QTk Widgets

Khadija EL MAHRSI khadija.elmahrsi at gmail.com
Fri May 4 18:27:48 CEST 2012


What if I wanted to use the content of Var as an argument?

2012/5/4 Sébastien Doeraene <sjrdoeraene at gmail.com>

> 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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