Can I draw outside of a figure/axes?

Is there a way to draw outside of a figure window? For example, I would like to draw a line on my screen without having to open a MATLAB figure window.

[José-Luis]

Why do you want to do that?

[T]

I would like to overlay plots and images on top of other programs outside of MATLAB. For example, if I have a powerpoint open I can draw on top of it from MATLAB.

Answer 1

[Chad Greene]

Have you tried these? They should work on desktop monitors, laptops, or tablets.

[T]

Thanks, that seems to work. But, 'close all' doesn't erase the line...

[Chad Greene]

Dang. Consider submitting a bug report?

[José-Luis]

Cheeky. +1

Answer 2

[José-Luis]

http://www.mathworks.com/help/simulink/ug/control-an-led-display.html#br13l4n-1