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From: Eric Laly on 9 Nov 2006 15:09
I'm launching a thread with a click on a button "encadrer"
If the user wants to cancel the operation, he clicks on a button "annuler" (cancel) to ask the (joinable) thread to terminate.
The code is at the end of the message.
When this code is running under Linux: no problem
But when running under Windows there is an error when clicking on button "annuler".
Sometimes the thread stops, sometimes not but there is always this messages:
"couldn't terminate thread (error 6: descripteur non valide)"
and "can not wait for thread termination (error 6: descripteur non valide)"

Someone can help ?
Thanks in advance.

?ric Laly.


------the creation of the thread when clicking on button "encadrer":
void PanelResultat::on_click_button_encadrer(wxCommandEvent& event)
{
...
// on cr?e le thread de lecture des codes-barres
Thread_traitement = new ThreadTraitement(panel_cadres,panel_signature,panel_choix_images,panel_parametres_sortie,this);
if ( thread_traitement->Create() != wxTHREAD_NO_ERROR )
{
wxLogFatalError(wxT("Cr?ation thread traitement impossible!"));
}
else
{
thread_traitement->Run();
}
}

------The constructor of ThreadTraitement (joinable type):
ThreadTraitement::ThreadTraitement(...) : wxThread(wxTHREAD_JOINABLE)

-------The end of the thread when clicking on button "annuler":
void PanelResultat::on_click_button_annuler(wxCommandEvent& event)
{
if (wxMessageBox(wxT("Voulez-vous vraiment interrompre le traitement ?"),wxT("Encadre_Image"),wxYES_NO|wxICON_QUESTION)==wxYES)
{
// on demande au thread de traitement de se terminer
thread_traitement->Delete();
// et on attend sa fin
thread_traitement->Wait();

...
}
}


------And the "job" in the thread:

for (unsigned int i=0;i<liste_images.size();i++)
{
...

if (TestDestroy()) Exit(0);
...
}



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