Günther, the pen-calculation-factor ( GdiPlus ) //New( nTrans, nRed, nGreen, nBlue, nSize, lRound, lAlign ) //nRed := nRGBRed( nColor ) //nGreen := nRGBGreen( nColor ) //nBlue := nRGBBlue( nColor ) oPen := Pen():New( 255, 0, 0, 255 , 8 , .T.) will show a 3 mm pen 1 mm = 2.834645669 ...