Linux analog of windows mesages

[Baltazar]

Hi Guys!
I am not a Linux guy but if I want to port my lazarus apps to Linux , where can I find the guidelines  say, to port windows messaging code to Linux counterpart?

[benohb]

On Linux will be more freely programmatically

What do you mean "windows messaging code"

[Leledumbo]

Hi Guys!
I am not a Linux guy but if I want to port my lazarus apps to Linux , where can I find the guidelines  say, to port windows messaging code to Linux counterpart?

Linux doesn't use message passing, most of its API calls are direct function call. But LCL has an abstraction of it that works across all supported platforms: http://wiki.lazarus.freepascal.org/LCL_Messages
There's no definitive guide AFAIK, but a common rule is: http://wiki.lazarus.freepascal.org/Code_Conversion_Guide#Major_unit_differences_between_Lazarus_and_Delphi
Note that not every messages are available in both, but there are common subset.

[Thaddy]

The first thing you should try is simply recompile on linux.
If your code relies heavily on low-level message passing you can run into trouble, though. (e.g using the platform specific  windows unit instead of lclintf and family)
You can ask questions here on a case per case basis for the ones you can not solve yourself.

[Baltazar]

Thank you all. I think the info from @LeleDumbo is sufficient.

What do you mean "windows messaging code"

Sorry for compounded statement  . It only means part of source codes having Windows messaging API calls.

I am not a WinAPI heavy user though. It's just for those stuff like MDI forms created at runtime. The only way to access its public members  is through APIs (ie use of handles) and not through standard VCL access mechanism.

[Thaddy]

Well, MDI is notoriously difficult to port....

[Baltazar]

Yup. I am exploring now the TDI.