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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">Dear friends,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">I’m hoping to receive some tips to my problem. At the moment I’m trying to implement a callback between Python and my C++-DLL.<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">My DLL calculates permanently some values and stores them in member-variables in one of the DLL-classes. <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">There are some exported functions in my DLL for starting and ending the evaluating and for reading out of values from the member-variables of my DLL.<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">My wish is to implement my DLL in such a way that my Python-script witch I use for starting my DLL will receive a notice from my DLL to that time when the new values were calculated. I can call then my Python-Function for reading out the values from the DLL synchronized.<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">This is my DLL-header:<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">SOUNDPROCLIB_API <SPAN style="COLOR: blue">int</SPAN> StartProcessing(<SPAN style="COLOR: blue">int</SPAN> fSourceRec, <SPAN style="COLOR: blue">int</SPAN> fNoiseRec, <SPAN style="COLOR: blue">int</SPAN> fCrackRec, <SPAN style="COLOR: blue">int</SPAN> fAudioOnRec, <SPAN style="COLOR: blue">int</SPAN> fBeepRec, <SPAN style="COLOR: blue">unsigned</SPAN> <SPAN style="COLOR: blue">long</SPAN> ulTimeMS );<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">SOUNDPROCLIB_API <SPAN style="COLOR: blue">int</SPAN> GetResults(<SPAN style="COLOR: blue">unsigned</SPAN> <SPAN style="COLOR: blue">long</SPAN>* ulHz, <SPAN style="COLOR: blue">double</SPAN>* dNoise, <SPAN style="COLOR: blue">int</SPAN>* bAudio, <SPAN style="COLOR: blue">int</SPAN>* bCrackFlag, <SPAN style="COLOR: blue">double</SPAN>* dSNR, <SPAN style="COLOR: blue">int</SPAN>* bBeep);<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">SOUNDPROCLIB_API <SPAN style="COLOR: blue">int</SPAN> EndProcessing(<SPAN style="COLOR: blue">void</SPAN>);<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">So I want to call my GetResults function from Python only if my DLL “tells” to my Python-Script “do it”.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">Here is my Python-DLL-wrapper:<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">from ctypes import*<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">import sys<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">class SoundProcLib(object):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>def __init__(self, library):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>self.library = library<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>@cdecl(c_int, library, [c_int, c_int, c_int, c_int, c_int, c_ulong])<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>def StartProcessing(f1, f2, f3, f4, f5, ul1):<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>if 0 == StartProcessing._api_(f1, f2, f3, f4, f5, ul1):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>raise WinError()<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="mso-spacerun: yes"> </SPAN>return None<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>self.StartProcessing = StartProcessing<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>@cdecl(c_int, library, [POINTER(c_ulong), POINTER(c_double), POINTER(c_int), POINTER(c_int), POINTER(c_double), POINTER(c_int)])<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>def GetResults():<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>ulHz,dNoise,bAudio,bCrackFlag,dSNR,bBeep = c_ulong(), c_double(), c_int(), c_int(), c_double(), c_int()<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>if 0 == GetResults._api_(byref(ulHz),byref(dNoise),byref(bAudio),byref(bCrackFlag),byref(dSNR),byref(bBeep)):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>raise WinError()<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="mso-spacerun: yes"> </SPAN>return ulHz.value,dNoise.value,bAudio.value,bCrackFlag.value,dSNR.value,bBeep.value<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>self.GetResults = GetResults<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>@cdecl(c_int, library, [c_void_p])<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>def EndProcessing():<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>if 0 == EndProcessing._api_(None):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="mso-spacerun: yes"> </SPAN>raise WinError()<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>return None<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>self.EndProcessing = EndProcessing<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>@cdecl(c_void_p, library, [c_void_p])<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>def inittestcallback():<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>if 0 == inittestcallback._api_(None):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>raise WinError()<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="mso-spacerun: yes"> </SPAN>return None<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>self.inittestcallback = inittestcallback<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">At the moment I started to implement my callback in such a way (I found it in a python-tutorial):<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">PyObject *ppyobjArgList;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">PyObject *ppyobjResult;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'">static</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> PyObject *my_callback = NULL;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'">static</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> PyObject *my_set_callback(PyObject *dummy, PyObject *args)<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">{<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>PyObject *result = NULL;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>PyObject *temp;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: blue">if</SPAN> (PyArg_ParseTuple(args, "O:set_callback", &temp)) {<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: blue">if</SPAN> (!PyCallable_Check(temp)) {<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>PyErr_SetString(PyExc_TypeError, "parameter must be callable");<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: blue">return</SPAN> NULL;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>}<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>Py_XINCREF(temp);<SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: green">/* Add a reference to new callback */<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>Py_XDECREF(my_callback);<SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: green">/* Dispose of previous callback */<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>my_callback = temp;<SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: green">/* Remember new callback */<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: green">/* Boilerplate to return "None" */<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>Py_INCREF(Py_None);<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>result = Py_None;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>bPyCallBackFlag = <SPAN style="COLOR: blue">true</SPAN>;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>}<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: blue">return</SPAN> result;<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">};<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'">static</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> PyMethodDef SoundMethods[] = {<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>{"callback",<SPAN style="mso-spacerun: yes"> </SPAN>my_set_callback, METH_VARARGS,<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>"Execute a callback."},<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; COLOR: green; FONT-FAMILY: 'Courier New'"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><SPAN style="mso-spacerun: yes"> </SPAN>{NULL, NULL, 0, NULL}<SPAN style="mso-spacerun: yes"> </SPAN><SPAN style="COLOR: green">/* Sentinel */<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">};<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"> <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="mso-ansi-language: EN-US"><FONT face="Times New Roman" size=3>So I’m not sure how can I “register” </FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">my_set_callback function in the already started Python-Interpreter and to “explain” my DLL which Python-Function is to call when the new values in my DLL were calculated.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">Thank you very much for your suggestions<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'; mso-ansi-language: EN-US">Oleg</SPAN><SPAN lang=EN-US style="mso-ansi-language: EN-US"><o:p></o:p></SPAN></P></DIV><p>
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