大概就这几种，

按左键右键

void QtWidgetsApplication7::mousePressEvent(QMouseEvent *event)
{//如果是鼠标左键按下if (event->button() == Qt::LeftButton) {QCursor cursor;cursor.setShape(Qt::ClosedHandCursor);QApplication::setOverrideCursor(cursor);offset = event->globalPos() - pos();}else if (event->button() == Qt::RightButton) {QCursor cursor(QPixmap(":/res/mouse.png"));QApplication::setOverrideCursor(cursor);}
}

释放事件

void QtWidgetsApplication7::mouseReleaseEvent(QMouseEvent *event)
{//释放事件QApplication::restoreOverrideCursor();
}

双击事件

void QtWidgetsApplication7::mouseDoubleClickEvent(QMouseEvent *event)
{if (event->button() == Qt::LeftButton) {if (windowState() != Qt::WindowFullScreen) {setWindowState(Qt::WindowFullScreen);}else {setWindowState(Qt::WindowNoState);}}
}

鼠标移动事件

void QtWidgetsApplication7::mouseMoveEvent(QMouseEvent *event)
{//移动过程中判断鼠标是左键点击并且移动，那么要用buttons，返回的是鼠标状态的集合if (event->buttons() & Qt::LeftButton) {//获取窗口应当移动到的位置QPoint windowpos = event->globalPos() - offset;this->move(windowpos);}
}

滚轮事件

void QtWidgetsApplication7::wheelEvent(QWheelEvent *event)
{//鼠标滚动远离使用者放大texteditif (event->delta() > 0) {qDebug() << "catch wheel event delta > 0" << endl;ui.textEdit->zoomIn();}else {qDebug() << "catch wheel event delta < 0" << endl;ui.textEdit->zoomOut();}
}