how to set Autoscroll in Listbox control

[John Montenigro]

In main code:

   ListboxFlags = %ws_child Or %ws_visible Or %ws_tabstop Or %ws_vscroll Or %lbs_multiplesel Or %lbs_extendedsel
   'ListboxFlags = ListboxFlags Or %es_autovscroll    ' Or %lbs_disablenoscroll  

   Control Add ListBox, hDlg, %LISTBOX, , 5, 5, 490, 50, ListboxFlags, %ws_ex_clientedge

I know, ES_AUTOSCROLL doesn't work with the listbox... but I had to try!


In the dialog's callback:

         ListboxCount = SendMessage(hList, %LB_GETCOUNT,  0, 0) 'Ask listbox for items count
         SendMessage(hList, %LB_ADDSTRING, ListboxCount, StrPtr(sBuffer)) 'Add message to listbox
         SendMessage hList, %LB_SETCURSEL, ListboxCount, 0 'Go to last listbox position

As lines are added and fill the box, the Vertical scrollbar appears (as desired).

I'd like the text to scroll so that the last line added is displayed as the last line in the box. This will scroll the rest "upward"...

Although I've read SDK and Help info, searched the fourm, and tried various values, I'm presuming there's something in the LB_SETCURSEL message that I haven't found yet.

Can anyone provide me a pointer to relevant information?
Thanks!

[Richard Angell]

%lb_setcaretindex

[Michael Mattias]

ListView_EnsureVisible ()

As demo'd here:
Use Listview control as a console. September 13 2003.

Oops, that's for a listVIEW, not a listBOX.

Wait a minute, this is forgiveable... thread subject says listVIEW, but the fine print says listBOX.

[John Montenigro]

Richard,

Here's my edited code:

               ListboxCount = SendMessage(hList, %LB_GETCOUNT,  0, 0) 'Ask listbox for items count
               SendMessage(hList, %LB_ADDSTRING, ListboxCount, StrPtr(sBuffer)) 'Add message to listbox
              ' SendMessage hList, %LB_SETCURSEL, ListboxCount, 0 'Go to last listbox position      
               SendMessage hList, %lb_setcaretindex, ListboxCount+1, 0  'yay!!

And by adding 1 to ListboxCount, the dotted rectangle does not display.

Problem solved! Thanks!




Michael,

Sorry! I'd edit the thread name if I could, but I don't know how.

But no good effort is wasted - ListVIEWs are close on my list of things to learn, so I'll check out your code reference soon.

Thanks!

[Gary Beene]

Got to edit your thread, then advanced mode. It will let you edit the thread title.

[John Montenigro]

Done! Hmm... but even after a refresh, it's not showing up changed on the main forum page... Oh, well - at least the proper subject is now on the first message.

thanks for that info, Gary!

[Mike Doty]

Without winapi:

LISTBOX GET COUNT hDlg???, %LISTBOX TO ListboxCount&
LISTBOX SELECT    hDlg???, %LISTBOX,   ListboxCount&
LISTBOX UNSELECT  hDlg???, %LISTBOX,   ListboxCount&