PyQt4 textbox


pyqt textbox
PyQt4 textbox example
In this article you will learn how to interact with a textbox using PyQt4.

If you want to display text in a textbox (QLineEdit) you could use the setText() method.

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PyQt4 QLineEdit

The textbox example below changes the text if the button is pressed.

import sys
from PyQt4.QtCore import pyqtSlot
from PyQt4.QtGui import *
 
# create our window
app = QApplication(sys.argv)
w = QWidget()
w.setWindowTitle('Textbox example @pythonspot.com')
 
# Create textbox
textbox = QLineEdit(w)
textbox.move(20, 20)
textbox.resize(280,40)
 
# Set window size.
w.resize(320, 150)
 
# Create a button in the window
button = QPushButton('Click me', w)
button.move(20,80)
 
# Create the actions
@pyqtSlot()
def on_click():
    textbox.setText("Button clicked.")
 
# connect the signals to the slots
button.clicked.connect(on_click)
 
# Show the window and run the app
w.show()
app.exec_()

The text field is created with the lines:

textbox = QLineEdit(w)
textbox.move(20, 20)
textbox.resize(280,40)

The button (from screenshot) is made with:

button = QPushButton('Click me', w)

We connect the button to the on_click function by:

# connect the signals to the slots
button.clicked.connect(on_click)

This function sets the textbox using setText().

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