Hi Vasilis! You can try using tkpath extension as an example of such drawing. But there is a simpler way. You can use regular Frame configured with empty background value:
frame['background']='' Such frame option stops Tk frame refresh so your drawing will not be cleared after different window events. To start drawing you just need to get window ID or XID+Display (for XWin system) from Tcl interpreter. Also you can using multiplatform built-in Tk C-functions for drawing to simplifity your code base. But unfortunately this functionality doesn't provide antialiased graphics. Regards, Igor Novikov sK1 Project http://sk1project.org On Fri, Mar 5, 2010 at 10:14 AM, Vasilis Vlachoudis < vasilis.vlachou...@cern.ch> wrote: > Hi all, > > I have an application that it requires to plot the result from some heavy > calculation. Python is slow, so I am writing the calculation part as a C++ > extension for python. Is it possible to draw directly to a Canvas opened > from Tkinter from the C++ extension, in order to avoid useless transfer of > data from C++ to python to tkinter? > > vasilis > > > _______________________________________________ > Tkinter-discuss mailing list > Tkinter-discuss@python.org > http://mail.python.org/mailman/listinfo/tkinter-discuss >
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