[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference dssdev::decforms

Title:DECforms
Notice:This is not an official software support channel. Kit info: 4.L
Moderator:DSSDEV::FORMS
Created:Thu Mar 23 1989
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4004
Total number of notes:16520

4002.0. "Overstrike mode on DECWindow ?" by CARDHU::QUINT () Fri May 30 1997 07:05

    VMS 6.2
    DECForms 2.0
    DECWindows 2.0
         
    1 - My customer is trying to switch an edit defaulted field on a DECWindow 
    panel to Overstrike mode because he doesn't want to have to type backspace 
    to empty the field first. 
    I mentionned this is not applicable on such devices, but he is really 
    looking for a workaround. 
    Does anybody have an idea ?
    
    2 - On the same form, he is got a crash and the "noform" error message when
    typing backspace to empty a Password field (Concealed), and then backspace
    once again as the field is empty (I.e., typing backspace 5 times when 4 
    characters were entered).
    This looks like a development but I can't find it.
    Does it look familiar to any of you ?
    
    Thanks and Regards,
    
    Fred.
T.RTitleUserPersonal
Name		DateLines
4002.1IFDL::ZEEBCada ser humano faz o seu proprio destinoMon Jun 02 1997 16:596
Fred,

I will be looking into your questions and will report my findings.

  --Cida Zeeb
4002.2IFDL::ZEEBCada ser humano faz o seu proprio destinoTue Jun 03 1997 16:5412
I looked into the question about overstrike mode for entering data 
into a field and it doesn't seem that there is a workaround at this time.

I wasn't able to reproduce the crash and "no form" error that
your customer is seeing.  Can you send me a small reproducible code
sample so I can further investigate it.

  Thanks,

      Cida Zeeb
4002.3More Info availableCARDHU::QUINTWed Jun 04 1997 13:3912
    I have suggested customer to define a function key to empty the field and
    position to 1st char.
    
    I have also copied a save set containing sample source files that
    provoke the "no-form" error on DECW. I cannot test it myself today as I
    can't get access to a workstation immediatly.
    File is called test.bck located on CROWN:: (Or 49202:: , Address
    48.50).
    
    Thanks again for your help.
    
    Fred.
4002.4Got It !CARDHU::QUINTThu Jun 05 1997 12:1318
    I have finally managed to get access to a DECWindow monitor and could
    easily reproduce the problem.
    The message I get is 
    
    $ forms test appearances test_form.form /layout=VT_LAYOUT_PIXEL
    %CMA-F-EXCCOP, exception raised; VMS condition code follows
    -SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual
    address=00CE2077, PB
    
    	This happens exactly when you pass the beginning of the field with
    the backspace key.
    The trace shows no error.
    
    Source files are still available on CROWN::TEST.BCK or 49202::TEST.BCK.
    
    Any help appreciated.
    
    Fred.
4002.5IFDL::ZEEBCada ser humano faz o seu proprio destinoThu Jun 05 1997 13:575
Fred,

I am copying the files now and will try to reproduce the problem.

  --Cida
4002.6IFDL::ZEEBCada ser humano faz o seu proprio destinoThu Jun 05 1997 17:158
Fred,

Can you tell me which version of CMA (DECthreads) you are runing?

I tried your sample program on our system with DECforms V2.2, VMS 6.2 and 
CMA V2.12 and I cann't reproduce your problem.

  --Cida
4002.7CARDHU::QUINTFri Jun 06 1997 06:3011
    Cida,
    
    I'm running CMA 2.12 as well. 
    
    I saw there are some CMA patches on ALPHA VMS 6.2. I will apply them
    and check if it does correct the problem (I found a similar problem on
    note 3844 here).
    
    Thanks for your help.
    
    Fred.