小编Ant*_*ony的帖子

尝试创建一个python回调,需要在Windows环境中从dll调用C回调时调用它.请查看以下代码以了解该问题.

from ctypes import *

#---------qsort Callback-------------#
IntArray5 = c_int * 5
ia = IntArray5(5,1,7,33,99)
libc = cdll.msvcrt
qsort = libc.qsort
qsort.restype = None

CMPFUNC = CFUNCTYPE(c_int,POINTER(c_int),POINTER(c_int) )
test = 0
def py_cmp_func(a,b):
    #print 'py_cmp_func:',a[0],b[0]
    global test
    test = 10000
    return a[0]-b[0]

cmp_func = CMPFUNC(py_cmp_func)
qsort(ia, len(ia), sizeof(c_int), cmp_func)
print "global test=",test
for item in ia : print item

#----------Load DLL & Connect ------------#
gobiDLL = WinDLL("C:\LMS\QCWWAN2k.dll")
print  'Output of connect : ',gobiDLL.QCWWANConnect()

#----------SetByteTotalsCallback----------#
tx = POINTER(c_ulonglong)
rx = POINTER(c_ulonglong) …