获取鼠标点击处的控件并获取其坐标

 

int mouse_x = QCursor::pos().x();//鼠标点击处横坐标
int mouse_y = QCursor::pos().y();//鼠标点击处纵坐标
QWidget *action = QApplication::widgetAt(mouse_x, mouse_y);//获取鼠标点击处的控件
QPoint GlobalPoint(action->mapToGlobal(QPoint(0, 0)));//获取该控件在窗体中的坐标
int x = GlobalPoint.x();//该控件在窗体中左上角横坐标
int y = GlobalPoint.y();//该控件在窗体中左上角纵坐标
 

QT 获取控件widget的屏幕坐标
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方法一： /// 获取窗口控件的屏幕位置，类似于ClientToScreen QPoint GlobalPoint(widget->mapToGlobal(QPoint(0,0))); 方法二： /// 获取窗口控件的屏幕位置 static QPoint getPos(QWidget* widget) {  if (NULL == widget)  {   return QPoint(-1,-1);  }  float px = 0;  float py = 0;  QWidget *parent = widget;  QWidget *preParent= NULL;  do  {   QPoint p = parent->pos();   px += p.x();   py += p.y();   preParent = parent ;   parentw = parent->parentWidget();    } while (NULL != parent);  QSize size = preParent->frameSize();  QSize size2 = preParent->size();  px = px + (size.width() - size2.width())/2;  py = py + (size.height() - size2.height() - (size.width() - size2.width())/2);  QPoint pr(px, py);  return pr; }