ms.pos.x and ms.pos.y can be used to access the x and y coordinates of the 
mouse.  They are relative to the scrn, not window.  These can be used if you 
don't want to use msg passing.  ms.pos.z is the wheel.

ms.pos_text.x and ms.pos_text.y are the text column and row.  See 
::/Demo/Games/Maze.HC.

See CMsStateGlbls and CMsHardStateGlbls.

The hard designation, as in ms_hard, represents hardware layer items before the 
application of an abstraction layer.

//****
ms_hard.pos.x=ms_hard.prescale.x*ms_hard.scale.x*ms_grid.x_speed;
ms.presnap.x=ToI64(ms.scale.x*ms_hard.pos.x)+ms.offset.x;
if (ms_grid.snap)
  ms.pos.x=Trunc(ms.presnap.x/ms_grid.x)*ms_grid.x+ms_grid.x_offset;
else
  ms.pos.x=ms.presnap.x;
//****