By the way, this was fixed in 3.18:

Fixed: MULTIVALUE and MULTIVALUECOUNT in *IupFileDlg* when only one file is
selected.

  Maybe you are running an older IUP version?

Best,
Scuri

On Mon, Sep 19, 2016 at 5:06 PM, Antonio Scuri <antonio.sc...@gmail.com>
wrote:

>   Sorry but it works here. I tested under Ubuntu 16 (Linux44_64).
>
>   This test: iup/html/examples/tests/predialogs.c
>
>   When pressing "o" shows a dialog that if I select only one file results:
>
> OK
>   File exists - VALUE(/tecgraf/iup/html/examples/tests/button.c)
>   DIRECTORY(/tecgraf/iup/html/examples/tests/)
>   MULTIVALUECOUNT(2)
>   MULTIVALUE0 = /tecgraf/iup/html/examples/tests/
>   MULTIVALUE1 = button.c
>
>   Can you test the same code?
>
> Best,
> Scuri
>
>
>
> On Sun, Sep 18, 2016 at 10:25 PM, Antonio Scuri <antonio.sc...@gmail.com>
> wrote:
>
>>   Ok. I'll try to reproduce the problem here and let you know what's
>> going on.
>>
>> Best,
>> Scuri
>>
>>
>> On Sun, Sep 18, 2016 at 9:58 PM, max chen <trls...@gmail.com> wrote:
>>
>>> sorry
>>> IUP version is iup-3.19.1_Linux44_64_lib
>>>
>>> 2016-09-18 9:31 GMT+08:00 Antonio Scuri <antonio.sc...@gmail.com>:
>>>
>>>>   OK. Which IUP version?
>>>>
>>>> Em 17/09/2016 22:18, "max chen" <trls...@gmail.com> escreveu:
>>>>
>>>>> ​Hi,
>>>>>
>>>>> I'm using GTK driver in ubuntu 16.04 x64​
>>>>>
>>>>>
>>>>>> Which driver? Windows or GTK?
>>>>>>
>>>>>>   About the colored transparent box, using CD or any other drawing 
>>>>>> toolkit.
>>>>>> But when using CD must use the ContextPlus drivers, because the regular
>>>>>> drivers GDI and GTK2 does not have transparency. Only GDI+ and GTK3 using
>>>>>> Cairo.
>>>>>>
>>>>>> Best,
>>>>>> Scuri
>>>>>>
>>>>>>
>>>>>> On Tue, Sep 13, 2016 at 11:51 PM, max chen <trlsmax@...> wrote:
>>>>>>
>>>>>> > Hi,
>>>>>> >
>>>>>> > I use IupFileDlg to select files, when set MULTIPLEFILES = Yes and only
>>>>>> > select only one file, MULTIVALUECOUNT return 0 and MULTIVALUE0 and
>>>>>> > MULTIVALUE1 return NULL.
>>>>>> > Is this a bug ?
>>>>>> >
>>>>>> > And, I have another question, how to draw a colored transparent box in 
>>>>>> > a
>>>>>> > canvas ?
>>>>>> >
>>>>>> > Regards
>>>>>> > Max
>>>>>> >
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>>>>>> >
>>>>>> >
>>>>>>
>>>>>>
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