See also: http://thesiteformerlyknownas.zachtronicsindustries.com/notepad-weekend/ http://thesiteformerlyknownas.zachtronicsindustries.com/note... with http://t

See also: http://thesiteformerlyknownas.zachtronicsindustries.com/notepad-weekend/ http://thesiteformerlyknownas.zachtronicsindustries.com/note... with http://thesiteformerlyknownas.zachtronicsindustries.com/images/notepad_hijack_framework.cpp http://thesiteformerlyknownas.zachtronicsindustries.com/imag... linked in the comments. I had a lot of fun writing a few small games with this method, don't think I ever shared them anywhere though. Here are the key bits: char* c = "Hello World!"; HWND hwnd = FindWindow("Notepad", NULL); HWND edit = FindWindowEx(hwnd, NULL, "Edit", NULL); SendMessage(edit, WM_SETTEXT, NULL, (LPARAM)c);