>How do I call these two API functions GetDialogBaseUnits and MapDialogRect in VFP. I'm trying to get the convert dialog units into pixels using the following formula:
>
>pixelx = (dialogunitX * baseuntX) /4
>pixely = (dialogunitY * baseuntY) /8
>
>I need to calculate the baseunitX and baseunitY. I have readup and found that these two functions should give me the values to the two variables. Or is there another way to get these values from within VFP
>
>Thanks in advance.

Hi Stuart,

I'm not quite sure with your question. GetDialogBaseUnits already gives you the X and Y of the BaseUnit.
Anyway, Here is the sample call

** Using GetDialogBaseUnits
nBaseUnits = GetDialogBaseUnits()
nBaseUnitX = BitAnd( nBaseUnits, 0xFFFF )
nBaseUnitY = BitRShift( BitAnd( nBaseUnits, 0xFFFF0000 ), 16 )

** Using MapDialogRect
sRect = space( 16 )
SetRect( @sRect, nLeft, nTop, nRight, nBottom )

** hDialog is Handle to a Dialog Window. Or else it fails or worst...CRASHED!
MapDialogRect( hDialog, @sRect )
** Convert back sRect structure to nLeft, nTop, nRight, nBottom

Sorry if I'm wrong. But, perhaps, you are looking for the wrong solution there. Because it only works for "Dialog Window". AFAIK, all VFP form is NOT Dialog Window.

Regards