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How to add console window to dialog based / SDI / MDI application

While debugging an application it's often useful to have trace output window for momentary data logging rather then using MessageBox() for this purpose. The simplest method is to create a console window and to redirect standard I/O to it like this:

   AllocConsole();
   freopen("conin$", "r", stdin); 
   freopen("conout$", "w", stdout); 
   freopen("conout$", "w", stderr); 

After that, all printf and cout calls will output to this window. Even input will work for it: you can use getch() from conio.h to pause a thread. Be aware - one process may have only one console window created/attached. See a link below for alternative solution.

Useful links: Codeguru - Write debug output to console window

	Web visualcpp.net msdn.microsoft.com codeguru.com