Question

I recently had to do some changes in some Delphi code. Therefore, I have some basics questions:

1. Generally, how do I output to the console?
2. How do I output to the console with fx that is a string variable?

I started using OutputDebugString, but I couldn’t get it working with a variable.

Answer 1

You can write a wrapper function to take care of the variables passed to OutputDebugString as it expects a PChar.

Something like:

procedure DebugMsg(const Msg: String);
begin
    OutputDebugString(PChar(Msg))
end;

There is a useful reference for debugging techniques here.

And if your Delphi is a bit rusty there’s the ever useful Delphi Basics site. I use it a lot 🙂