xrefresh - refresh all or part of an X screen

-white    Use a white background.  The screen just appears to flash quickly, and then repaint.

       -black    Use  a  black  background.   This  can  be somewhat disorienting as everything goes black for a
                 moment.

       -solidcolor
                 Use a solid background of the specified color.  Try green.

       -root     Use the root window background.

       -none     This is the default.  All of the windows simply repaint.

       -geometryWxH+X+Y
                 Specifies the portion of the screen to be repainted; see X(7).

       -displaydisplay
                 This  argument  allows  you  to  specify the server and screen to refresh; see X(7).

       -version  This argument prints the program version and exits.

       Jim Gettys, Digital Equipment Corp., MIT Project Athena

X Version 11                                     xrefresh 1.1.0                                      XREFRESH(1)

       It should have just one default type for the background.

Xrefresh  is  a  simple X program that causes all or part of your screen to be repainted.  This is useful
       when system messages have messed up your screen.  Xrefresh maps a window on top of the  desired  area  of
       the  screen  and  then  immediately unmaps it, causing refresh events to be sent to all applications.  By
       default, a window with no background is used, causing all applications to repaint ``smoothly.''  However,
       the various options can be used to indicate that a solid background (of any color)  or  the  root  window
       background should be used instead.

       DISPLAY - To get default host and display number.

       xrefresh - refresh all or part of an X screen

X(7)

xrefresh [-option ...]

       The xrefresh program uses the routine XGetDefault(3) to read defaults, so  its  resource  names  are  all
       capitalized.

       Black, White, Solid, None, Root
               Determines what sort of window background to use.

       Geometry
               Determines the area to refresh.  Not very useful.