Committed a more or less working version.
diff --git a/Mac/Modules/ctl/ctlscan.py b/Mac/Modules/ctl/ctlscan.py
new file mode 100644
index 0000000..f104e8d
--- /dev/null
+++ b/Mac/Modules/ctl/ctlscan.py
@@ -0,0 +1,60 @@
+# Scan <Controls.h>, generating ctlgen.py.
+
+from scantools import Scanner
+
+def main():
+	input = "Controls.h"
+	output = "ctlgen.py"
+	defsoutput = "Controls.py"
+	scanner = MyScanner(input, output, defsoutput)
+	scanner.scan()
+	scanner.close()
+	print "=== Done scanning and generating, now doing 'import ctlsupport' ==="
+	import ctlsupport
+	print "=== Done.  It's up to you to compile Ctlmodule.c ==="
+
+class MyScanner(Scanner):
+
+	def destination(self, type, name, arglist):
+		classname = "Function"
+		listname = "functions"
+		if arglist:
+			t, n, m = arglist[0]
+			if t == "ControlHandle" and m == "InMode":
+				classname = "Method"
+				listname = "methods"
+		return classname, listname
+
+	def makeblacklistnames(self):
+		return [
+			'DisposeControl' # Implied by deletion of control object
+			'KillControls', # Implied by close of dialog
+			'SetCtlAction',
+			]
+
+	def makeblacklisttypes(self):
+		return [
+			'ProcPtr',
+			'CCTabHandle',
+			'AuxCtlHandle',
+			]
+
+	def makerepairinstructions(self):
+		return [
+			([("void_ptr", "*", "InMode"), ("long", "*", "InMode")],
+			 [("InBuffer", "*", "*")]),
+			
+			([("void", "*", "OutMode"), ("long", "*", "InMode"),
+			                            ("long", "*", "OutMode")],
+			 [("VarVarOutBuffer", "*", "InOutMode")]),
+			
+			# For TrackControl
+			([("ProcPtr", "actionProc", "InMode")],
+			 [("FakeType('(ControlActionUPP)0')", "*", "*")]),
+			
+			([("ControlHandle", "*", "OutMode")],
+			 [("ExistingControlHandle", "*", "*")]),
+			]
+
+if __name__ == "__main__":
+	main()