Sets the minimal width of the spaces between the bars, cannot be less than 1. Specified in pixels.
Set1DMinimalSpaceWidth (pDevMode As Long, dwWidth As Long) As Boolean
Input value - pDevMode: handle to the BlackIceDEVMODE structure
Input value - dwWidth: the minimal width of the spaces in pixels
Return value - TRUE on success, FALSE otherwise.
NOTE: For 32-bit applications, use pDevMode as Integer, instead of Long.