Changing Gridline And Heading Options In VBA

I have a workbook with many sheets that at times is handy to have the gridlines and headings on and off at other times.

Is there a way to change in VBA the True/False setting for gridlines and row/column headings displayed on the worksheet, for all visible worksheets without making each sheet active to toggle the settings.

With ActiveWindow
.DisplayGridline=False
.DisplayHeadings=False
End with
Is there another way to do the same thing by looping through the sheets:

For each sheet in this Workbook.Worksheets
????? 'set gridlines to false
????? 'set headings to false

Next sheet