How come the textChanged event is not happening whenever I input some data in the QLineEdit?
from PyQt4.Qt import Qt, QObject,QLineEdit
from PyQt4.QtCore import pyqtSlot,SIGNAL,SLOT
from PyQt4 import QtGui, QtCore
import sys
class DirLineEdit(QLineEdit, QtCore.QObject):
"""docstring for DirLineEdit"""
@pyqtSlot(QtCore.QString)
def textChanged(self, string):
QtGui.QMessageBox.information(self,"Hello!","Current String is:\n"+string)
def __init__(self):
super(DirLineEdit, self).__init__()
self.connect(self,SIGNAL("textChanged(QString&)"),
self,SLOT("textChanged(QString *)"))
app = QtGui.QApplication(sys.argv)
smObj = DirLineEdit()
smObj.show()
app.exec_()
everything seems to be correct to me, what am I missing ?
Replace following line:
self.connect(self,SIGNAL("textChanged(QString&)"),
self,SLOT("textChanged(QString *)"))
with:
self.connect(self,SIGNAL("textChanged(QString)"),
self,SLOT("textChanged(QString)"))
Or you can use self.textChanged.connect
(handler should be renamed because the name conflicts):
class DirLineEdit(QLineEdit, QtCore.QObject):
def on_text_changed(self, string):
QtGui.QMessageBox.information(self,"Hello!","Current String is:\n"+string)
def __init__(self):
super(DirLineEdit, self).__init__()
self.textChanged.connect(self.on_text_changed)
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