Problem with customising Dialog boxes

[Dumbo]

Hi

I have got this piece of code from VB6 and I am trying to convert this into vb.net, but dont know what excatly this code is doing. Can anyone explain to me.

Begin Dialog UserDialog 490,160,"Frequency Rate" ' %GRID:10,6,1,1
Text(10, 44, 140, 16, "FR Period", .lblCurrentPeriod)
DropListBox(175, 16, 300, 120, arrDepartment(), .cboDepartment)
DropListBox(175, 40, 300, 92, arrCurrentPeriod(), .cboCurrentPeriod)
Text(10, 20, 140, 12, "Department", .lblDepartment)
Text(10, 68, 180, 12, "Length of Moving Period", .lblMovingPeriod)
TextBox(175, 65, 50, 20, .lMovingPeriod)
Text(10, 92, 150, 12, "Number of Iterations", .lblIterations)
TextBox(175, 92, 50, 20, .lIterations)
OKButton(155, 130, 90, 22)
CancelButton(275, 130, 90, 22)
End Dialog


Thanks
Cheers.