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POOn Windows, how can I install the lowest level global keyboard hook possible?
 

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  1. POOn Windows, how can I install the lowest level global keyboard hook possible?
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    <p>I'm working on a custom arcade launcher in python on Windows. I want to choose system and game, then launch the emulator - and require a certain key combination to kill the emulator. All of my key hooks work when testing with random applications, but when I actually launch the emulators (e.g. Nestopia), my key hooks fail to fire. I am currently using RegisterHotKey, which gets events but not the hotkeys. Anyone have an idea how to install something low enough to actually get the event before Nestopia? Here's my code:</p> <pre><code>import ctypes import win32con from ctypes import wintypes from ctypes import byref user32 = ctypes.windll.user32 class SimpleKeyboardHook: def getNextId(self): SimpleKeyboardHook._id += 1 return SimpleKeyboardHook._id # modifiers is a bitmask with win32con.[MOD_SHIFT, MOD_ALT, MOD_CONTROL, MOD_WIN] def waitFor(self, key, modifiers): # coerce to 0 if necessary modifiers = modifiers or 0 id = self.getNextId() hk = user32.RegisterHotKey(None, id, modifiers, key) print "register hotkey: ",hk if not hk: print "Unable to register hotkey for key ", key return False print "registered id", id try: msg = wintypes.MSG() while user32.GetMessageA(byref(msg), None, 0, 0) != 0: print "got message",msg.message,"which is not",win32con.WM_HOTKEY if msg.message == win32con.WM_HOTKEY: print "got hotkey" if msg.wParam == id: print "found proper hotkey" return True user32.TranslateMessage(byref(msg)) user32.DispatchMessageA(byref(msg)) finally: user32.UnregisterHotKey(None, id) return False SimpleKeyboardHook._id = 0 </code></pre>
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    1. COit's not python but may this be insightful to aid you searching: http://stackoverflow.com/questions/1465135/detecting-keyboard-hooks
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