window.show() sys.exit(app.exec_())'''fromPyQt5importQtWidgets, QtGuiimportsysfromformimportUi_Form#导入生成form.py里生成的类classmywindow(QtWidgets.QWidget,Ui_Form):def__init__(self): super(mywindow,self).__init__() self.setupUi(self)#定义槽函数defhello(self): self.textEdit.setTex...
Ui::MainWindow*ui; }; 这部分代码定义了一个名为MainWindow的类,继承自QMainWindow。Q_OBJECT宏用于启用信号和槽机制。 voidMainWindow::on_actAddFolder_triggered()//添加目录 { if(!ui->treeWidget->currentItem()) { QMessageBox::critical(this,"警告","未选择任何项!!!"); return; } 这是一个名...
class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(381, 347) self.centralWidget = QtWidgets.QWidget(MainWindow) self.centralWidget.setObjectName("centralWidget") self.tabWidget = QtWidgets.QTabWidget(self.centralWidget) ...
4 声明命名空间:namespace Ui Ui是因为要调用Ui中的MainWindow,此MainWindow非彼MainWindow,后面涉及的*ui指针会调用它。这并非一个无用的步骤,建议都加上。附: 一些可能用得上的QT工具 QApplication:基于QWidget,管理GUI程序的控制流和主要设置。无论多少窗口都只有一个QApplication对象(单例设计模式)。可以初始...
classMainWindow(QMainWindow):def__init__(self):QMainWindow.__init__(self)self.ui=ui_MainWindow.Ui_MainWindow()self.ui.setupUi(self)# self.main_frame = QWidget()## # Create the mpl Figure and FigCanvas objects.# # 5x4 inches, 100 dots-per-inch# ## self.dpi = 100# self.fig = ...
QWidget *parent = 0 is the parent of the new widget. If it is 0 (the default), the new widget will be a window. If not, it will be a child of parent, and be constrained by parent's geometry (unless you specify Qt::Window as window flag). Qt::WindowFlags f = 0 (where ...
}classmydialog:publicQWidget { Q_OBJECTpublic:explicitmydialog(QWidget *parent =0);virtual~mydialog();private: Ui::mydialog *ui; };#endif// MYDIALOG_H - mainwindow.h #ifndefMAINWINDOW_H#defineMAINWINDOW_H#include<QtCore/QtGlobal>#include<QMainWindow>QT_USE_NAMESPACE ...
//mainwindow.cpp #include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); } MainWindow::~MainWindow() { delete ui; } void MainWindow::on_pushButton_clicked() { } Read about si...
We recommend that actions are created as children of the window they are used in. In most cases actions will be children of the application's main window. QAction in widget applications Once a QAction has been created, it should be added to the relevant menu and toolbar, then connected ...