Re: Faulty Drag Data under QT?

[Claus Dietrich <claus.dietrich@xxxxxxxxxx>]

Am 12.02.26 um 14:15 schrieb Claus Dietrich:
> Am 12.02.26 um 12:35 schrieb Bruce Steers:
> > On Thu, 12 Feb 2026, 10:52 Claus Dietrich, 
> > <claus.dietrich@xxxxxxxxxx> wrote:
> >
> >     When I drag a file from Nemo and drop it into my app (gb.gui.qt),
> >     the
> >     following 3 lines ....
> >
> >     Public Sub Form_Drop()
> >          Print "Drag.Type:"; Drag.Type
> >          Print Drag.Data
> >     End
> >
> >     deliver following strange output in the IDE console:
> >     Drag.Type: 1
> >     0:-8:436:20e/claus/Bilder/Bildschirmfoto%20vom%202026-02-08%2016-09-59.png
> >
> >     When I switch from gb.gui.qt to GTK+3 the IDE console output is
> >     Drag.Type: 1
> >     file:///home/claus/Bilder/Bildschirmfoto%20vom%202026-02-08%2016-09-59.png
> >
> >     Do we have a bug here?
> >     Best regards
> >     Claus
> >
> >
> > No.
> > Drag.Data is the raw data and it's format can vary depending on toolkit.
> >
> > You should avoid Drag.Data and use Drag.Paste
> >
> > Then you should get better results.
> >
> > Also remember Drag.Type is used mostly only to define between 
> > drag.image or some kind of text format.
> >
> > The format to use for drag.paste (the mime format) will be in either 
> > Drag.Format or one of Drag.Formats[]
> >
> > Drag.Type equaling Drag.Text does not mean you're going to get 
> > text/plain mime type.
> >
> > Respects
> > BruceS
>
> Thanks! This helped me further, however ...
>
> The property Drag.Formats of dropped file paths from Nemo provides:
>
> index 0:      x-special/gnome-icon-list
> index 1:      text/uri-list
> index 2:      text/plain
> index 3:      text/plain;charset=utf-8
>
> Only when I use
>
>        Print Drag.Paste("text/plain;charset=utf-8")
>
> or
>
>        Print Drag.Paste("text/plain")
>
> I get usable plain file paths, which will do the job and I will go 
> ahead with this in my app.
>
> However, what made me wondering was, that
>
>        Print Drag.Paste("text/uri-list")
>
> provided the same strange output like from the Data-Property. The 
> context help to Drag.Paste says:
>
> "Since 3.18
>
> If _Format_is |"text/uri-list"|, then the method returns a string 
> array of file paths corresponding to the decoded URIs."
>
> This statement seems to be wrong because it returns a single string 
> with all file paths delimited by a LF and the paths returned have the 
> same strange format as provided by the Data property. So either this 
> context help is wrong or this function is buggy.
>
> Do we really have to live with a difference between QT and GTK+3 in 
> this context?
>
>
> Best regards
>
> Claus
Forget it - finger trouble. I used a faulty Format for Drag.Paste( ). 
The context help is correct.

Bruce: Your suggestion

  If Drag.Formats.Exist("text/uri-list") Then
    aFiles = Drag.Paste("text/uri-list")
    Print aFiles.Join("\n")
  Endif

is exacly what I needed and works perfectly.

Thanks!

Claus