When calling GTK method. See sources in http://rts-2.svn.sourceforge.net/viewvc/rts-2/trunk/pyrts2/widgets/
for details. Petr Kubanek Joseph S. Alcântara píše v Pá 24. 02. 2012 v 16:26 -0300: > Where do I have put gobject.idle_add? > > See the program: http://paste.debian.net/157481/ > > Joseph Soares Alcântara > Engenharia da Computação - 8º semestre > Universidade Federal do Ceará - UFC > Sobral - Ceará > > +--------------------------------------------------------------------------+ > .| - °v°...A liberdade não pode ser comprada e sim | > .| -/(_)\..conquistada. Conquiste a sua também use | > .| - ^^ G N U / L I N U X | > +--------------------------------------------------------------------------+ > > > > 2012/2/22 Timo <timomli...@gmail.com> > Op 22-02-12 12:19, Joseph S. Alcântara schreef: > Hi, now I get access to FAQ PyGTK talking about > threads. It seems a little complicated, and I didn't > get it to work yet. > Like there teaches, I put at the begin, before > anything be called, gtk.threads_init() (that my python > says it's deprecated and suggest me to use > gtk.gdk.threads_init, as well as threads_enter/leave) > > So, I put gtk.main() between thrads_enter/leave and > every part of code I want to be a thread, I put into > this code (enter/leave) but it continue working the > same. ie, it's now working. > > I'm did something like this, into a class: > > gtk.gdk.threads_enter > > self.th <http://self.th> = > Thread(target=self.camera.runvideo) > > self.th.start() > gtk.gdk.threads_leave > > It's a class that calls a gtk.Window. After, in > self.camera.runvideo, it calls famous routine to show > images from webcam > > > I think it's also in the FAQ, but you shouldn't do any GUI > stuff in a thread, and if you do so, call it with > gobject.idle_add(). > > Cheers, > Timo > > *Joseph Soares Alcântara* > > Engenharia da Computação - 8º semestre > Universidade Federal do Ceará - UFC > Sobral - Ceará > > > +--------------------------------------------------------------------------+ > .| - °v°...A liberdade não pode ser comprada e sim > | > .| -/(_)\..conquistada. Conquiste a sua também use | > .| - ^^ G N U / L I N U X > | > > +--------------------------------------------------------------------------+ > > > > > 2012/2/21 Joseph S. Alcântara <josephser...@gmail.com > <mailto:josephser...@gmail.com>> > > > How do I show a IplImage in a gtk.Image? > > > *Joseph Soares Alcântara* > > Engenharia da Computação - 8º semestre > Universidade Federal do Ceará - UFC > Sobral - Ceará > > > > +--------------------------------------------------------------------------+ > .| - °v°...A liberdade não pode ser comprada e sim > | > .| -/(_)\..conquistada. Conquiste a sua também use > | > .| - ^^ G N U / L I N U X > | > > > +--------------------------------------------------------------------------+ > > > > 2012/2/21 Joseph S. Alcântara > <josephser...@gmail.com > > <mailto:josephser...@gmail.com>> > > > I cannot access FAQ, I think it's not working > now. > Don't you have any example how could I solve > that? > Yes, I'd like to show image from cv.QueryFrame > in a gtk.Image, > But I am new in this, I'm learning a little > slow. > It's a project to the university. We have an > Open Source Study > Group, and I have to create a program using > python + opencv + gtk. > > Thank you > > > *Joseph Soares Alcântara* > > Engenharia da Computação - 8º semestre > Universidade Federal do Ceará - UFC > Sobral - Ceará > > > > +--------------------------------------------------------------------------+ > .| - °v°...A liberdade não pode ser comprada e > sim | > .| -/(_)\..conquistada. Conquiste a sua também > use | > .| - ^^ G N U / L I N U X > | > > > +--------------------------------------------------------------------------+ > > > > 2012/2/21 John Stowers > <john.stowers.li...@gmail.com > > <mailto:john.stowers.li...@gmail.com>> > > > IIRC opecv starts a mainloop when create > window is called. > > In general, don't use threads unless you > have read the FAQ and > understand what you are doing. > > John > > 2012/2/21 Joseph S. Alcântara > <josephser...@gmail.com > > <mailto:josephser...@gmail.com>>: > > > Even if I don't use, ie, if I comment the > lines where > NamedWindow, ShowImage > > and WaitKey appear it freezes too. > > > > Joseph Soares Alcântara > > Engenharia da Computação - 8º semestre > > Universidade Federal do Ceará - UFC > > Sobral - Ceará > > > > > > > +--------------------------------------------------------------------------+ > > .| - °v°...A liberdade não pode ser > comprada e sim | > > .| -/(_)\..conquistada. Conquiste a sua > também use | > > .| - ^^ G N U / L I N U > X | > > > > > +--------------------------------------------------------------------------+ > > > > > > > > 2012/2/21 John Stowers > <john.stowers.li...@gmail.com > > <mailto:john.stowers.li...@gmail.com>> > > >> > >> GTK is not threadsafe. > >> > >> If opencv shows a gtk mainwindow in > cv.ShowImage, and > that occurs in a > >> different thread to the one running > gtk_main, then > unpredictable > >> crashes and odd behaviour will result. > >> > >> Please check the pygtk FAQ for how to > use threading and > pygtk. > >> > >> I suggest displaying the image yourself > in by getting > the data from > >> the IPL image and copying it into a > GtkImage. Or be > much more careful > >> with which operations you do in which > thread (i.e. > cv.ShowImage, > >> cv.WaitKey) > >> > >> John > >> > >> 2012/2/21 Joseph S. Alcântara > <josephser...@gmail.com > > <mailto:josephser...@gmail.com>>: > > >> > Hi, Thank you for response to me. > >> > > >> > See, can I sand you my program to you > see what I am > making? I've used > >> > Thread, but seems like is not working > like I want. > >> > > >> > You must run from main.py > >> > > >> > Joseph Soares Alcântara > >> > Engenharia da Computação - 8º semestre > >> > Universidade Federal do Ceará - UFC > >> > Sobral - Ceará > >> > > >> > > >> > > > > +--------------------------------------------------------------------------+ > >> > .| - °v°...A liberdade não pode ser > comprada e sim | > >> > .| -/(_)\..conquistada. Conquiste a > sua também use | > >> > .| - ^^ G N U / L I N > U X | > >> > > >> > > > > +--------------------------------------------------------------------------+ > >> > > >> > > >> > > >> > 2012/2/19 Hart's Antler > <bhart...@yahoo.com > > <mailto:bhart...@yahoo.com>> > > >> >> > >> >> Hi Joseph, > >> >> I got GTK and OpenCV working together > using threads. > This example > >> >> works > >> >> with CPython2, CPython3 and PyPy, see > my blog post. > >> >> > http://pyppet.blogspot.com/2011/12/rpythonic-044.html > >> >> > >> >> -brett- > >> >> > >> >> ________________________________ > >> >> From: Joseph S. Alcântara > <josephser...@gmail.com > > <mailto:josephser...@gmail.com>> > >> >> To: pygtk@daa.com.au > <mailto:pygtk@daa.com.au> > > > >> >> Sent: Sunday, February 19, 2012 9:46 > AM > >> >> Subject: [pygtk] PyGTK + OpenCV > >> >> > >> >> hi, I'm writing a application that > uses pygtk and > opencv. and I had a > >> >> problem. When I run the program it > shows a gui. So > far so good. But, > >> >> when I > >> >> click in a menuitem, it should call a > functino that > runs the famous > >> >> routine > >> >> to show a video from webcam. But in > this moment, the > app freezes. I > >> >> have > >> >> tried to use thread, but opencv gui > runs just after > I call > >> >> gtk.main_quit(). > >> >> What could solve my problem? Thanks. > >> >> > >> >> Estou escrevendo um programa em > python, usando pygtk > e opencv. Quando > >> >> rodo > >> >> o programa, aparece uma janela e até > aí, beleza. Mas > quando eu clico em > >> >> um > >> >> menuitem, ele deve chamar uma função > que roda a > famosa rotina que exibe > >> >> um > >> >> vídeo a partir da webcam. No entanto, > neste momento, > o programa trava. > >> >> Então, eu tentei usar Thread, mas a > parte do opencv > só roda depois que > >> >> eu > >> >> fecho a janela, chamando > gtk.main_quit(). O que > poderia ser? Obrigado > >> >> desde > >> >> já. > >> >> > >> >> Joseph Soares Alcântara > >> >> Engenharia da Computação - 8º > semestre > >> >> Universidade Federal do Ceará - UFC > >> >> Sobral - Ceará > >> >> > >> >> > >> >> > >> >> > > > +--------------------------------------------------------------------------+ > >> >> .| - °v°...A liberdade não pode ser > comprada e sim | > >> >> .| -/(_)\..conquistada. Conquiste a > sua também use | > >> >> .| - ^^ G N U / L I > N U X | > >> >> > >> >> > >> >> > > > +--------------------------------------------------------------------------+ > >> >> > >> >> > >> >> > _______________________________________________ > >> >> pygtk mailing list pygtk@daa.com.au > > <mailto:pygtk@daa.com.au> > > >> >> > http://www.daa.com.au/mailman/listinfo/pygtk > >> >> Read the PyGTK FAQ: > http://faq.pygtk.org/ > >> >> > >> > > >> > > >> > > _______________________________________________ > >> > pygtk mailing list pygtk@daa.com.au > > <mailto:pygtk@daa.com.au> > > >> > > http://www.daa.com.au/mailman/listinfo/pygtk > >> > Read the PyGTK FAQ: > http://faq.pygtk.org/ > > > > > > > > > > > _______________________________________________ > pygtk mailing list pygtk@daa.com.au > http://www.daa.com.au/mailman/listinfo/pygtk > Read the PyGTK FAQ: http://faq.pygtk.org/ > > > > _______________________________________________ > pygtk mailing list pygtk@daa.com.au > http://www.daa.com.au/mailman/listinfo/pygtk > Read the PyGTK FAQ: http://faq.pygtk.org/ > > > _______________________________________________ > pygtk mailing list pygtk@daa.com.au > http://www.daa.com.au/mailman/listinfo/pygtk > Read the PyGTK FAQ: http://faq.pygtk.org/ _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
