QuickWin was a porting library] to quickly port MS-DOS style text mode programs into Microsoft Windows. This was more so popular for versions of Windows that lacked a console (Windows 3.0, Windows 3.1).
QuickWin could provide basic stdio functions, however it had no cursor control.
It was largely used as a stopgap measure to get simple programs into Windows, and away from the cluttered DOS Extender market. The tools for QuickWin tended to be significantly cheaper then the DOS Extender tools of the time, and the deployment costs of Windows was cheaper then many extender royalties. Popular languages that included QuickWin functionality was for 16-bit Microsoft Fortran & C.