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<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:
"Cordia New"'>Hi ,</span></font></span><font size=2 face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:
"Cordia New"'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><span
style='mso-tab-count:1'> </span>I
am implementing a part of event handling program. When it received <span
class=SpellE>LeftButtonPress</span> event, I pass all required parameters to <span
style='mso-spacerun:yes'> </span><span class=SpellE>vtkInteractorStyle::<span
class=GramE>OnLeftButtonDown</span></span><span class=GramE>(</span>). This approach
worked in Vtk3 because the protected function “<span class=SpellE>UpdateInternalState</span><span
class=GramE>” <span style='mso-spacerun:yes'> </span>is</span> put
inside <span class=SpellE>OnLeftButtonDown</span>() as shown below.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'>-----------------------------------------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:
"Cordia New"'>void</span></font></span><font size=2 face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:
"Cordia New"'> <span class=SpellE>vtkInteractorStyle::OnLeftButtonDown</span>(<span
class=SpellE>int</span> ctrl, <span class=SpellE>int</span> shift, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><span
style='mso-spacerun:yes'>
</span><span class=SpellE><span class=GramE>int</span></span> X, <span
class=SpellE>int</span> Y) <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'>{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><span
style='mso-spacerun:yes'> </span>//<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><span
style='mso-spacerun:yes'> </span><span class=GramE>this</span>-><span
class=SpellE>UpdateInternalState</span>(ctrl, shift, X, Y);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'>------------------------------------------------------------------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'>However,
VTK4 does not put <span class=SpellE><span class=GramE>UpdateInternalState</span></span><span
class=GramE>(</span>) method inside and <span class=SpellE>OnLeftButtonDown</span>()
does not really used the function arguments. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'>My
question <span class=GramE>is<span style='mso-spacerun:yes'> </span>-></span><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'>Are
there any Standard ways to make <span class=SpellE>vtkInteractorStyle</span>
realizes the new Control/Shift value (WITHOUT modifying the VTK code<span
class=GramE>) ?</span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><o:p> </o:p></span></font></p>
<pre><font size=2 face=Tahoma><span style='font-size:10.0pt'>Regards <span
class=SpellE>Tirawat</span><o:p></o:p></span></font></pre>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
mso-bidi-font-size:11.5pt;font-family:Arial;mso-bidi-font-family:"Cordia New"'><o:p> </o:p></span></font></p>
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