Name	Description
Angle	Gets or sets angle of the halftone screen in degrees
Frequency	Gets or sets the halftone screen type frequency in lines per inch
Index	Returns the index of PostScript halftone screen type
Name	Returns the name of the PostScript halftone screen type

Name	Description
NameByIndex	Determines a name of available halftone screen type by index. Returns empty string if not available
Reset	Resets the PostScript halftone screen to its default parameters
Select	Selects a new halftone screen type by index or name
SetProperties	Specifies all the PostScript halftone screen parameters in one call
UserAssign	Shows the PostScript halftone screen options dialog