fbclear — clear a frame buffer image
is used to erase a frame buffer using whatever method is efficient for the
device being accessed.
By default, the selected color will be flooded into the color planes.
option is used,
a standard linear colormap will be loaded and the pan and zoom values
will be reset.
If the optional color values are given, fbclear writes the specified color over the entire image. The color values must be in the range 0 to 255. In the second form shown above, the single gray_value is written into all three color channels.
The frame buffer to be cleared is determined from the
option if given.
Otherwise the environment variable
is used to select the display device (see
If this variable is not set, the default device for your system will
In addition to those flags shown above, the
options can be used to set the size of the output frame buffer.
This software is Copyright (c) 1986-2016 by the United States Government as represented by U.S. Army Research Laboratory.