[Gambas-user] How to know permanently the cursor coordinates in a gridview?

[Dominique SIMONART]

Hi,
I've a main Gridview (grdGame) surrounded by 2 other grids, grdHdef on
top and grdVdef on left of grdGame

When the mouse cursor is over the main grid, I want to highlight a
column of the top grid and a row of the left grid facing the cursor
position.
How to know at each instant where the cursor is, that is without action
on any button?
I cannot use Mouse.X/Y because there is no mouse event

Thank for your help,