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<p class="MsoNormal"><span lang="EN-US">Hello,</span></p>
<p class="MsoNormal"><span lang="EN-US"> I have a IDispatch related sdk header, say it contains two IDispatch interfaces:</span></p>
<p class="MsoNormal"><span lang="EN-US">```</span></p>
<p class="MsoNormal"><span lang="EN-US">interface _Foo : public IDispatch {…};</span></p>
<p class="MsoNormal"><span lang="EN-US">typedef interface Foo Foo; // No definition at all</span></p>
<p class="MsoNormal"><span lang="EN-US">```</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">`Foo` can be QueryInterface from `_Foo` in C++ (or just do a cast), and for this case I asume they are just the same class.</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">As the sdk internal only uses the Foo interface, such as:</span></p>
<p class="MsoNormal"><span lang="EN-US">```</span></p>
<p class="MsoNormal"><span lang="EN-US">interface Bar : public IDispatch</span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US"> bool open(…, Foo** out);</span></p>
<p class="MsoNormal"><span lang="EN-US"> void dosomething(Foo* f);</span></p>
<p class="MsoNormal"><span lang="EN-US">};</span></p>
<p class="MsoNormal"><span lang="EN-US">```</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So I use ConvertToSubClassCode to resolve the buggy sdk:</span></p>
<p class="MsoNormal"><span lang="EN-US">```</span></p>
<p class="MsoNormal"><span lang="EN-US"> class Foo /Abstract,NoDefaultCtors/</span></p>
<p class="MsoNormal"><span lang="EN-US"> {</span></p>
<p class="MsoNormal"><span lang="EN-US"> %ConvertToSubClassCode</span></p>
<p class="MsoNormal"><span lang="EN-US"> sipType = sipType__Foo;</span></p>
<p class="MsoNormal"><span lang="EN-US"> %End</span></p>
<p class="MsoNormal"><span lang="EN-US"> };</span></p>
<p class="MsoNormal"><span lang="EN-US">```</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">It works for `open`, but not for `</span><span lang="EN-US">dosomething` due to ConvertToSubClassCode make `open` returns a `_Foo`, they have no inherits from python’s view.</span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:SimSun">I can’</span><span style="font-size:12.0pt;font-family:SimSun">ｔ<span lang="EN-US"> change the C++ sdk as it out of my control</span>．<span lang="EN-US"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:SimSun">So is there any chance to make SIP works for such case?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:SimSun"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:SimSun">Thanks.<o:p></o:p></span></p>
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