Add a GetIM() method to Colour, Point, Size, Rect and other ‘value’ types.

GetIM() returns a replicant of the original object that is immutable, so it can be used as a dictionary key, or etc., but still gives access to the properties by name, which using the Get() method to get a tuple of the values does not do.

unittests/test_position.py

@@ -48,6 +48,19 @@ class position_Tests(wtc.WidgetTestCase):
         self.assertTrue(p4 == p1)
 
 
+    def test_GetIM(self):
+        # Test the immutable version returned by GetIM
+        obj = wx.Position(1,2)
+        im = obj.GetIM()
+        assert isinstance(im, tuple)
+        assert im.Row == obj.Row
+        assert im.Col == obj.Col
+        obj2 = wx.Position(im)
+        assert obj == obj2
+
+
+
+
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