    class
    	WEL_ROP2_CONSTANTS

    General
    	cluster: wel
    	description: "Raster operation 2 (R2) constants."

    Ancestors
    	ANY

    Queries
    	R2_black: INTEGER_32
    	R2_copypen: INTEGER_32
    	R2_masknotpen: INTEGER_32
    	R2_maskpen: INTEGER_32
    	R2_maskpennot: INTEGER_32
    	R2_mergenotpen: INTEGER_32
    	R2_mergepen: INTEGER_32
    	R2_mergepennot: INTEGER_32
    	R2_nop: INTEGER_32
    	R2_not: INTEGER_32
    	R2_notcopypen: INTEGER_32
    	R2_notmaskpen: INTEGER_32
    	R2_notmergepen: INTEGER_32
    	R2_notxorpen: INTEGER_32
    	R2_white: INTEGER_32
    	R2_xorpen: INTEGER_32
    	valid_rop2_constant (c: INTEGER_32): BOOLEAN