COMPRO COMPRODTV User Manual page 12

is convenient for you to watch multiple programs on full screen mode.
The buttons on the upper-left corner sub window
Up, Channel Down, Mute, Windows Alignment, and Close respectively. Sub
window can be resized by mouse dragging lower-left corner to any ratio.
Running additional windows consumes more CPU usage. If CPU usage
reaches 100%, then video lag will occur. Please reduce the number of
windows.
When main window changes the channel to another frequency, sub window(s)
will move to available programs of another frequency. The sub window will
show black if there is no additional program on this frequency.
Sub window has no full screen mode. Please double-click on sub window to
switch program with main window in order to do so.
It is available to hear audio on multiple programs at the same time. You can
mute or un-mute the sound of sub window(s) at any time. However, main
window audio can't be muted separately from sub window(s).
10
Note
are Channel