PyQT Tutorial 3 - Responder a eventos

Author: devcarmelo

03-eventos/events.py

@@ -0,0 +1,52 @@
+import sys
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import QPushButton, QApplication, QMessageBox, QWidget
+
+
+class Example(QWidget):
+    def __init__(self):
+        super().__init__()
+        self.initUI()
+
+    def initUI(self):
+        btn1 = QPushButton("Button 1", self)
+        btn1.resize(150, 40)
+        btn1.move(400 / 2 - 150 / 2, 200 / 2 - 40)
+        btn1.clicked.connect(self.buttonClicked)
+
+        btn2 = QPushButton("Button 2", self)
+        btn2.resize(150, 40)
+        btn2.move(400 / 2 - 150 / 2, 200 / 2)
+        btn2.clicked.connect(self.buttonClicked)
+
+        self.resize(400, 200)
+        self.setMaximumSize(400, 200)
+        self.setWindowTitle('Event PyQT5')
+        self.show()
+
+    def buttonClicked(self, e):
+        btn_txt = self.sender().text()
+        QMessageBox.information(self, 'Events - Slot', 'click en: ' + btn_txt)
+
+    def closeEvent(self, event):
+        reply = QMessageBox.question(self,
+                                     'Events - Slot',
+                                     "Realmente desea cerrar la aplicacion",
+                                     QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
+
+        if reply == QMessageBox.Yes:
+            event.accept()
+        else:
+            event.ignore()
+
+    def keyPressEvent(self, event):
+        if event.key() == Qt.Key_Escape:
+            self.close()
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    win = Example()
+    sys.exit(app.exec_())
+
+