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<p class=MsoNormal><span style='color:#1F497D'>One last experiment before I
leave for the weekend. If I start a blank C++ .NET project and run the same
code:<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'>vtkImageData * image =
vtkImageData::New();<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>image->Delete();<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'>then I get no memory leaks. I don’t
know anything about .NET really and would prefer to continue coding in straight
Visual C++. Does this mean that VTK 5 prefers .NET or is by default built for
it? Is the memory leakage I’m seeing somehow related to garbage collection or
the lack thereof in C++?<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'>If ANYONE has answers, please
share! Thanks!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><br>
Beau<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #91C0FF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'>From:</span></b><span
style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'> Beau Sapach
[mailto:beau.sapach@ualberta.ca] <br>
<b>Sent:</b> Friday, June 30, 2006 1:04 PM<br>
<b>To:</b> 'vtkusers@vtk.org'<br>
<b>Subject:</b> RE: Upgraded to 5.0, now memory leaks...<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Hello again everyone,<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'>This is even more bizarre
now, it seems that if I create a blank MFC application (dialog based) in
Visual Studio I will get the same results as below, if I simply create a vtk
object and then delete it.<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'>vtkImageData * image =
vtkImageData::New();<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>image->Delete();<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'>these are the only two lines of
code under a single button on my form and I get the same huge list of memory
leaks. What’s going on?? Does anyone know what’s causing
this? Is this possibly a false-positive issue? Many of the memory
leaks are for vtk objects that I’ve never even used, ever. Any help would
be much appreciated. 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'>Beau<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #91C0FF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'>From:</span></b><span
style='font-size:9.0pt;font-family:"Segoe UI","sans-serif"'> Beau Sapach
[mailto:beau.sapach@ualberta.ca] <br>
<b>Sent:</b> Friday, June 30, 2006 10:51 AM<br>
<b>To:</b> 'vtkusers@vtk.org'<br>
<b>Subject:</b> Upgraded to 5.0, now memory leaks...<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hello everyone,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’ve just upgraded an application I’m developing to
VTK5 so that I can use the vtkAVIWriter. Seems to compile just fine now,
with a couple of minor tweaks. But on exiting I get a massive amount of
memory leaks. Is this possibly related to reference counting? Is
there a new way to delete objects in VTK 5?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Beau<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Here is a snippet of the memory leak output from Visual
Studio:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>Detected memory leaks!<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>Dumping objects -><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{93220} normal block at 0x03247208, 12 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <RAW_SCALARS > 52 41 57 5F 53 43
41 4C 41 52 53 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{93219} normal block at 0x032470A0, 296 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data:
<
> B4 20 18 10 01 00 00 00 00 CD CD CD BE 0F 00 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{92786} normal block at 0x031EC638, 12 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <RAW_SCALARS > 52 41 57 5F 53 43
41 4C 41 52 53 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{92785} normal block at 0x031EC4D0, 296 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data:
<
> B4 20 18 10 01 00 00 00 00 CD CD CD D8 0E 00 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{92350} normal block at 0x03191A20, 12 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <RAW_SCALARS > 52 41 57 5F 53 43
41 4C 41 52 53 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{92349} normal block at 0x031918B8, 296 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data:
<
> B4 20 18 10 01 00 00 00 00 CD CD CD F2 0D 00 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{91914} normal block at 0x030DED58, 12 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <RAW_SCALARS > 52 41 57 5F 53 43
41 4C 41 52 53 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{91913} normal block at 0x030DEBF0, 296 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data:
<
> B4 20 18 10 01 00 00 00 00 CD CD CD 0C 0D 00 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{8728} normal block at 0x02B53A18, 36 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data:
<<
> 3C C8 17 10 01 00 00 00 00 CD CD CD 01 00 00 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1084} normal block at 0x02AAE788, 16 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkXYPlotWidget > 76 74 6B 58 59
50 6C 6F 74 57 69 64 67 65 74 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1083} normal block at 0x02AAE738, 16 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkSplineWidget > 76 74 6B 53 70
6C 69 6E 65 57 69 64 67 65 74 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1082} normal block at 0x02AAE6E8, 16 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkSphereWidget > 76 74 6B 53 70
68 65 72 65 57 69 64 67 65 74 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1081} normal block at 0x02AAE698, 19 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkScalarBarWidg> 76 74 6B 53 63
61 6C 61 72 42 61 72 57 69 64 67 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1080} normal block at 0x02AAE648, 15 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkPointWidget > 76 74 6B 50 6F
69 6E 74 57 69 64 67 65 74 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1079} normal block at 0x02AAE5F8, 15 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkPlaneWidget > 76 74 6B 50 6C
61 6E 65 57 69 64 67 65 74 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1078} normal block at 0x02AAE5A0, 27 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkOrientationMa> 76 74 6B 4F 72
69 65 6E 74 61 74 69 6F 6E 4D 61 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1077} normal block at 0x02AAE550, 14 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'> Data: <vtkLineWidget > 76 74 6B 4C 69 6E
65 57 69 64 67 65 74 00 <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:8.0pt;
font-family:"Courier New"'>{1076} normal block at 0x02AAE4F8, 23 bytes long.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Courier New"'> Data:
<vtkImplicitPlane> 76 74 6B 49 6D 70 6C 69 63 69 74 50 6C 61 6E 65</span><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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