Re: Continuous variable updation in a text box

[Jim George <jimgeorge gmail com>]

It wouldn't matter too much, since most screens would only have a 
refresh rate of 60-120 Hz, which is also much higher than what most 
people can even see.

I've handled such cases by using g_idle_add when I get an update of the 
variable's status, and have the idle function update the text box. I 
preserve the event source ID for the next call, and check if that source 
is still available. If so, I remove the event using g_source_remove and 
add a new idle event. This way, the most recent update is shown on 
screen the next time my program goes idle. The idle function then marks 
the source as free, by setting it to zero.

-Jim

Ardhan Madras wrote:
> So you will need call textbox insertion (update) 1000 times per second or the textbox get updated every 1ms, my question is: Can you see it changes correctly with given cycle?
>
> --- adeelmalik78 yahoo com wrote:
>
> From: Adeel Malik <adeelmalik78 yahoo com>
> To: gtk-app-devel-list gnome org
> Subject: Continuous variable updation in a text box
> Date: Tue, 10 Mar 2009 02:48:15 -0700 (PDT)
>
> I intend to monitor the variable's value (acquired via data acquisition hardware) at a rate of around 1,000 times per second.
> I haven't used textboxes before in GTK+. Could anyone suggest how to update the value of a variable in a textbox etc., at this rate.
>  
> Thanks,
> Adeel
>
>
>       
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