h6. [[WindowManager]] h6(. » [[WindowManager SWI Calls|SWI Calls]] h6((. » [[Wimp_Poll|Wimp_Poll]] h6(((. » [[Reason Codes|Reason Codes]] h6((((. » Redraw_Window_Request h2. Redraw_Window_Request h5. (Reason Code 1) |_<. Exit | | |<^. Block | | |>^. +0|Window handle | h4. Use This code is returned from [[Wimp_Poll|Wimp_Poll]] and indicates that a window is in need of updating and must be redrawn. h4. Notes To update and redraw a window that has been identified as requiring updating, applications should follow the process below: # Call [[Wimp_RedrawWindow|Wimp_RedrawWindow]] # Start a loop by calling [[Wimp_GetRectangle|Wimp_GetRectangle]] to return a rectangular part of the window that needs updating # Loop back to fetch next rectangular part of window needing updating until done h4. See also * [[Reason Codes|Reason Codes]] * [[Wimp_GetRectangle|Wimp_GetRectangle]] * [[Wimp_Poll|Wimp_Poll]] * [[Wimp_RedrawWindow|Wimp_RedrawWindow]]