QGIS Python Programming Cookbook - Second Edition

Creating a simple message dialog

Message dialogs pop up to grab the user's attention and to display important information. In this recipe, we'll create a simple information dialog.

Getting ready

Open the QGIS Python console by going to the Plugins menu and selecting Python Console.

How to do it...

We will create a message dialog and display some text in it, as follows:

1. First, we need to import the GUI library:

           from PyQt4.QtGui import * 
   

2. Then,we'll create the message dialog:

           msg = QMessageBox() 
   

3. Next, we'll set the message we want to display:

           msg.setText("This is a simple information message.") 
   

4. Finally,we'll call the show method to display the message dialog:

           msg.show() 
   

How it works...

Note that we are directly using the underlying Qt framework from which ...