#include#include int main(int argc, char *argv[]) { QApplication app(argc, argv); QTextEdit textEdit("Hello World!"); textEdit.show(); return app.exec(); }
#includeBoth examples use Qt Core and Gui packages.#include int main(int argc, char *argv[]) { QApplication app(argc, argv); QTextEdit textEdit; textEdit.setPlainText("Initial text"); QString text = textEdit.toPlainText(); // read text content textEdit.insertPlainText("more text"); // add more text textEdit.selectAll(); textEdit.cut(); // cut selected text textEdit.undo(); // undo the last action textEdit.setPlainText("New text"); // replace all text textEdit.show(); return app.exec(); }