all tasks

Task/Simple-windowed-application/Python/simple-windowed-application-3.py

@@ -0,0 +1,20 @@
+import sys
+from qt import *
+
+def update_label():
+    global i
+    i += 1
+    lbl.setText("Number of clicks: %i" % i)
+
+i = 0
+app = QApplication(sys.argv)
+win = QWidget()
+win.resize(200, 100)
+lbl = QLabel("There have been no clicks yet", win)
+lbl.setGeometry(0, 15, 200, 25)
+btn = QPushButton("click me", win)
+btn.setGeometry(50, 50, 100, 25)
+btn.connect(btn, SIGNAL("clicked()"), update_label)
+win.show()
+app.connect(app, SIGNAL("lastWindowClosed()"), app, SLOT("quit()"))
+app.exec_loop()