[Lazarus] Fwd: TRadioGroup not found error

Thomas Crone crone at cua.edu
Tue Jan 1 03:44:51 CET 2019


If this is not the right forum for this,  Please tell me where I can post it.

I am getting the same type of message as I got a few weeks ago:

   … '‘EClassNoFound’  with message:
   Class ‘TButton’ not found
   at address 10004A515

I have tried to move to Lazarus from Delphi 4 several times over the past 5 or 6 years, 
and always given up in frustration.

Errors seem to pop up, go away , and come back for no apparent reasons. (some of that, 
of course, could be windows problems…)

I’ve been programming since 1970, first in FORTRAN II, then Algol, Simula, snobol, icon, 
DEC10 assembly, various BASICs, Pascal (Turbo V2 thru Delphi, and on VAX VMS), etc. 
The most recent new language was python on the Raspberry Pi.

Before I retired a few years ago, I volunteered to help with the Lazarus documentation, 
when I couldn’t figure out how to move my collection of units (2D & 3d geometry, i/o routines, 
geographic projections & mapping, music synthesis, etc.) to Lazarus. In Delphi, I could just 
put the .dcu files in the Delphi /lib directory; for the programs I’m now working on, I had to 
include the entire source of my TIndexString unit in the program source.

maybe I should rewrite all my objects in python…

Tom Crone
> Begin forwarded message:
> 
> From: Thomas Crone <crone at cua.edu>
> Subject: Re: [Lazarus] TRadioGroup not found error
> Date: December 15, 2018 at 9:42:45 PM EST
> To: Lazarus mailing list <lazarus at lists.lazarus-ide.org>
> 
> I had some of the TForm as private and some not. 
> 
> When I took everything to of private, the error went away.
> 
> tom
> 
>> On Dec 11, 2018, at 5:23 PM, Vojtěch Čihák via lazarus <lazarus at lists.lazarus-ide.org <mailto:lazarus at lists.lazarus-ide.org>> wrote:
>> 
>> TRadioGroup is in unit ExtCtrls. Lazarus, however, adds it automatically to "uses" when you insert it to form at design-time.
>>  
>> V.
>> ______________________________________________________________
>> > Od: "Thomas Crone via lazarus" <lazarus at lists.lazarus-ide.org <mailto:lazarus at lists.lazarus-ide.org>>
>> > Komu: lazarus at lists.lazarus-ide.org <mailto:lazarus at lists.lazarus-ide.org>
>> > Datum: 11.12.2018 22:58
>> > Předmět: [Lazarus] TRadioGroup not found error
>> >
>> My latest attempt to use Lazarus has given some odd errors…
>> 
>> First it complained about TEdit, so I replaced that with TMemo.
>> 
>> Now it is saying: Class “TRadioGroup” not found 
>> 
>> Do I have to add something manually to the Uses statement?
>> 
>> I’m on Win 7 pro 64bit with Lazarus 1.8.4, 2018-05-19, FPC Ver 3.0.4, SVN Rev. 57972, x86_64 - win64 - win32/win64
>> 
>> Tom Crone crone at cua.edu <mailto:crone at cua.edu>
>> 
>> ----------
>> 
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> 

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