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<p class=MsoNormal>Dear all,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have a class that is derived from vtkOpenGLTexture. <o:p></o:p></p>
<p class=MsoNormal>In that class I have a constructor, which sets the
RenderWindow pointer (defined in the parent class) to NULL.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Migrating to VTK 5.2.0 I noticed that this is changed to be
a vtkWeakPointer type. Now I get the following error<o:p></o:p></p>
<p class=MsoNormal>while setting the pointer to NULL (in the descendant class):<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>[error]<o:p></o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>Types pointed to are unrelated; conversion requires
reinterpret_cast, C-style cast or function-style cast<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> C:\vtkWin32_520\Common\vtkWeakPointer.h(46)
: while compiling class-template member function 'vtkWeakPointer<T>
&vtkWeakPointer<T>::operator =(T *)'<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> with<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> [<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> T=vtkRenderWindow<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> ]<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>
c:\vtkWin32_520\Rendering\vtkOpenGLTexture.h(65) : see reference to class
template instantiation 'vtkWeakPointer<T>' being compiled<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> with<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> [<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> T=vtkRenderWindow<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'>
]<o:p></o:p></span></p>
<p class=MsoNormal>[/error]<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal>I’ve tried all the suggested cast types. I’ve
also tried to use reinterpret_cast<vtkRenderWindow *>(this->RenderWindow.GetPointer()),<o:p></o:p></p>
<p class=MsoNormal>in order reset the pointer afterwards. All methods did not
succeed.<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal>Any suggestion how to handle this situation?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Kind regards,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Roy<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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