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Re: Update text widget [message #65242 is a reply to message #65240]

Thu, 19 February 2009 10:10

titan
Messages: 59
Registered: March 2006

Member

Hi J.H.,
excuse me if I was too cryptic in my previous message.

>
> 1) I'm not sure where your events are supposed to be coming from.
> Since all of your text widgets are unsensitive they can't produce any
> events and you have no buttons to click, slider to mover , etc.
What I want to do is to change the status of the text widget I create
from SENSITIVE = 0 to SENSITIVE=1 after a series of calcolus is
performed. For example consider a simple for cycle

FOR i = 0, 5000 DO BEGIN
Print, i
ENDFOR

once this cycle is finished I would like to communicate it to the
event handler and change the status of the corresponding row making it
sensitive
I hope now I was clearer than before

> 2) In the event handler, you are using variables that you defined in
> the my_widget_text but have not passed in any way to the event
> handler. The event handler doesn't know what text_1 or text_1_msg
> are. One common way to handle this type of issue is to create a
> pointer to a structure that contains all of the information that your
> event handler might need. Then set the uvalue of you top level base
> to that pointer. I prefer to do this kind of stuff as an object.
> This allows you to define the widgets as member data and have access
> to all of them throughout the event handler.

unfortunately I don't know much about pointer that's why I was trying
to use the keyword GET_UVALUE but now I understand that it is
incorrect :o(

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[Message index]

		Re: Update text widget By: titan on Fri, 20 February 2009 03:01
		Re: Update text widget By: T.H. on Thu, 19 February 2009 12:32
		Re: Update text widget By: David Fanning on Thu, 19 February 2009 11:51
		Re: Update text widget By: titan on Thu, 19 February 2009 10:29
		Re: Update text widget By: titan on Thu, 19 February 2009 10:10
		Re: Update text widget By: Michi on Thu, 19 February 2009 07:55
		Re: Update text widget By: David Fanning on Thu, 19 February 2009 06:27
		Re: Update text widget By: T.H. on Thu, 19 February 2009 03:33

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