Professional IronPython

Defining Windows Forms
 
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143
lISTINg 8-1: 
 Designing the form and controls
# Set up the path to the .NET Framework. 
import sys
sys.path.append(‘C:\\WINDOWS\\Microsoft.NET\\Framework\\v2.0.50727’)
# Make clr accessible.
import clr
# Add any required references.
clr.AddReference(‘System.Windows.Forms.DLL’)
clr.AddReference(‘System.Drawing.DLL’)
# Import the .NET assemblies.
import System 
import System.Windows.Forms
import System.Drawing.Point
class frmMain(System.Windows.Forms.Form):
# This function performs all of the required initialization.
def InitializeComponent(self):
# Configure btnOK
self.btnOK = System.Windows.Forms.Button()
self.btnOK.Text = “&OK”
self.btnOK.Location = System.Drawing.Point(263, 13)
# Configure btnCancel
self.btnCancel = System.Windows.Forms.Button()
self.btnCancel.Text = “&Cancel”
self.btnCancel.Location = System.Drawing.Point(263, 43)
# Configure lblMessage
self.lblMessage = System.Windows.Forms.Label()
self.lblMessage.Text = ‘This is a sample label.’
self.lblMessage.Location = System.Drawing.Point(13, 13)
self.lblMessage.Size = System.Drawing.Size(120, 13)
# Configure the form.
self.Text = ‘Simple Python Windows Forms Example’
self.ClientSize = System.Drawing.Size(350, 200)
# Add the controls to the form.
self.Controls.Add(self.btnOK)
self.Controls.Add(self.btnCancel)
self.Controls.Add(self.lblMessage)
The code begins by adding the .NET Framework path to 
sys.path
. It then uses 
clr.AddReference()
to add references for both 
System.Windows.Forms.DLL
and 
System.Drawing.DLL
. Finally, the code 
imports a number of .NET assemblies. The example uses individual 
import
statements for each assem-
bly. Theoretically, you can combine all the imports into a single 
import
statement, but most developers 
find using individual 
import
statements is a lot more readable and easy to maintain.
548592c08.indd 143
2/24/10 12:48:08 PM
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