On 2021/12/08 22:44, Bo Berglund via lazarus wrote:
I need to port an old Delphi program to FPC/Lazarus and it contains two
TRichEdit components.
When I try to open the form in Lazarus 2.0.12 on Windows 10 with Fpc 3.2.0 I get
an error because the TRichEdit component does not exist....
Is there some non-standard package I could install (from OLPM or similar) in
order to get it working again?
Not really. The problem is TRichEdit was just a wrapper for the MS
Windows RichEdit component, which was born before the days of HTML
componenets, so far inferior to anything new. It does not exist anywhere
else in the world and so not useful on a cross-platform development
system. Not sure if anybody reverse-engineered the RichEdit
functionality, but if Google doesn't know then I am relatively sure
there isn't.
I have a new laptop now and I have no new Delphi version installed (except for
Delphi 7 with the no-nonsense license). I am only using Fpc + Lazarus nowadays.
Another question while I am here:
---------------------------------
The form I have problems with is a special calculation sheet in one single form,
which is part of the source program.
But I only need to port this form into the new Lazarus program so I tried to
create a new program from scratch and intended to replace the default form as
the main form.
But I don't know really how to do this...
So How can I:
1) Replace the main form of a Lazarus program with another form?
or
2) Create a new program in Lazarus where I can specify an existing form as the
main program form.
Either of these will work, but I don't really know how to do any of them.
This is quick to do -
via the GUI:
In the Project Options, simply go to "Forms" and make sure the topmost
one is the one you want to load as your main form.
via Code:
Open the program file (Project --> View Source) and make sure in the
code section the very first "Application.CreateForm(...)" that appears
is the one for your desired main form.
Basically TApplication regards the first form it opens as the "main"
form, which simply means that that form is shown automatically first
(unless specified not to) and that it will exit when that form closes
(and a few more small things).
--
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