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<DIV>
<DIV>Thanks for <SPAN
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<DIV style="TEXT-INDENT: 2em"><SPAN
style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 14px/18px Arial; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"> here
is my main code, and if i use [<FONT color=#000080
face=微软雅黑>window->Render()], there will be an error:</FONT></SPAN></DIV><SPAN
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<DIV
style="TEXT-INDENT: 2em">ERROR: In D:\Program Files (x86)\VTK 5.8.0\VTK\Rendering\vtkWin32OpenGLRenderWindow.cxx, line 247</DIV>
<DIV
style="TEXT-INDENT: 2em">vtkWin32OpenGLRenderWindow (06DFC0B0): wglMakeCurrent failed in MakeCurrent(), error: <SPAN
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requested resource is in use.</SPAN></DIV>
<DIV style="TEXT-INDENT: 2em"> </DIV></SPAN></DIV>
<DIV><SPAN
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<DIV><SPAN
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<DIV>void CupGeologyView::addInternetEvent( vtkActor *actor, vtkRenderWindow *window)</DIV>
<DIV>{</DIV>
<DIV>/*actor->SetOrientation(27.0, 27.0, 27.0);*/</DIV>
<DIV>internetEvent = new cupVtkUserInternetEvent;</DIV>
<DIV>QThread * thread = new QThread(this);</DIV>
<DIV>internetEvent->moveToThread(thread);</DIV>
<DIV>connect(ui.allowInternetEvent, SIGNAL(triggered()), internetEvent, SLOT(init()));</DIV>
<DIV>thread->start();</DIV>
<DIV> </DIV>
<DIV>CupRemoteModelCallback *mo1 = CupRemoteModelCallback::New();</DIV>
<DIV>mo1->actor = actor;</DIV>
<DIV>mo1->window = window;</DIV>
<DIV>internetEvent->AddObserver(vtkCommand::UserEvent,mo1);</DIV>
<DIV>mo1->Delete();</DIV>
<DIV>}</DIV>
<DIV> </DIV></SPAN></DIV>
<DIV>void CupRemoteModelCallback::Execute( vtkObject *caller, unsigned long eventId, void *callData )</DIV>
<DIV>{</DIV>
<DIV>cupVtkUserInternetEvent *internetEvent = reinterpret_cast<cupVtkUserInternetEvent *>(caller);</DIV>
<DIV>if (eventId = vtkCommand::UserEvent)</DIV>
<DIV>{</DIV>
<DIV>if (actor!= NULL && window != NULL)</DIV>
<DIV>{</DIV>
<DIV>//to-do</DIV>
<DIV>int* xyz = (int*)callData;</DIV>
<DIV>double ori[3];</DIV>
<DIV>ori[0] = xyz[0];</DIV>
<DIV>ori[1] = xyz[1];</DIV>
<DIV>ori[2] = xyz[2];</DIV>
<DIV>actor->SetOrientation(ori);</DIV>
<DIV>/*window->Render();*/</DIV>
<DIV>} </DIV>
<DIV>}</DIV>
<DIV>}</DIV></DIV>
<DIV> </DIV>
<HR style="WIDTH: 210px; HEIGHT: 1px" align=left color=#b5c4df SIZE=1>
<DIV><SPAN>qlizhi</SPAN></DIV>
<DIV> </DIV>
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<DIV><B>From:</B> <A href="mailto:daviddoria@gmail.com">David
Doria</A></DIV>
<DIV><B>Date:</B> 2012-04-22 21:53</DIV>
<DIV><B>To:</B> <A href="mailto:qlizhi@gmail.com">qlizhi</A></DIV>
<DIV><B>CC:</B> <A href="mailto:vtkusers@vtk.org">vtkusers</A></DIV>
<DIV><B>Subject:</B> Re: [vtkusers] question about
vtkCommand</DIV></DIV></DIV>
<DIV>
<DIV class=FoxDiv20120423121808454975>
<DIV class=gmail_extra>
<DIV class=gmail_quote>2012/4/22 qlizhi <SPAN dir=ltr><<A
href="mailto:qlizhi@gmail.com" target=_blank>qlizhi@gmail.com</A>></SPAN><BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote><U></U>
<DIV style="MARGIN: 10px">
<DIV> </DIV>
<DIV>hi, all!</DIV>
<DIV style="TEXT-INDENT: 2em">i write a subclass of vtkCommand, and in its
function Execute(), i try to change an actor's Orientation by code
[actor->SetOrientation(ori)].</DIV>
<DIV>I made breakPoint on that line, it runs. But the
renderWindow show nothing. Can anybody tell me why?</DIV>
<DIV style="TEXT-INDENT: 2em">Sorry for my poor english!</DIV>
<HR style="MIN-HEIGHT: 1px; WIDTH: 210px" align=left color=#b5c4df SIZE=1>
<SPAN class=HOEnZb><FONT color=#888888>
<DIV><SPAN>qlizhi</SPAN></DIV></FONT></SPAN></DIV></BLOCKQUOTE>
<DIV>Did you call renderWindow->Render()? You'll probably have to make us an
as-small-as-possible code sample so we can see exactly what you're
doing.</DIV><BR>David<BR></DIV></DIV></DIV></DIV></BODY></HTML>