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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:11.0pt;
font-family:Arial'>Dear all,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:11.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:11.0pt;
font-family:Arial'>I am using the OpenIGTLinkTrackerBroadcastingUI.exe example
program to connect my Aurora tracking system to in-house developed tracking
software which uses the OpenIGTLink.dll.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>In order to improve the
communication between the programs I added a ToolTrackingStoppedEvent to the
updateObserver.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>When I hit the StopTracking button
the updateObserver ToolTrackingStoppedEvent is nicely called.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>When I call StopTrackingMsg = igtl::StopTrackingDataMessage::New();
I get an access violation because the m_DefaultBodyType of the
StopTrackingDataMessage can not be set.<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>Within
OpenIGTLinkTrackingBroadcaster.h:<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>if( m_Sockets.empty() )<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>{ return;<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>}<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>//do something only for the correct
tool<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>if( this->m_Tool.GetPointer() ==
caller )<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>{
//the tool transform has been updated, get it<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> if( dynamic_cast<const
igstk::TrackerToolTransformUpdateEvent *>( &event) )<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> { //send the transform<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> }<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> else if( dynamic_cast<const
igstk::ToolTrackingStoppedEvent *>( &event) )<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> {
igtl::StopTrackingDataMessage::Pointer StopTrackingMsg;<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> StopTrackingMsg =
igtl::StopTrackingDataMessage::New(); <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> std::vector<
igtl::ClientSocket::Pointer >::iterator it; <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> for (it = this->m_Sockets.begin();
it != this->m_Sockets.end(); ++it)<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> { StopTrackingMsg->Pack();<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> (*it)->Send(StopTrackingMsg->GetPackPointer(),
StopTrackingMsg->GetPackSize());<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> }<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> } <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>} <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:11.0pt;
font-family:Arial'>Any help to fix this problem is greatly appreciated. <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Arial><span
style='font-size:11.0pt;font-family:Arial'>Jasper<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face=Consolas><span
style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></font></p>
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