OpenEuphoria

Re: [WIN32Lib] programmatically select tab item?

• Posted by Dan Moyer <DANIELMOYER at prodigy.net> Mar 23, 2002
• 851 views

Tone,

Looks like I spoke too soon, your example manifests the same problem I
encountered:  child controls of the tabitems aren't properly "moved" to the
remaining tabitems when a tabitem is deleted.  Look at the folder numbered
*four* in your example, you'll see that it has the group control for folder
# *THREE* in it.

  I expected that deleting a tabItem from a folder would "carry" the
associated controls from all the succeeding tabitems with them, but instead
the original assignments appear to be "copied" to the new tabitems; so,
folders 1 & 2 have the proper (old) assignments of groups 1 & 2, but after
deleting folder "three", folder named "four", in *position* number 3, shows
group #3 in it.

So, does anyone know if there is some way to "re-assign" controls after
they've been created, so I could make the lists that are displayed with each
tabitem be correct?

I tried "destroy"ing the deleted tabitem, but it seems that may have
actually destroyed the entire tabCONTROL.  Also, in my actual program, I did
delete the deleted folder handle from the handle variable, but that was just
so correct data would be written to a file afterward, I don't think that
could possibly have any effect on the association of control to parent.

Dan

Here's an example program I made to test what Tone showed me:

-- code begins:

--  code generated by Win32Lib IDE v0.10.4

include Win32Lib.ew
without warning


--  Window Window1
global constant Window1 = create( Window, "Window1", 0, Default, Default,
400, 300, 0 )

constant
    aStatusBar      = create( StatusBar, "", Window1, 0, 25, 20, 20, 0)

global constant aTabControl = create( TabControl, "TabControl", Window1, 48,
56, 292, 204, 0 )

for n = 1 to 5 do  -- make 5 tab items:
 Tabs &=  create(TabItem,"TabItem" & sprint(n), aTabControl, 0, 0, 0, 0, 0 )
end for

for n = 1 to 5 do  -- make 5 lists, one for each tab item:
  Lists &= create( List, "List" & sprint(n), Tabs[n], 24, 36, 248, 140, 0 )
end for

global constant PushButtonDelTab = create( PushButton, "Delete Selected Tab
Item", Window1, 88, 8, 184, 32, 0 )
end for

procedure onClick_PushButtonDelTab()
object tabSelected
  tabSelected = sendMessage(aTabControl,TCM_GETCURSEL, 0 ,0 )
  setText(aStatusBar, sprint(tabSelected))
  result = sendMessage(aTabControl,TCM_DELETEITEM,tabSelected, 0 )
  if sendMessage(aTabControl,TCM_GETITEMCOUNT,0,0)= tabSelected then
     --last tab removed, so gotta backup one:
     result = sendMessage(aTabControl,TCM_SETCURSEL,tabSelected-1, 0 )
  else
    result = sendMessage(aTabControl,TCM_SETCURSEL,tabSelected, 0 )
  end if
 -- destroy(Lists[tabSelected+1])-- HANDLE ERROR, maybe destroys whole
tabcontrol??
end procedure

onClick[PushButtonDelTab]   = routine_id("onClick_PushButtonDelTab")

WinMain( Window1, Normal )

-- code ends



----- Original Message -----
From: <tone.skoda at siol.net>
To: "EUforum" <EUforum at topica.com>
Sent: Saturday, March 23, 2002 3:19 AM
Subject: Re: [WIN32Lib] programmatically select tab item?


>
> Dan Moyer wrote:
> > how would I use
> > TCM_DELETEITEM & TCM_SETCURSEL
> > in a program using Win32Lib?
>
> It's pretty simple, below is example. There may be some issues with
Win32Lib
> because it's not expecting that you do this.
> To Derek: These actions should become possible to do this with Win32Lib's
> functions
> deleteItem () and selectItem () (this one doesn't exist yet)
>
> Syntax:
>
> Void = sendMessage (tabControl window, message (action), index of tab item
> to delete starting at 0, 0)
>
> -- select and delete tab items.exw
>
> without warning
> with trace
> include win32lib.ew
>
> integer win, tc, t1, t2, t3, t4
> integer te1, te2, te3, te4
> integer g1, g2, g3, g4
> object Void
>
> procedure main()
>     win = createEx(Window, "Test Tabcontrol", 0, 0, 0, 640, 480, 0, 0)
>     tc  = createEx(TabControl, "", win, 5, 25, 600, 400, 0, 0)
>     t1 = createEx(TabItem, "One",   tc, 5, 25, 590, 390, 0, 0)
>     t2 = createEx(TabItem, "Two",   tc, 5, 25, 590, 390, 0, 0)
>     t3 = createEx(TabItem, "Three", tc, 5, 25, 590, 390, 0, 0)
>     t4 = createEx(TabItem, "Four",  tc, 5, 25, 590, 390, 0, 0)
>
>     g1 = createEx(Group, " group 1", t1, 5, 25, 400, 300, 0, 0)
>     g2 = createEx(Group, " group 2", t2, 5, 25, 400, 300, 0, 0)
>     g3 = createEx(Group, " group 3", t3, 5, 25, 400, 300, 0, 0)
>     g4 = createEx(Group, " group 4", t4, 5, 25, 400, 300, 0, 0)
>
>     te1 = createEx(Combo, "control1", g1,  5, 25, 200, 125, 0, 0)
>     te2 = createEx(Combo, "control2", g2, 10, 27, 200, 125, 0, 0)
>     te3 = createEx(Combo, "control3", g3, 15, 29, 200, 125, 0, 0)
>     te4 = createEx(Combo, "control4", g4, 20, 31, 200, 125, 0, 0)
>
>     -------------------- SELECT TAB ITEM --------------------
>     -- select second item (number 1)
>     Void = sendMessage (tc, TCM_SETCURSEL, 1, 0)
>
>     -------------------- DELETE TAB ITEM --------------------
>     -- delete third item (number 2)
>     Void = sendMessage (tc, TCM_DELETEITEM, 2, 0)
>
>     WinMain(win, Normal)
>
> end procedure
>
> main()
>
>
>
>