How do different types of C++ GUI libraries use functions to achieve different functions?

Yes, C has a variety of GUI libraries that provide functions to implement different GUI functions. Qt provides: QPushButton (button), QVBoxLayout (vertical layout), QTabWidget (tab window), QGraphicsView (custom graphics scene rendering). wxWidgets provides: wxButton (button), wxBoxSizer (layout management), wxNotebook (tab window), wxListCtrl (scrollable list). FLTK provides: Fl_Button (button), Fl_Group (widget group), Fl_Menu_Bar (menu bar), Fl_Tree (tree structure).

C library that uses functions to implement different GUI functions

In C, you can use various GUI libraries to create complex GUI. These libraries provide a wide range of functionality using functions that allow developers to easily design and implement a variety of interactive elements.

Qt

Qt is a cross-platform, object-oriented GUI library known for its rich functionality and extensibility. It provides the following utility functions:

• QPushButton: Create a standard button
• QVBoxLayout: Create a vertical layout
• QTabWidget: Create a tabbed widget
• QGraphicsView: Render a custom graphics scene

##wxWidgets

• wxButton: Create a button
• wxBoxSizer: Create a layout manager
• wxNotebook: Create a tabbed window
• wxListCtrl: Create a scrollable list

FLTK

• Fl_Button: Create a button
• Fl_Group: Create a widget group
• Fl_Menu_Bar: Create a menu bar
• Fl_Tree: Create a tree structure

Practical case: Create login in Qt Interface

#include <QtWidgets>

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);

    auto window = new QWidget;
    auto layout = new QVBoxLayout;
    auto username = new QLineEdit;
    auto password = new QLineEdit;
    auto loginBtn = new QPushButton("Login");

    layout->addWidget(username);
    layout->addWidget(password);
    layout->addWidget(loginBtn);

    window->setLayout(layout);
    window->show();

    return app.exec();
}

QVBoxLayout function creates a vertical layout, The QLineEdit function creates the username and password input fields, the QPushButton function creates the login button, and finally, the show function displays the window.

Conclusion

The above is the detailed content of How do different types of C++ GUI libraries use functions to achieve different functions?. For more information, please follow other related articles on the PHP Chinese website!