Changing tool bar button text????

[Bern Ertl]

I've been experimenting with Lance's DDT tool bar sample and I cannot figure out how to change the text for a button during runtime. Ie. when a user clicks on a button, I'd like to change the text associated with it.

I've tried sending a second %TB_ADDSTRING message with a new string (complete), but that didn't work. I don't see any other messages in my Win32 Help file that would do it either...

Help!



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Bernard Ertl

[Borje Hagsten]

A tricky one. Strange that Microsoft hasn't given us a way to do this
easily. Here is what I have used. I add a string, delete a button and
create it again, with pointer to added string. It works, but there may
(must) be better ways. You probably have to adjust some things, like
changing tb.iString, so it really points to the new, added string:

  LOCAL tb AS TBBUTTON, txt AS STRING
  txt = " Changed! " & $NUL & $NUL 'add a string to the toolbar's string list
  SendMessage hToolBar, %TB_ADDSTRING,  0, STRPTR(txt)
 
  tb.fsState   = %TBSTATE_ENABLED
  tb.fsStyle   = %TBSTYLE_BUTTON
  tb.iBitmap   = %STD_FILEOPEN
  tb.idCommand = %IDM_OPEN
  tb.iString = 7 'was 6, added one, so use the new, nr 7..
 
  SendMessage hToolBar, %TB_DELETEBUTTON,  0, 0          'delete old button
  SendMessage hToolBar, %TB_INSERTBUTTON,  0, VARPTR(tb) 'insert new at same pos (it will use the new string)

BTW, a word of warning: Changing the text may also change the size of
all buttons in the toolbar, if text is wider. Be careful, so buttons
don't end up becoming too wide for the toolbar.
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[This message has been edited by Borje Hagsten (edited February 16, 2001).]

[Bern Ertl]

Thanks Borje, I'll experiment with that.



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Bernard Ertl

[Guest]

Hi Bern,
Just a thought, but you might want to also go over to msdn
and check out the TB_SETBUTTONINFO message too.

Adam

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