[R] R Tcl/Tk [MacOSX] TkButton Problem

[Duncan Murdoch]

On 11-02-27 10:09 AM, Stefan Richter wrote:
> Hi,
>
>> On 11-02-27 7:31 AM, Stefan Richter wrote:
>>> Hi,
>>>
>>> I have a tktoplevel window and in it a tkbutton:
>>>
>>> AUS<- function()
>>> {
>>> 	foo(parameters);
>>> }
>>> AUSButton.but<- tkbutton(tt,text="OK",command=AUS)
>>>
>>> The function foo(...) does a time-consuming calculation, and during this calculation there is printed some progress information to the console.
>>>
>>> My problem: When I click the button "OK", the tktoplevel window and the R console don't react anymore, and there is nothing printed to the console until the calculation is finished (then all informations are printed out in one step).
>>> If I simply execute foo(...) in the console, the progress information is printed out step by step, as I want.
>>>
>>> Is there a possibility to change the call of foo(...) in this way that R and the window don't stop responding?
>>
>> The flush.console() function will cause R to display pending text if you're running in the GUI.
>>
>> Duncan Murdoch
>
> Thank you for your reply!
> I tried it and put  flush.console() after each print(...), but again nothing happend until the calculation was finished. I don't think the problem is the "output procedure".
> It looks as if R would crash when I click on the button "OK" (but it does'nt crash, it is only calculating and doesn't response until it is ready).
> So I think the function foo(...) has to be called in another way (?)

I think you'll need to post a complete example to illustrate the 
problem.  I'd suggest posting it to the R-sig-mac list, since it seems 
to be a problem specific to that platform.

Duncan Murdoch