本文详细的介绍了QSlider、QHorizontalSlider、QVerticalSlider控件的各种操作，例如：新建界面、设置刻度显示、设置范围值、设置值、获取值、设置步长、刻度间隔、改变方向、滑动信号、按下信号、滑动信号、释放滑块、样式表等操作。

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QT QSlider、QHorizontalSlider、QVerticalSlider 控件 使用详解目录

1 新建界面

2 设置刻度显示

 3 设置范围值

 4 设置值

 5 获取值

6 设置步长

 7 刻度间隔

8 改变方向

9 滑动信号

 10 按下信号

11 滑动信号

12 释放滑块

13 .h

14 .cpp

15 样式表

16 其它文章 ：

1 新建界面

2 设置刻度显示

刻度位置

QSlider::TickPosition，这个枚举指定刻度线相对于滑块和用户操作的位置。

/* 可以使用 QSlider:: 来进行不同方向的刻度设置 */
ui->horizontalSlider->setTickPosition(QSlider::TicksBelow);
ui->verticalSlider->setTickPosition(QSlider::TicksRight);

 3 设置范围值

ui->horizontalSlider->setMaximum(100);
ui->horizontalSlider->setMinimum(0);ui->verticalSlider->setMaximum(1000);
ui->verticalSlider->setMinimum(0);

 4 设置值

ui->horizontalSlider->setValue(50);
ui->verticalSlider->setValue(500);

 5 获取值

strText = QString::number(ui->horizontalSlider->value()) + " , " + QString::number(ui->verticalSlider->value());
QMessageBox::information(this,"数值",strText);

6 设置步长

ui->horizontalSlider->setTickInterval(10);
ui->verticalSlider->setTickInterval(100);

 7 刻度间隔

        刻度间隔通过setSingleStep函数来设置，但是我这边设置后不起作用，感觉这个函数可能和 6 设置步长 有冲突或者弃用有关

ui->horizontalSlider->setSingleStep(20);
ui->verticalSlider->setSingleStep(500);

8 改变方向

//Qt::Horizontal      // 水平方向
//Qt::Vertical      //垂直方向
//    ui->horizontalSlider->setOrientation(Qt::Vertical);
//    ui->verticalSlider->setOrientation(Qt::Horizontal);

改变前：

改变后：

9 滑动信号

private slots:void setHorValue(int value);void setVerValue(int value);connect(ui->horizontalSlider, SIGNAL(valueChanged(int)), SLOT(setHorValue(int)));connect(ui->verticalSlider, SIGNAL(valueChanged(int)), SLOT(setHorValue(int)));void MainWindow::setHorValue(int value)
{qDebug() << value;
}
void MainWindow::setVerValue(int value)
{qDebug() << value;
}

 10 按下信号

private slots:void getHorPressed();void getVerPressed();connect(ui->horizontalSlider, SIGNAL(sliderPressed()), SLOT(getHorPressed()));connect(ui->verticalSlider, SIGNAL(sliderPressed()), SLOT(getVerPressed()));void MainWindow::getHorPressed()
{qDebug() << "horizontalSlider 按下了滑块！";
}void MainWindow::getVerPressed()
{qDebug() << "verticalSlider 按下了滑块！";
}

11 滑动信号

private slots:void getHorMoved(int value);void getVerMoved(int value);connect(ui->horizontalSlider, SIGNAL(sliderMoved(int)), SLOT(getHorMoved(int)));connect(ui->verticalSlider, SIGNAL(sliderMoved(int)),  SLOT(getVerMoved(int)));void MainWindow::getHorMoved(int value)
{qDebug() << "horizontalSlider 拖动了滑块！ " << value;
}
void MainWindow::getVerMoved(int value)
{qDebug() << "verticalSlider 拖动了滑块！ " << value;
}

12 释放滑块

private slots:void getHorReleased();void getVerReleased();connect(ui->horizontalSlider, SIGNAL(sliderReleased()), this, SLOT(getHorReleased()));connect(ui->verticalSlider, SIGNAL(sliderReleased()), this, SLOT(getVerReleased()));void MainWindow::getHorReleased()
{qDebug() << "horizontalSlider 释放了滑块！ ";
}
void MainWindow::getVerReleased()
{qDebug() << "verticalSlider 释放了滑块！ ";
}

13 .h

/******************************************************************************* Copyright CSDN 双子座断点 Co., Ltd.* Copyright www.dreambeging.vip Co., Ltd.* All right reserved. See COPYRIGHT for detailed Information.** @file       mainwindow.h* @project    QHorizontalSlider_Test* @version    V 1.0** @author     断点* @date       2022/12/08* @history*****************************************************************************/
#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include 
#include 
#include 
#include >QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE
#pragma execution_character_set("utf-8")
class MainWindow : public QMainWindow
{Q_OBJECTpublic:MainWindow(QWidget *parent = nullptr);~MainWindow();QString Title;QString Version;QString BlogText;QString strText;private slots:void on_pushButton_clicked();void on_pushButton_2_clicked();void setHorValue(int value);void setVerValue(int value);void getHorPressed();void getVerPressed();void getHorMoved(int value);void getVerMoved(int value);void getHorReleased();void getVerReleased();private:Ui::MainWindow *ui;QSlider *pSlider;
};
#endif // MAINWINDOW_H

14 .cpp

/******************************************************************************* Copyright CSDN 双子座断点 Co., Ltd.* Copyright www.dreambeging.vip Co., Ltd.* All right reserved. See COPYRIGHT for detailed Information.** @file       mainwindow.cpp* @project    QHorizontalSlider_Test* @version    V 1.0** @author     断点* @date       2022/12/08* @history*****************************************************************************/#include "mainwindow.h"
#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent): QMainWindow(parent), ui(new Ui::MainWindow)
{ui->setupUi(this);Title = "QT QSlider、QHorizontalSlider、QVerticalSlider CSDN 双子座断点 ";Version = "V 1.0 ";BlogText = "https://blog.csdn.net/qq_37529913?type=lately/";setWindowTitle(Title + Version + BlogText);ui->horizontalSlider->setMaximum(100);ui->horizontalSlider->setMinimum(0);ui->verticalSlider->setMaximum(1000);ui->verticalSlider->setMinimum(0);ui->horizontalSlider->setValue(50);ui->verticalSlider->setValue(500);ui->horizontalSlider->setTickPosition(QSlider::TicksBelow);ui->verticalSlider->setTickPosition(QSlider::TicksRight);ui->horizontalSlider->setTickInterval(10);ui->verticalSlider->setTickInterval(100);//    ui->horizontalSlider->setSingleStep(20);
//    ui->verticalSlider->setSingleStep(500);//Qt::Horizontal      // 水平方向//Qt::Vertical      //垂直方向//ui->horizontalSlider->setOrientation(Qt::Vertical);//ui->verticalSlider->setOrientation(Qt::Horizontal);connect(ui->horizontalSlider, SIGNAL(valueChanged(int)), SLOT(setHorValue(int)));connect(ui->verticalSlider, SIGNAL(valueChanged(int)), SLOT(setHorValue(int)));connect(ui->horizontalSlider, SIGNAL(sliderPressed()), SLOT(getHorPressed()));connect(ui->verticalSlider, SIGNAL(sliderPressed()), SLOT(getVerPressed()));connect(ui->horizontalSlider, SIGNAL(sliderMoved(int)), SLOT(getHorMoved(int)));connect(ui->verticalSlider, SIGNAL(sliderMoved(int)),  SLOT(getVerMoved(int)));connect(ui->horizontalSlider, SIGNAL(sliderReleased()), this, SLOT(getHorReleased()));connect(ui->verticalSlider, SIGNAL(sliderReleased()), this, SLOT(getVerReleased()));}MainWindow::~MainWindow()
{delete ui;
}void MainWindow::getHorReleased()
{qDebug() << "horizontalSlider 释放了滑块！ ";
}
void MainWindow::getVerReleased()
{qDebug() << "verticalSlider 释放了滑块！ ";
}void MainWindow::getHorMoved(int value)
{qDebug() << "horizontalSlider 拖动了滑块！ " << value;
}
void MainWindow::getVerMoved(int value)
{qDebug() << "verticalSlider 拖动了滑块！ " << value;
}void MainWindow::getHorPressed()
{qDebug() << "horizontalSlider 按下了滑块！";
}
void MainWindow::getVerPressed()
{qDebug() << "verticalSlider 按下了滑块！";
}void MainWindow::setHorValue(int value)
{qDebug() << value;
}
void MainWindow::setVerValue(int value)
{qDebug() << value;
}void MainWindow::on_pushButton_clicked()
{strText = QString::number(ui->horizontalSlider->value()) + " , " + QString::number(ui->verticalSlider->value());QMessageBox::information(this,"数值",strText);
}void MainWindow::on_pushButton_2_clicked()
{QMessageBox::information(this,"数值",QString::number(ui->verticalSlider->value()));
}

15 样式表

QT 控件重绘_双子座断点的博客-CSDN博客_qt 重绘

QT 样式表_双子座断点的博客-CSDN博客

QT 样式表属性完整版_双子座断点的博客-CSDN博客

Qt 系统字体_双子座断点的博客-CSDN博客

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QT TextEdit控件_双子座断点的博客-CSDN博客_qt textedit

QT QComboBox使用详解_双子座断点的博客-CSDN博客

QT QtableView操作详解_双子座断点的博客-CSDN博客_qtableview增删改查

Qt QStandardItemModel(1.超级详细用法)_双子座断点的博客-CSDN博客_qstandardmodel

Qt QStandardItemModel(2.超级详细函数)_双子座断点的博客-CSDN博客_qstandarditemmodel点击事件

QT QRadioButton使用详解_双子座断点的博客-CSDN博客_qt radiobutton

QT QLineEdit使用详解_双子座断点的博客-CSDN博客_qt qlineedit

Qt QMessageBox使用详解_双子座断点的博客-CSDN博客_qt message

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