De: Scott Morgan via Iup-users <iup-users@lists.sourceforge.net>
Enviado: quarta-feira, 14 de abril de 2021 15:40
Para: iup-users@lists.sourceforge.net
Cc: Scott Morgan
Assunto: Re: [Iup-users] Issue with iup.list and showdragdrop
On 14/04/2021 15:47, Scott Morgan via Iup-users wrote:
> Running into an issue with IUP unexpectedly exiting app
>
> Simple Lua script:
>
> dlg = iup.dialog{iup.list{expand="YES",showdragdrop="YES"}}
> dlg:showxy(iup.CENTER,iup.CENTER)
> iup.MainLoop()
>
> Now click on the lower area of the list box (below the empty list item
> placeholder), the executable quits without warning.
>
> Remove the showdragdrop setting and everything works fine.
>
> This is on Win10.
>Further examination suggests the problem is around src/win/iupwin_list.c
>line 1098.
>The result of winListGetItemData isn't checked (returns NULL in this
>situation) and immediately used on the next line (itemdata->hBitmap)
Correct, winListGetItemData can return NULL.
It's needed protect itemdata against NULL.
regards,
Ranier Vilela
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