Sets the grid orientation to horizontal.
GRIDH(win1, win2, ..., winN)
Optional. Zero or more windows. Defaults to the current window.
displays horizontal, solid grids when a series is displayed.
gridsol(w1, w3, w4);gridh(w1, w3, w4)
displays horizontal, solid grids in W1, W3 and W4 when a series is displayed.
GRIDH does not automatically set the grids to be visible. GRIDH must be used in conjunction with GRIDSOL, GRIDDASH, GRIDDOT, the menus, or the [F6] toggle key.
See SETGRIDSTYLE to set the style of a specified grid.