1) The default value is QT: defaultcontextmenu.It uses the

The new thread run must contain exec calls. Otherwise, messages cannot be received. class myQThr : public QThread{Q_OBJECTpublic:myQThr(QObject *in = NULL):QThread(in){WrTimer = new QTimer(this);connect(WrTimer, SIGNAL(timeout()), this, SLOT(TimerOutWr1()), Qt::DirectConnection);WrTimer->start(2000);}void run(){exec();}private:QTimer *WrTimer;public slots:void TimerOutWr1(){int a = 100;}};#include "qt3.h"#include As long as it is a timer in the const

Note: The "early preview version" indicates that some functions of the software are implemented and previewed, and the existing functions are unstable. Major modifications may be made to later versions. You are welcome to report bugs and follow the updates. For version updates, see the mgen haiyunguo project. In the early preview version 1 of the haiyunguo project, only the use of selector and filter is demonstrated. After the early preview version 2, the execution subject of the entire consol

analyze it in the second part one by one. 1. Open QT creator, create a qt4 GUI application, set the project name to mycom, and use the default options for others. (Note: The created Project path cannot contain Chinese characters .) 2. Copy the six files mentioned above to the project directory, for example,. 3. Add these 6 files to the project. In QT creator, right-click the files in the left region and select Add existing files from the shortcut menu to add existing files. For example: Sel

First, let's talk about the background of the story. When we click a button or something like a control, we may want it to perform complicated operations, however, we do not want the program to be stuck there and wait for the execution of this complex operation to end. multithreading is required here. Although I still don't know how to use multithreading in QT, however, let's make it a summary for future reference. It is said that it is a good method to implement multithreading on many websites!

10.10.2.70:6300 PS: Redis-trib.rb is a ruby tool, encapsulated redis cluster of some commands, using this tool to operate the cluster is very convenient, such as the cluster initialization above, view the cluster status, and add, delete nodes, migration slot and other functions Iv. redis cluster maintenance A. Scenario 1 The online cluster has a bottleneck and needs to be resized. For example, we have prepared a master node and a slave node (10.10.2.

"Pusch (1)-type1 frequency hopping" mentioned why to use the Pusch hopping frequency, as well as detailed introduction of the TYPE1 mode of frequency hopping, this article continues this topic, introduces the TYPE2 mode of frequency hopping.1. Problems needing attention when using Pusch frequency hoppingIn the upstream sub-frame, the PUCCH channel is at the high and low sides of the bandwidth, or at the edge of the band, and the Pusch channel is in the middle of the bandwidth. The PUCCH channel

based on the given permissions. The named pipeline provides a relatively simple programming interface, making it easier to transmit data over the network than to communicate with two processes on the same computer. However, it cannot communicate with multiple processes at the same time.Email slot Mailslots provides one-way communication between processes. Any process can establish a mail slot as a mail

As a cross-platform C ++-based GUI system, QT provides powerful functions for users to construct graphical user interfaces. Since the release of QT in 1996 by trolltech, the system has become the main system used by many successful graphic user applications in the world. More importantly, the Linux operating system's desktop environment system KDE is also constructed based on QT. Currently, QT has provided support for MS/Windows, UNIX/X11 and embedded platform, and has been more and more widely

: v3.7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Protocol usage -------------- Detailed touch information is divided into multiple abs_mt event data packets for sending in order. Only the abs_mt event information is recognized as part of the touch packet, because these events are ignored in the current single-touch (ST) application, we can implement the MT protocol based on the st protocol in the existing driver. For the driver of the Type A device, use inp

Wireless Internet access is the current trend, and wireless network interfaces are also essential fashion. Today's rapid development, wireless network interfaces are also a wide variety of dazzling. If you still don't know what kinds of wireless NICs are available today, please read the following article. When 802.11n is officially approved, low-configuration laptops may only be compatible with 802.11a, 802.11b, or 802.11 GB, but cannot meet the new needs of the 802.11n era. At present, wireless

(). Trimmed ();} QString editdialog::number () const { return ui->numedit->toplaintext (). trimmed ();} void editdialog::setname (const QString name) {UI ->nameedit-> void editdialog::setnumber (const QString num) {UI ->numedit-> Then let's modify the slot of the corresponding button in the main window (modify slot to quickly switch to the implementation of the

resource allocation, while the use of dci1a, you can use both centralized resource allocation, or the use of distributed resource allocation. These two distributions are described in detail below.The downstream VRB has two resource mappings: the VRB Resource mapping method of the centralized (localized type) and the VRB Resource mapping for distributed (distributed type). regardless of the type of VRB mapping, the VRB refers to "RB pair" (a pair of vrbs). We know that a sub-frame consists of 2

bus and the slots on the CPU Board card. Where a represents the I/O bus, which is the bus type, a is 0 o'clock, represents the standard I/O bus, and A is 1 o'clock, which represents the selectable bus. b Specifies the slot number on the I/O bus, which is the position on the bus.2)CD: Indicates the slot, adapter number, where C represents the I/O motherboard that contains the adapter. If the adapter is in t

right-click menu (also its own unique signal) and is also easily overlooked by the qwidget signal:void customcontextmenurequested (const qpoint POS)The signal is issued condition is: User request ContextMenu (normal is the right mouse click) and the same time the widget Contextmenupolicy is qt::customcontextmenu.Note: POS is where the widget receives the right-click menu event, typically in the coordinate system of the part. However, for Qabstratscrollarea and its subclasses, the coordinate sy

client processes. Unlike an anonymous pipe, a named pipe can be used between unrelated processes and different computers. When the server creates a named pipe, a name is specified for it, any process can use this name to open the other end of the pipeline and communicate with the server process based on the given permissions. The named pipeline provides a relatively simple programming interface, making it easier to transmit data over the network than to communicate with two processes on th

loop, so we can move it to a thread that has the event loop turned on by the Movetothread () method. Very happy, we quickly encapsulated a timer class, containing a Qtimer and Qthread object, directly using the Qthread object is because my QT version is 4.8.3,run () is not a pure virtual function, the event loop is turned on by default. The main code is as follows:[CPP]View PlainCopyprint? #ifndef Qcustomtimer_h #define Qcustomtimer_h #include #include #include Class Qcu

Exchanger can be regarded as the synchronousqueue of two-way data transmission, that is, no producer and consumer, any two threads can exchange data.In JDK5, Exchanger is designed as a container with a capacity of 1, holding a waiting thread until another thread arrives to exchange data, then emptying the container until the next incoming thread.Starting with JDK6, Exchanger uses a segmented idea like Concurrentmap, which provides multiple slots, increasing the throughput of concurrent execution