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<p class=MsoNormal><span style='color:#1F497D'>I found the answer. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Conclusively it doesn’t
matter of the vtk versions.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thank Clint.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I started tracing my program from
vtkXOpenGLRenderWindow.cxx<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I found the cursor was changed
by vtkOrientationMarkerWidget object.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I found that the InteractorObserver
of vtkOrientationMarkerWidget kept changing my mouse cursor<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>when my mouse enter into the
viewport of the vtkOrientationMarkerWidget objects.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>But I wrote SetInteractiveOff()
in my code. So I traced a little bit more and<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>found SetInteractiveOff() should
be followed AFTER SetInteractor() and SetEnabled() .<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>So, the program code should be
sequenced like below<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>vtkOrientationMarkerWidget
*pMakrer = vtkOrientationMarkerWidget::New();<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>…<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>pMarker->SetOrientationMarker(pCube);<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>pMarker->SetInteractor(…);<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>pMarker->SetEnabled(1);<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>pMarker->SetInteractive(0);<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>…<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>May be it would be much helpful
if a warning sentence in vtkOrientationMarkerWidget is added in the <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>document.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Sam Park.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org]
<b>On Behalf Of </b>Clinton Stimpson<br>
<b>Sent:</b> Wednesday, May 05, 2010 9:29 AM<br>
<b>To:</b> vtkusers@vtk.org<br>
<b>Subject:</b> Re: [vtkusers] QVTKWidget and setCursor()<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>On 05/05/2010 07:11 AM, (Samuel) Byeongjun Park wrote: <o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Hi
all,</span><br>
<br>
I found one problem related to mouse cursor.<br>
I changed mouse cursor using QVTKWidget's setCursor() function which<br>
is inherited from QWidget.<o:p></o:p></p>
<p class=MsoNormal><br>
It works fine. One interesting thing I found is that VTK 5.0.4 works Okay <br>
but when I upgraded to VTK5.4.2, somehow mouse cursor return to arrow cursor.<br>
<br>
Both VTK 5.0.4 and 5.4.2 works when I change the mouse cursor using
setCursor().<br>
However, for 5.4.2 when the QVTKWidget window is once hided by other window and<br>
raised to top, mouse cursor returned to arrow cursor for some QVTKWidgets (not
all the time, not all QVTKWidgets).<br>
It never happen in 5.0.4.<o:p></o:p></p>
<p class=MsoNormal><br>
I compared two versions of QVTKWidget source codes, but there was no
significant difference.<br>
<br>
<br>
<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Is there any suggestion where I
should dig?<br>
My system is running Linux 64bit with NVidia GL library.<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><br>
Perhaps the change in behavior is from vtkXOpenGLRenderWindow.cxx.<br>
I suggest looking at where it calls XDefineCursor() to see if that causes your
cursor issues.<br>
<br>
Clint<o:p></o:p></span></p>
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