qt无边框窗口(支持窗口可以移动)

#include "borderless.h" #include "ui_borderless.h" Borderless::Borderless(QWidget *parent) : QWidget(parent) , ui(new Ui::Borderless) { ui->setupUi(this); this->setWindowFlags(Qt::FramelessWindowHint); // 设置为无边框窗口 } Borderless::~Borderless() { delete ui; } void Borderless::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { mouseStartPosition = event->globalPos() - frameGeometry().topLeft(); mouseDragging = true; // 开启拖动状态 } } void Borderless::mouseMoveEvent(QMouseEvent *event) { if (mouseDragging) { // 移动窗口 move(event->globalPos() - mouseStartPosition); } } void Borderless::mouseReleaseEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { mouseDragging = false; // 关闭拖动状态 } }