string length in pixels when drawing??

i want to be able to know how many pixels are within a specific font and size, im printing. my printing page will be separated into columns and i want to know when a specific string length has meet the pixel size length for the column(i have called this variable xincrease. does any one know how to work this out?



        Dim pageboundleft As Integer
        Dim pageboundright As Integer
        Dim pageboundtop As Integer
        Dim pageboundbottom As Integer

        pageboundleft = e.MarginBounds.Left
        pageboundright = e.MarginBounds.Right
        pageboundtop = e.MarginBounds.Top
        pageboundbottom = e.MarginBounds.Bottom

'gets column width in pixels?
        Dim xincrease As Integer = (pageboundright - pageboundleft) / (gridcolmax + 1)