Converting StdPicture.Width to pixels?

Hello,

How can I convert StdPicture.Width to pixels?  For example:

  Private Sub Form_Click()
     Dim pic As StdPicture
     Set pic = LoadPicture("test.jpg")
     MsgBox CStr(Screen.TwipsPerPixelX) + " x " + CStr(Screen.TwipsPerPixelX)    '15 x 15
     MsgBox CStr(pic.Width) + " x " + CStr(pic.Height)     '1323 x 1323
  End Sub

This code reports that TwipsPerPixelX is 15 and pic.Width is 1323.   The image is actually 50 pixels width.  Therefore in this case I can divide 1323 by 26.46 to establish pixels?

Will this formula work on ANY platform, or is there a better formula to convert StdPicture.Width to pixels?
Or is there a better way in VB to establish an image width in pixels?

Thanks,
James