<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2600.0" name=GENERATOR>
<STYLE>@font-face {
font-family: Verdana;
}
@page Section1 {size: 595.3pt 841.9pt; margin: 72.0pt 90.0pt 72.0pt 90.0pt; }
P.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"
}
LI.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"
}
DIV.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"
}
H3 {
FONT-SIZE: 13.5pt; MARGIN-LEFT: 0cm; COLOR: #330099; MARGIN-RIGHT: 0cm; FONT-FAMILY: Verdana
}
A:link {
COLOR: blue; TEXT-DECORATION: underline
}
SPAN.MsoHyperlink {
COLOR: blue; TEXT-DECORATION: underline
}
A:visited {
COLOR: purple; TEXT-DECORATION: underline
}
SPAN.MsoHyperlinkFollowed {
COLOR: purple; TEXT-DECORATION: underline
}
SPAN.EmailStyle17 {
COLOR: windowtext; FONT-FAMILY: Arial
}
DIV.Section1 {
page: Section1
}
OL {
MARGIN-BOTTOM: 0cm
}
UL {
MARGIN-BOTTOM: 0cm
}
</STYLE>
</HEAD>
<BODY lang=EN-US vLink=purple link=blue bgColor=#c0dcc0>
<DIV><FONT face=Arial size=2> I also have this problem with the interactor,
every time as the first time my</FONT></DIV>
<DIV><FONT face=Arial size=2>mouse click on the view , there will be illegal
operation, have this bug fixed?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>zhang zhijun</FONT></DIV>
<DIV></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=a.maclean@acfr.usyd.edu.au
href="mailto:a.maclean@acfr.usyd.edu.au">Andrew J. P. Maclean</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=vtkusers@public.kitware.com
href="mailto:vtkusers@public.kitware.com">vtkusers@public.kitware.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, January 23, 2002 11:17
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [vtkusers] VTK & MFC/MDI
Problems</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">There seem to be problems with the
MFC sample in \VTK\Examples\GUI\Win32\SampleMFC. I am using the VTK4.x Nightly
Source from </SPAN></FONT><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">22-Jan-2002</SPAN></FONT><FONT
face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> and compiling everything on
Windows XP with MSVC SP5.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">1) The first relates to the fact
that there are considerable memory leaks occurring. If the code is compiled
(MSVC/SP5) we get the following leaks from these objects upon exit (don’t put
the mouse in the window and click on it):</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">vtkProperty2D, vtkCoordinate,
vtkActor2D, vtkWin32OpenGLTextMapper, vtkWin32OutputWindow, TimerLog all have
instances still around.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">It is my guess, but these objects
do not seem to be deleting themselves on exit.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">2) More seriously, when the code
is compiled if the mouse button is clicked in an active window, then the
program generates an Access Violation on exit, in </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">void
vtkWin32OpenGLTextMapper::ReleaseGraphicsResources(vtkWindow *win)
</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">at the line:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
win->MakeCurrent();</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I think this is because win is no
longer a valid object. So clearly there are problems relating to cleanup of
objects upon exit.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If we comment
out:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> if (this->RenderWindow)
this->RenderWindow->Delete(); </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">in:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">vtkMFCRenderView::~vtkMFCRenderView()</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">then the access violation does not
occur, but (obviously) there are many more memory leaks upon
exit.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">It is my opinion that there are
problems with the vtkMFC*.cpp and vtkMFC*.h files and
vtkWin32OpenGLRenderWindow</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt"><FONT
face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">1)<FONT face="Times New Roman"
size=1><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></FONT></SPAN></FONT><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Has anyone got any ideas as to
what the problem is?</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt"><FONT
face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">2)<FONT face="Times New Roman"
size=1><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></FONT></SPAN></FONT><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Can anyone fix it?
</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">As a matter of interest, SimpleCXX
compiles and runs OK with no memory leaks.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks Andrew</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<H3><B><FONT face=Verdana color=#330099 size=2><SPAN
style="FONT-SIZE: 10pt">___________________________________________<BR></SPAN></FONT></B><FONT
size=2><SPAN style="FONT-SIZE: 10pt">Andrew J. P. Maclean</SPAN></FONT></H3>
<TABLE class=MsoNormalTable style="WIDTH: 287.6pt" height=75 cellSpacing=0
cellPadding=0 width=383 border=0>
<TBODY>
<TR style="HEIGHT: 56.25pt" height=75>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 37.8pt; PADDING-TOP: 0cm; HEIGHT: 56.25pt"
vAlign=top width=50 height=75>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Postal:</SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 249.8pt; PADDING-TOP: 0cm; HEIGHT: 56.25pt"
vAlign=top width=333 height=75>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Australian Centre for
Field Robotics<BR>The Rose Street Building J04<BR>The
</SPAN></FONT><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">University</SPAN></FONT><FONT
face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"> of </SPAN></FONT><FONT
face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Sydney</SPAN></FONT><FONT
face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"> 2006
NSW<BR></SPAN></FONT><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">AUSTRALIA</SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 37.8pt; PADDING-TOP: 0cm"
width=50>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Room:</SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 249.8pt; PADDING-TOP: 0cm"
width=333>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">106</SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 37.8pt; PADDING-TOP: 0cm"
width=50>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Phone:</SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 249.8pt; PADDING-TOP: 0cm"
width=333>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">+61 2 9351
3283</SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 37.8pt; PADDING-TOP: 0cm"
width=50>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Fax:</SPAN></FONT></P></TD>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 249.8pt; PADDING-TOP: 0cm"
width=333>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">+61 2 9351
7474</SPAN></FONT></P></TD></TR>
<TR>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 37.8pt; PADDING-TOP: 0cm"
width=50>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-AU
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P></TD>
<TD
style="PADDING-RIGHT: 0cm; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; WIDTH: 249.8pt; PADDING-TOP: 0cm"
width=333>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN lang=EN-AU
style="FONT-SIZE: 12pt"><A href="http://www.acfr.usyd.edu.au/"><FONT
face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">http://www.acfr.usyd.edu.au/</SPAN></FONT></A></SPAN></FONT></P></TD></TR></TBODY></TABLE>
<P class=MsoNormal><B><FONT face=Verdana color=#330099 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #330099; FONT-FAMILY: Verdana">___________________________________________</SPAN></FONT></B></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN lang=EN-AU
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV></BLOCKQUOTE></BODY></HTML>