Write to the parent's console regardless of process creation flags

parentconsole.c

#include <windows.h>
#include <stdio.h>

int main(void) {
    FreeConsole();
    AttachConsole(ATTACH_PARENT_PROCESS);
    freopen("CONOUT$", "w", stdout);
    puts("This will go to the parent's console no matter what process creation flags were used");
}