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Install Qt5 (1) and install qt5 Qt4.8 was installed before zookeeper, but a problem persists. I want to add an ICon in front of each item in the menu. The QAction is used for menu entries, but the ICon icons used by QAction cannot be displayed, after running, the icon is left blank, but the icon cannot be displayed. at first, I thought the implementation of my own code was wrong. So I tried both methods o

Qt5 is released and packaged under win7 and released under qt5win7 When QT5 is released, it is no longer dependent on the dynamic link library (dll). However, QT5 Dynamic Link Libraries seem to have two sets, such as Qt5Core (for realese) and Qt5Cored (for debug ), everything ends with the link library required by the debug file. A about release 1. First, we nee

In QT5, calculate the sum and output of two input values, and qt5 outputs. 1. Put two inputs lineEdit, one output TextBrowser, and one PushButton on the UI (used to sum keys ), 2. Open the. h file and add the declaration code of the slot function to the class ,; 3. Open the. cpp file and write the slot function code at the bottom of the file ,; To convert the QString type to the basic data type (int), a

The Qt5 control triggers the problem solution of the slot function during initialization. qt5 triggers In programming, such as the QSpinBox control and QComboBox control, when initializing the value range and content of the control, a signal is often triggered to call the corresponding slot function. This is often not the result we want. Solution: It can trigger the signal of the control and call the slo

QT5-control-QLineEdit-text input control, used to enter the password or something is good, you can do not move the cursor like Linux Login Oh, qt5 -- qlineedit- #ifndef MAINWINDOW_H#define MAINWINDOW_H#include # Include "mainwindow. h "MainWindow: MainWindow (QWidget * parent): QMainWindow (parent) {this-> resize (400,400); this-> centralWidget (); int ypos = 30; for (int I = 0; I #include "mainwindow.h"#

My QT5 learning path (2) -- the first program, the first qt5 learning pathI. Preface "To do something better, you must first sharpen the tool." in the previous section, I introduced the installation and configuration methods of Qt and set up a basic development platform. In this section, we will use a simple example to understand the Qt programming style and specifications ~~~ 2. The first program-Hello Wor

Basic knowledge of qt5, qt5 QWidget wQLineEdit edit; Edit. show (); // if no such sentence exists, the edit box is displayed in the upper left corner of the parent window.Edit. setParent ( w); // use w as the parent window and display it aboveW. show ();Qconnect ( button, SIGNAL (clicked (), w, SLOT (close (); // click the button to close the w window. W is an object and w is a window.Exclusive QLineEdit u

Qt5-control-QRadioButton-single choice button-used to select one from multiple options-single choice artifact, qt5 -- qradiobutton- #ifndef MAINWINDOW_H#define MAINWINDOW_H#include # Include "mainwindow. h "MainWindow: MainWindow (QWidget * parent): QMainWindow (parent) {this-> resize (400,300); this-> centralWidget (); QString str0 [] = {"laptop", "phone", "Printer"}; QString str1 [] = {"radish", "cabbage

Qt5-control-QMenu, QMenuBar-menu bar details-menu hotkey-menu verification function, qt5-qmenu #ifndef MAINWINDOW_H#define MAINWINDOW_H#include # Include "mainwindow. h "# include #include "mainwindow.h"#include

QT5-control-QTimeEdit and QTime, qt5 -- qtimeedit #ifndef MAINWINDOW_H#define MAINWINDOW_H#include # Include "mainwindow. h "# include #include "mainwindow.h"#include

QT5 controls-QDateTimeEdit and QDateTime class, qt5-qdatetimeedit #ifndef MAINWINDOW_H#define MAINWINDOW_H#include # Include "mainwindow. h "MainWindow: MainWindow (QWidget * parent): QMainWindow (parent) {this-> resize (400,300 ); // display the date and time in the specified format dt [0] = new QDateTimeEdit (QDateTime: currentDateTime (), this ); dt [0]-> setDisplayFormat ("yyyy-MM-dd hh: mm: ss: zzz");

Showwidget.h/*** Book: "QT5 Development and examples" * Function: Implement a simple text editor * file: showwidget.h* time: January 18, 2015 10:03:21* Author: cutter_point*/#ifndef showwidget_h# Define Showwidget_h#include Showwidget.cpp/*** Book: "QT5 Development and examples" * Function: Implement a simple text edit

This article is reproduced from http://hi.baidu.com/xchinux/item/9044d8ce986accbb0d0a7b87First, to change a QT4 project to QT5 encountered problemsThe QT4 project was previously developed using Qt4.7.4 MSVC2008 because of the use of OWC10 (Office Web components), Using the MSVC compiler would not be able to upgrade to qt4.8.x and QT5, so the compiler was converted to MINGW4.7,QT upgrade to 4.8.4. Today the

This program is mainly to learn about the tool box class, where 3 tool boxes are used and then added to the entire interface,are: Friends (good Friend), strangers (Do not Remember), blacklist (black items) Haha, forgive me this is not good English, understand me.Implementation diagram:Code:Drawer.h/*** Book: "QT5 Development and examples" * function: Realize a own QQ interface * File: drawer.cpp* time: Janu

I do this do not know why there are two features can not be displayed, and no error, I temporarily do not think of any good way = =Achieve goalsPalette.h/*** Book: "QT5 Development and examples" * Function: Implement palette usage qpalette* file: paletee.h* time: January 3, 2015 12:21:53* Author: cutter_point*/#ifndef palette_h# Define Palette_h#include Palette.cpp/***