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Add Chapter13(Appendix)
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‎Chapter10/HelloQt/.qmake.stash‎

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QMAKE_CXX.INCDIRS = \
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/usr/include/c++/8 \
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/usr/include/arm-linux-gnueabihf/c++/8 \
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/usr/include/c++/8/backward \
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/usr/lib/gcc/arm-linux-gnueabihf/8/include \
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/usr/local/include \
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/usr/lib/gcc/arm-linux-gnueabihf/8/include-fixed \
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/usr/include/arm-linux-gnueabihf \
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/usr/include
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QMAKE_CXX.LIBDIRS = \
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/usr/lib/gcc/arm-linux-gnueabihf/8 \
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/usr/lib/arm-linux-gnueabihf \
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/usr/lib \
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/lib/arm-linux-gnueabihf \
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/lib
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QMAKE_CXX.QT_COMPILER_STDCXX = 201402L
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QMAKE_CXX.QMAKE_GCC_MAJOR_VERSION = 8
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QMAKE_CXX.QMAKE_GCC_MINOR_VERSION = 3
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QMAKE_CXX.QMAKE_GCC_PATCH_VERSION = 0
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QMAKE_CXX.COMPILER_MACROS = \
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QT_COMPILER_STDCXX \
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QMAKE_GCC_MAJOR_VERSION \
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QMAKE_GCC_MINOR_VERSION \
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QMAKE_GCC_PATCH_VERSION

‎Chapter10/HelloQt/HelloQt.pro‎

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#-------------------------------------------------
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#
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# Project created by QtCreator 2019-10-21T07:19:32
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#
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#-------------------------------------------------
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QT += core gui
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greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
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TARGET = HelloQt
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TEMPLATE = app
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# The following define makes your compiler emit warnings if you use
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# any feature of Qt which has been marked as deprecated (the exact warnings
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# depend on your compiler). Please consult the documentation of the
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# deprecated API in order to know how to port your code away from it.
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DEFINES += QT_DEPRECATED_WARNINGS
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# You can also make your code fail to compile if you use deprecated APIs.
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# In order to do so, uncomment the following line.
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# You can also select to disable deprecated APIs only up to a certain version of Qt.
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#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
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CONFIG += c++11
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SOURCES += \
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main.cpp \
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widget.cpp
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HEADERS += \
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widget.h
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FORMS += \
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widget.ui
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# Default rules for deployment.
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qnx: target.path = /tmp/$${TARGET}/bin
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else: unix:!android: target.path = /opt/$${TARGET}/bin
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!isEmpty(target.path): INSTALLS += target

‎Chapter10/HelloQt/Makefile‎

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‎Chapter10/HelloQt/main.cpp‎

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#include "widget.h"
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#include <QApplication>
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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Widget w;
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w.show();
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return a.exec();
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}

‎Chapter10/HelloQt/widget.cpp‎

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#include "widget.h"
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#include "ui_widget.h"
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Widget::Widget(QWidget *parent) :
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QWidget(parent),
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ui(new Ui::Widget)
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{
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ui->setupUi(this);
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}
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Widget::~Widget()
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{
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delete ui;
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}
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void Widget::on_lineEdit_textChanged(const QString &arg1)
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{
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ui->spinBox->blockSignals(true);
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ui->dial->setValue(arg1.toInt());
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ui->spinBox->blockSignals(false);
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}

‎Chapter10/HelloQt/widget.h‎

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#ifndef WIDGET_H
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#define WIDGET_H
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#include <QWidget>
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namespace Ui {
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class Widget;
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}
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class Widget : public QWidget
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{
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Q_OBJECT
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public:
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explicit Widget(QWidget *parent = nullptr);
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~Widget();
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private slots:
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void on_lineEdit_textChanged(const QString &arg1);
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private:
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Ui::Widget *ui;
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};
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#endif // WIDGET_H

‎Chapter10/HelloQt/widget.ui‎

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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>Widget</class>
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<widget class="QWidget" name="Widget">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>400</width>
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<height>300</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>Widget</string>
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</property>
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<layout class="QVBoxLayout" name="verticalLayout">
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<item>
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<widget class="QDial" name="dial">
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<property name="wrapping">
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<bool>true</bool>
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</property>
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<property name="notchesVisible">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QSlider" name="horizontalSlider">
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<property name="orientation">
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<enum>Qt::Horizontal</enum>
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</property>
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<property name="tickPosition">
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<enum>QSlider::TicksBothSides</enum>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QSpinBox" name="spinBox">
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<property name="wrapping">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout">
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<item>
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<widget class="QLabel" name="label">
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<property name="text">
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<string>&amp;Value</string>
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</property>
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<property name="buddy">
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<cstring>lineEdit</cstring>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QLineEdit" name="lineEdit">
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<property name="inputMask">
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<string>99</string>
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</property>
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</widget>
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</item>
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</layout>
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</item>
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<item>
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<spacer name="verticalSpacer">
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<property name="orientation">
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<enum>Qt::Vertical</enum>
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</property>
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<property name="sizeType">
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<enum>QSizePolicy::Maximum</enum>
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</property>
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<property name="sizeHint" stdset="0">
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<size>
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<width>20</width>
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<height>20</height>
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</size>
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</property>
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</spacer>
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</item>
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<item>
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<widget class="QPushButton" name="pushButton">
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<property name="text">
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<string>&amp;Quit</string>
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</property>
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</widget>
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</item>
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</layout>
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</widget>
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<layoutdefault spacing="6" margin="11"/>
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<resources/>
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<connections>
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<connection>
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<sender>dial</sender>
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<signal>valueChanged(int)</signal>
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<receiver>horizontalSlider</receiver>
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<slot>setValue(int)</slot>
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<hints>
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<hint type="sourcelabel">
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<x>65</x>
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<y>68</y>
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</hint>
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<hint type="destinationlabel">
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<x>73</x>
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<y>124</y>
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</hint>
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</hints>
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</connection>
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<connection>
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<sender>horizontalSlider</sender>
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<signal>valueChanged(int)</signal>
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<receiver>spinBox</receiver>
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<slot>setValue(int)</slot>
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<hints>
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<hint type="sourcelabel">
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<x>122</x>
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<y>126</y>
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</hint>
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<hint type="destinationlabel">
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<x>120</x>
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<y>155</y>
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</hint>
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</hints>
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</connection>
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<connection>
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<sender>spinBox</sender>
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<signal>valueChanged(int)</signal>
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<receiver>dial</receiver>
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<slot>setValue(int)</slot>
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<hints>
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<hint type="sourcelabel">
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<x>240</x>
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<y>153</y>
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</hint>
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<hint type="destinationlabel">
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<x>246</x>
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<y>96</y>
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</hint>
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</hints>
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</connection>
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<connection>
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<sender>spinBox</sender>
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<signal>valueChanged(QString)</signal>
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<receiver>lineEdit</receiver>
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<slot>setText(QString)</slot>
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<hints>
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<hint type="sourcelabel">
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<x>187</x>
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<y>162</y>
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</hint>
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<hint type="destinationlabel">
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<x>198</x>
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<y>197</y>
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</hint>
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</hints>
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</connection>
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<connection>
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<sender>pushButton</sender>
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<signal>clicked()</signal>
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<receiver>Widget</receiver>
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<slot>close()</slot>
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<hints>
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<hint type="sourcelabel">
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<x>41</x>
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<y>265</y>
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</hint>
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<hint type="destinationlabel">
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<x>27</x>
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<y>236</y>
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</hint>
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</hints>
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</connection>
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</connections>
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</ui>

‎Chapter10/HelloWorld/.gitignore‎

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# This file is used to ignore files which are generated
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# ----------------------------------------------------------------------------
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*~
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*.autosave
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*.a
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*.core
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*.moc
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*.o
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*.obj
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*.orig
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*.rej
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*.so
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*.so.*
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*_pch.h.cpp
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*_resource.rc
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*.qm
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.#*
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*.*#
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core
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!core/
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tags
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.DS_Store
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.directory
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*.debug
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Makefile*
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*.prl
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*.app
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moc_*.cpp
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ui_*.h
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qrc_*.cpp
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Thumbs.db
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*.res
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*.rc
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/.qmake.cache
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/.qmake.stash
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# qtcreator generated files
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*.pro.user*
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# xemacs temporary files
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*.flc
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# Vim temporary files
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.*.swp
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# Visual Studio generated files
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*.ib_pdb_index
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*.idb
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*.ilk
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*.pdb
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*.sln
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*.suo
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*.vcproj
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*vcproj.*.*.user
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*.ncb
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*.sdf
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*.opensdf
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*.vcxproj
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*vcxproj.*
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# MinGW generated files
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*.Debug
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*.Release
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# Python byte code
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*.pyc
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# Binaries
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# --------
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*.dll
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*.exe
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‎Chapter10/HelloWorld/HelloWorld.pro‎

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TEMPLATE = app
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CONFIG += console
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CONFIG -= app_bundle
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CONFIG -= qt
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SOURCES += \
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main.c

‎Chapter10/HelloWorld/main.c‎

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#include <stdio.h>
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int main()
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{
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printf("Hello World!\n");
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return 0;
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}

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