Mouse in BASIC

Hi!
Experimenting with AnyMode, I pressed F12 and then selected the resolution:

• WimpMode X512 Y256 C16m
  The video mode has changed, but a huge mouse pointer remains on the screen. I launched BASIC. The mouse pointer still remains on the screen.
  Does this mean that I am still multitasking?
  What is the use of a mouse pointer in BASIC?
  Thanks.
  Vladimir

Edit:
RPi B+, RISC OS 5.28

What is the use of a mouse pointer in BASIC?

BASIC can use the mouse in single-tasking mode, including reading the mouse position and button states. See pages 69-71 and 338-339 of the BBC BASIC Reference manual (available for download here).

For example, MOUSE ON turns the mouse pointer on, and MOUSE OFF turns it off again.

Thanks Stuart.
I downloaded new manual. There are many interesting things to read.

The video mode has changed, but a huge mouse pointer remains on the screen

I’m I correct in saying that pointer doesn’t move with the mouse – ie it’s an orphaned pointer?

No, everything is fine with the pointer, it moves with the mouse. It’s just that I haven’t come across this before.