How to write output lines containing variable values to the output window?

12 hours ago 3
ARTICLE AD BOX

I'm working on a C++ application, where I want to add some lines to the output window. This must work in Release mode, as the application is a service, which does not respond fast enough in debug mode.

In order to add information to the output window, StackOverflow's AI assistant (session ID "74e0b81f-f3bb-42aa-8c72-cdc89f3a4afc") keeps telling me:

Either how to program this myself.

Either to use three lines of code, just for writing one simple line.

This is (more or less) what I want to do:

Write_To_Output_Window("Value=[%d]", v, ...)

You see: no declaration of the string first, then filling it up, and only then writing to output: no, just a single line of code.

I just can't imagine such a thing does not exist yet, can anybody tell me how to do it (without needing to program it myself)? (It seems that TRACE is such a function but it only works for MFC programs, how can I know my program is MFC?)

(For your information: I tried using TRACE() but that seems to be defined as __noop)
I'm using a recent version of C++: ISO C++20 Standard (/std:c++20)

Read Entire Article