Hello World-Prog into DOS box
lazarus / 67-Windows

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McWilliamsPete · 2020-11-12 20:39

in Win 10 i want to test output "Hello World" to a DOS-box from IDE
with F9 start.
I get the DOS-box, but Writeln shows nothing.
Are there sample instructions/a demo prog as to how to run a DOS-box?
Thanks
Pete

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lucamar · 2020-11-13 00:32

Did you use "Host application" in "Run parameters" to open the program
in a console (if that's what you mean by "DOS box")?

If so, the normal F9 runs the program inside a debugger session so it
might not work as it should through an intermediate "launcher": the
debugger might try to debug the host application instead of your
program. Try using "Run without Debugging" and see if that works.

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ASBzone · 2020-11-13 04:36

Quote from: McWilliamsPete on November 12, 2020, 09:39:35 pmin Win 10
i want to test output "Hello World" to a DOS-box from IDE with F9
start.
I get the DOS-box, but Writeln shows nothing.
Are there sample instructions/a demo prog as to how to run a DOS-box?
Thanks
Pete
Can you show us the program you used to perform this test?

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McWilliamsPete · 2020-11-13 11:55

I started again fresh and found a project option for "console
application" (Konsolenanwendung). Now it works, Thanks!

Program:
Program Test_Hello_World (input, output);
var
   sDummy                : String;
begin
   writeln ('Hello, World!');
   read (sDummy);
end.

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Bart · 2020-11-13 12:32

Unless you use mode Iso, you do not need the (input, output)
parameters.

Bart