I am making a GUI for a program that made with visual studio.
The program waits to scan a character from cmd ( with scanf ) and I want to write the character when I am pressing a button.
I tried to use printf() or cout << "" , but it's printing to Qt-creator "Application Output".

Is there a way to write to cmd or maybe to change the application output to be cmd?
Maybe you have another idea how to communicate between the programs?
Thank you very much!