FiveTech Software tech support forums

For conversion between Pixels and Units( "INCHES", "CM", "MM" ), we have two methods
Units2Pix( top, left, width, height, Units ( "INCHES","CM","MM" ))
and
Pix2Units( ... )

But for using many methods, we need not do any calculations ourselves.
Just mention the Units as parameter. Printer class will internally does all calculations and print.

Eg:
Line( nTop, nLeft, nBottom, nRight, oPen, cUnits )
METHOD Box( nRow, nCol, nBottom, nRight, anoPen, noBrush, aText, cUnits )
METHOD AngleArc( x, y, r, angle, sweep, uPen, uBrush, cUnits )
METHOD Ellipse( nRow, nCol, nBottom, nRight, oPen, nFillClr, aText, cUnits )

Usage: oPrn:Box( 20, 20, 50, 60, oPen, oBrush, aText, "CM" )

There are only very few methods without this support:
Arc(...), Chord(..), Pie(...)
For such few methods, we can use Units2Pix(..) to convert INCHES/CM/MM to pixels.

For all common usage of printer, the user is not bothered about the conversion calculations