voidMainWindow::RightClick()//重绘鼠标右键事件处理函数(增加菜单选项){QMenu*menu=newQMenu();QCursor cur=this->cursor();menu->addAction("动作1");menu->addAction("动作2");menu->addAction("动作3");menu->exec(cur.pos());//关联到光标menu->show();} 信号和槽 connect(this,SIGNAL(clicked...
RightClick::RightClick(QWidget *parent) : QMainWindow(parent), ui(new Ui::RightClick) { ui->setupUi(this); // create the event handler object RCEventHandler *listEvHandler = new RCEventHandler(this); // connect signals connect(listEvHandler, SIGNAL(send_rightButtonClicked(const QPoint&))...
connect(&LiftButton,SIGNAL(clicked()),this,SLOT(OnLiftClicked())); RightButton.setGeometry(822,100,60,25); connect(&RightButton,SIGNAL(clicked()),this,SLOT(OnRightClicked())); UpButton.setGeometry(822,130,60,25); connect(&UpButton,SIGNAL(clicked()),this,SLOT(onUpClicked())); DownButto...
就是ECMAScript中的代码块，它的名字一般是on<Signal>这种形式，比如Qt Quick中的Button有一个信号click...
onClicked:{} 对,就是这个 onClicked ,其实就包含了 QML 中使用信号与槽的一般形式:信号处理器。 信号处理器 让我们回头再看信号处理器,它的名字还有点儿特别,一般是 on{Signal} 这种形式。在上节的示例中, Button 元素有一个名为 clicked() 的信号,我们提供的信号处理器是酱紫的: ...
connect( button , SIGNAL(clicked()) , this , SLOT(slotButtonClick()) ) ; } void mydialog::slotButtonClick() { #if 0 /*dialog和widget的区别,exec和show的区别而已*/ QDialog *dlg = new QDialog ; QPushButton *button = new QPushButton("close" , dlg ) ; ...
QtAnimationWidget::QtAnimationWidget(QWidget*parent):QtWidgetBase(parent){m_bShow=false;m_animation=newQPropertyAnimation(this,"pos");m_colorBackground=QColor("#ffffff");connect(m_animation,SIGNAL(finished()),this,SLOT(SltAnimationFinished()));connect(m_animation,SIGNAL(finished()),this,SIGNAL...
connect(myButton, SIGNAL(clicked()), this, SLOT(onMyButtonClicked())); 1 (5). 设置按钮的大小: 按钮的 高度为50, 宽度为200. myButton->resize(200,50);1 (6). 设置QPushButton的样式: 使用setStyleSheet ( ) 函数设置 QPushButton 的样式表,例如改变了 背景颜色 和 文本颜色 . ...
(&RightButton,SIGNAL(clicked()),this,SLOT(OnRightClicked()));UpButton.setGeometry(822,130,60,25);connect(&UpButton,SIGNAL(clicked()),this,SLOT(onUpClicked()));DownButton.setGeometry(822,160,60,25);connect(&DownButton,SIGNAL(clicked()),this,SLOT(onDownClicked()));label.move(840,200);...
If you click and drag in one label instead, you can change the physical positions of the labels. When this happens, the signal moved( int, int ) is emitted, in which the first parameter specifies the column being moved and the second specifies its new position. These three actions—...