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定義標頭檔案
QPoint move_point; //移動的距離
bool mouse_press; //按下滑鼠左鍵
protected:
void mousePressEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
複寫實現函式：
void Dialog::mousePressEvent( QMouseEvent * event )
{
//只能是滑鼠左鍵移動和改變大小
if(event->button() == Qt::LeftButton)
{
mouse_press = true;
}
//視窗移動距離
move_point = event->globalPos() - this->pos();
qDebug() << "pos()" << this->pos().x() << " " << this->pos().y() ;
qDebug() << "globalPos()" << event->globalPos().x() << " " << event->globalPos().y() ;
}
void Dialog::mouseReleaseEvent
{
mouse_press = false;
}
void Dialog::mouseMoveEvent(QMouseEvent *event)
{
//移動視窗
if(mouse_press)
{
QPoint move_pos = event->globalPos();
move(move_pos - move_point);
}
}