xrefresh - refresh all or part of an X screen
Use a white background. The screen just appears to flash
quickly, and then repaint.
Use a black background (in effect, turning off all of the
electron guns to the tube). This can be somewhat disorienting as everything
goes black for a moment.
Use a solid background of the specified color. Try green.
Use the root window background.
This is the default. All of the windows simply repaint.
Specifies the portion of the screen to be repainted; see
This argument allows you to specify the server and screen
to refresh; see
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.
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.
program uses the routine
to read defaults, so its resource names are all capitalized.
Determines what sort of window background to use.
Determines the area to refresh. Not very useful.
To get default host and display number.
It should have just one default type for the background.
Jim Gettys, Digital Equipment Corp., MIT Project Athena