Differences between {$MODE Delphi} and {$mode objfpc}{$H+}

[PeterX]

Hi all,

I would like to document the differences between {$MODE Delphi} and {$mode objfpc}{$H+}
but not only as on https://www.freepascal.org/docs-html/prog/progap4.html#progse62.html
because there's several issues that are more complex to solve
when moving an old DELPHI project to Lazarus' LCL.

Is there a WIKI page or HELP page to write things like that ?

[Handoko]

This page has explanation about the differences:
http://wiki.freepascal.org/Code_Conversion_Guide#Syntax_differences

[Thaddy]

{$MODE Delphi} and {$mode objfpc}{$H+}

What the {$H+} doing there? {$MODE DELPHI} can be in mode {$H-}.... So that's not a difference at all.

[PeterX]

This page has explanation about the differences:
http://wiki.freepascal.org/Code_Conversion_Guide#Syntax_differences

Thanks a lot for this link, I didn't know it exists !

I'm working on converting a large project (I didn't write it ..)
which does not jet run well under Lazarus.
So I have to achieve that the project compiles under both Lazarus and Delphi 5.

The page does not show how to write for both compilers ..
I will add some explanations there ..

[PeterX]

What the {$H+} doing there? {$MODE DELPHI} can be in mode {$H-}....

Looks to me like {$H+} is default, when creating a new UNIT for object pascal.
But You're right, no question.