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Add support for Darwin's exclusive access APIs #70

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16 changes: 16 additions & 0 deletions hid/__init__.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import os
import sys
import ctypes
import atexit
import enum
Expand Down Expand Up @@ -146,6 +147,13 @@ def as_dict(self):
hidapi.hid_error.argtypes = [ctypes.c_void_p]
hidapi.hid_error.restype = ctypes.c_wchar_p

if sys.platform == "darwin" and version >= (0, 12, 0):
hidapi.hid_darwin_set_open_exclusive.argtypes = [ctypes.c_int]
hidapi.hid_darwin_set_open_exclusive.restype = None
hidapi.hid_darwin_get_open_exclusive.argtypes = []
hidapi.hid_darwin_get_open_exclusive.restype = ctypes.c_int
hidapi.hid_darwin_is_device_open_exclusive.argtypes = [ctypes.c_void_p]
hidapi.hid_darwin_is_device_open_exclusive.restype = ctypes.c_int

def enumerate(vid=0, pid=0):
ret = []
Expand Down Expand Up @@ -275,3 +283,11 @@ def get_indexed_string(self, index, max_length=255):
self.__hidcall(hidapi.hid_get_indexed_string,
self.__dev, index, buf, max_length)
return buf.value

@property
def exclusive(self):
if hasattr(hidapi, "hid_darwin_is_device_open_exclusive"):
return self.__hidcall(hidapi.hid_darwin_is_device_open_exclusive,
self.__dev)
else:
return False