Am 24.02.2023 um 21:35 schrieb John Landmesser via lazarus:
Hi,
I tried to extend an existing and converted Delphi 7 project by adding
new form to the converted Delphi 7 project.
But that leads to an AV-error if i try to show this new form by code!
I normally convert Delphi projects manually - it's more work, but I know
what's happening then... And the manual conversion of your test project
worked flawlessly.
But anyway: When trying to use the IDE's Delphi converter I saw two
problems:
/1/ The newly added form is named Form1 (type TForm1) and this screws up
the entire project since these identifiers already exist in the Delphi
project. I can circumvent this issue when I close the IDE after
conversion and create the new form only after a restart.
/2/ But this does not prevent the other issue: The IDE refuses to add
the new form to the list of auto-created forms, and therefore a call of
"Form2.Show" in the OnClick handler of your button on Form1 must fail. I
have no idea what prevents the new form from being auto-created. As a
work-around I added the line "Application.CreateForm(TForm2, Form2);" to
the project unit manually (and Unit2 to its uses clause). - This way it
works.
Please file a bug report.
--
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