QTk Widgets

Sébastien Doeraene sjrdoeraene at gmail.com
Fri May 4 18:25:31 CEST 2012


Use {System.showInfo Var} instead.
Sébastien

On Fri, May 4, 2012 at 6:21 PM, Khadija EL MAHRSI <
khadija.elmahrsi at gmail.com> wrote:

> Hello,
> Yes, I've figured that much and I remember running into this problem
> before but I can't remember if I was able to display the string in letters
> not the ASCII codes or not. Because when I use {System.show Var}, I get the
> list of ASCII codes while the result I need is for the string in letters to
> be displayed.
>
> Thanks.
>
>
> 2012/5/4 Sébastien Doeraene <sjrdoeraene at gmail.com>
>
>> Hi,
>>
>> In Oz, a String *is* a list of numbers (the ASCII codes of the
>> characters in the string). It's only the way you use it that determines if
>> it is considered as a string or as a list of numbers.
>>
>> Cheers,
>> Sébastien
>>
>>
>> On Fri, May 4, 2012 at 5:23 PM, Khadija EL MAHRSI <
>> khadija.elmahrsi at gmail.com> wrote:
>>
>>> Hi,
>>> I'm having another problem with the Dropdownlist. The value returned by
>>> the command:
>>>
>>> {List.nth {D get($)} {D get(firstselection:$)}}
>>>
>>> is a list of numbers (which I suppose represents the selected virtual
>>> string from the list).
>>> When combined with {L set(...)} the value displayed is really the string
>>> but when I try:
>>>
>>> Var := {List.nth {D get($)} {D get(firstselection:$)}}
>>>
>>> I get the list of numbers instead of the string itself in Var. Any help?
>>>
>>> Thanks.
>>>
>>>
>>> 2012/5/4 Torsten Anders <torsten.anders at plymouth.ac.uk>
>>>
>>>> Dear Khadija,
>>>>
>>>> Great you solved it. Indeed, the graphics in this documentation are
>>>> very distorted.
>>>>
>>>> Best wishes,
>>>> Torsten
>>>>
>>>>
>>>> On 3 May 2012, at 22:41, Khadija EL MAHRSI wrote:
>>>>
>>>> > Hi,
>>>> > Thank you for trying to help. I managed to solve the problem which
>>>> was caused by a silly mistake actually. When I was about to put the part of
>>>> the code which caused the problem, I noticed that I somehow missed the
>>>> handle part in the dropdownlistbox when I copied the code into my
>>>> application (maybe due to the weird way the web page was displayed) which
>>>> is why it didn't work. My mistake.
>>>> >
>>>> >
>>>> > 2012/5/3 Torsten Anders <torsten.anders at plymouth.ac.uk>
>>>> > Dear Khadija,
>>>> >
>>>> > I have not used QTk for years, so I don't remember any of theses
>>>> things I must say.
>>>> >
>>>> > Anyway, I wrote some application once that uses the Listbox widget,
>>>> and that is still working fine under Mozart 1.4.0 (just checked). Also, if
>>>> I remember correctly the Prototyper application uses this widget -- so you
>>>> could check its source out as an example.
>>>> >
>>>> >
>>>> http://www.mozart-oz.org/documentation/mozart-stdlib/wp/qtk/html/node2.html#chapter.prototyper
>>>> >
>>>> > So, for any more specific help I am afraid you need to send us some
>>>> code demonstrating your problem :)
>>>> >
>>>> > Best wishes,
>>>> > Torsten
>>>> >
>>>> > --
>>>> > Dr Torsten Anders
>>>> > Course Leader, Music Technology
>>>> > University of Bedfordshire
>>>> > Park Square, Room A315
>>>> > http://www.torsten-anders.de
>>>> >
>>>> >
>>>> >
>>>> > On 3 May 2012, at 15:07, Khadija EL MAHRSI wrote:
>>>> >
>>>> > > Hello,
>>>> > > I was experimenting with QTk and wanted to use the Dropdownlistbox.
>>>> First of all, the documentation page is weirdly displayed compared to the
>>>> other widgets and secondly (and more importantly), it's not working. The
>>>> part where the label is supposed to display the selected value from the
>>>> list is not working. I've tried making the label display any given string
>>>> instead and it worked.
>>>> > > I've also tried the Listbox widget and noticed that the items
>>>> disappear when selected. Is this normal?
>>>> > > Isn't there a way to have something close to the traditional List
>>>> box or Drop-down list box?
>>>> > >
>>>> > > Thanks.
>>>> > >
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>>>> >
>>>> >
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>>>
>>>
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