Added the sample code from wxPython In Action to the samples dir

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/samples/wxPIA_book/Chapter-07/checkbox.py

@@ -0,0 +1,16 @@
+import wx
+
+class CheckBoxFrame(wx.Frame):
+    def __init__(self):
+        wx.Frame.__init__(self, None, -1, 'Checkbox Example', 
+                size=(150, 200))
+        panel = wx.Panel(self, -1)
+        wx.CheckBox(panel, -1, "Alpha", (35, 40), (150, 20))
+        wx.CheckBox(panel, -1, "Beta", (35, 60), (150, 20))
+        wx.CheckBox(panel, -1, "Gamma", (35, 80), (150, 20))
+
+if __name__ == '__main__':
+    app = wx.PySimpleApp()
+    CheckBoxFrame().Show()
+    app.MainLoop()  
+