how do I write to stdout from an MFC program?

Question

MFC programs can't normally write to stdout. MFC does something weird with the stdout/stdin pipes during startup and anything you write (for example doing a printf("hello");) just goes to /dev/null.

Does anyone know how to successfully write to stdout from an MFC program?

Thanks for reading.

Answer 1

Use AllocConsole function to create a console for writing into. The following article explains how to use it to print to console.

Creating a console for your MFC app's debug output

Dont forget to FreeConsole once you're done with it.