Win32 Debugging Macros

Question

What is the standard macro used to write text to the output window in Win32 (outside MFC)? I am looking for something which the pre-processor conditionally excludes from the release build.

(This might sound like SO sacrilege but I've merely forgotten this one and there was too much noise on Google. We are on the verge of handcrafting our own.)

Answer 1

I don't believe there's a standard, best to roll your own.

However, you might want to consider OutputDebugString(char*). It'll send output to the debug channel.

Answer 2

There is a trace macro for this, which is a debug-only printf-style output function. Besides that, you might want to give the _RPT macros a try.

Answer 3

Maybe you're thinking of ATLTRACE? Not quite "the standard macro", but pretty close, I guess.