diff --git a/Lib/tkinter/test/support.py b/Lib/tkinter/test/support.py
--- a/Lib/tkinter/test/support.py
+++ b/Lib/tkinter/test/support.py
@@ -17,22 +17,16 @@
             # process not running under the same user id as the current console
             # user.  To avoid that, raise an exception if the window manager
             # connection is not available.
-            from ctypes import cdll, c_int, pointer, Structure
-            from ctypes.util import find_library
+            import subprocess
+            p = subprocess.Popen('wish', stdin=subprocess.PIPE)
+            p.stdin.write(b'exit\r\n')
+            p.stdin.flush()
+            xit=p.wait()
+            if xit != 0:
+                _tk_unavailable = "cannot run without OS X gui process"
 
-            app_services = cdll.LoadLibrary(find_library("ApplicationServices"))
+            p.stdin.close()
 
-            if app_services.CGMainDisplayID() == 0:
-                _tk_unavailable = "cannot run without OS X window manager"
-            else:
-                class ProcessSerialNumber(Structure):
-                    _fields_ = [("highLongOfPSN", c_int),
-                                ("lowLongOfPSN", c_int)]
-                psn = ProcessSerialNumber()
-                psn_p = pointer(psn)
-                if (  (app_services.GetCurrentProcess(psn_p) < 0) or
-                      (app_services.SetFrontProcess(psn_p) < 0) ):
-                    _tk_unavailable = "cannot run without OS X gui process"
         else:   # not OS X
             import tkinter
             try: