Qt 隐藏标题栏 窗口移动 鼠标事件

时间:2022-01-21 17:55:54

  • 摘要
    • 隐藏标题栏
    • 头文件声明鼠标移动虚函数
    • .cpp文件实现功能
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setWindowFlags(Qt::FramelessWindowHint | windowFlags());

无标题栏移动窗体的实现

头文件声明虚函数

  • widget.h
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#define WIDGET_H

#include <QWidget>
#include <a.out.h>

namespace Ui {
class ;
}

class : public QWidget
{
Q_OBJECT

public:
explicit (QWidget *parent = 0);
~Widget();

protected:
virtual void mousePressEvent(QMouseEvent *event);
virtual void mouseMoveEvent大专栏  Qt 隐藏标题栏 窗口移动 鼠标事件an>(QMouseEvent *event); // 移动
virtual void mouseReleaseEvent(QMouseEvent *event); // 鼠标释放
private:
Ui::Widget *ui;
bool m_pressed; // 判断鼠标左键是否按下
QPoint m_pos; // 鼠标相对于窗口的位置,不是相对屏幕的位置
};

#endif // WIDGET_H

头文件实现虚函数

  • widget.cpp
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void Widget::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton)
{
m_pressed = true;
m_pos = event->pos();
}
}

void Widget::mouseMoveEvent(QMouseEvent *event)
{
if(m_pressed)
{
move(event->pos() - m_pos this->pos());
}
}

void Widget::mouseReleaseEvent(QMouseEvent *event)
{
Q_UNUSED(event); // avoid the warnning that 'event' is unused while building the project

m_pressed = false;
}