C# Definition:

public enum TernaryRasterOperations : uint
{
    SRCCOPY     = 0x00CC0020, /* dest = source*/
    SRCPAINT    = 0x00EE0086, /* dest = source OR dest*/
    SRCAND      = 0x008800C6, /* dest = source AND dest*/
    SRCINVERT   = 0x00660046, /* dest = source XOR dest*/
    SRCERASE    = 0x00440328, /* dest = source AND (NOT dest )*/
    NOTSRCCOPY  = 0x00330008, /* dest = (NOT source)*/
    NOTSRCERASE = 0x001100A6, /* dest = (NOT src) AND (NOT dest) */
    MERGECOPY   = 0x00C000CA, /* dest = (source AND pattern)*/
    MERGEPAINT  = 0x00BB0226, /* dest = (NOT source) OR dest*/
    PATCOPY     = 0x00F00021, /* dest = pattern*/
    PATPAINT    = 0x00FB0A09, /* dest = DPSnoo*/
    PATINVERT   = 0x005A0049, /* dest = pattern XOR dest*/
    DSTINVERT   = 0x00550009, /* dest = (NOT dest)*/
    BLACKNESS   = 0x00000042, /* dest = BLACK*/
    WHITENESS   = 0x00FF0062, /* dest = WHITE*/
};

VB Definition:

    Enum TernaryRasterOperations As UInteger
    SRCCOPY = 13369376     'dest = source
    SRCPAINT = 15597702    'dest = source OR dest
    SRCAND = 8913094       'dest = source AND dest
    SRCINVERT = 6684742    'dest = source XOR dest
    SRCERASE = 4457256     'dest = source AND (NOT dest )
    NOTSRCCOPY = 3342344   'dest = (NOT source)
    NOTSRCERASE = 1114278  'dest = (NOT src) AND (NOT dest)
    MERGECOPY = 12583114   'dest = (source AND pattern)
    MERGEPAINT = 12255782  'dest = (NOT source) OR dest
    PATCOPY = 15728673     'dest = pattern
    PATPAINT = 16452105    'dest = DPSnoo
    PATINVERT = 5898313    'dest = pattern XOR dest
    DSTINVERT = 5570569    'dest = (NOT dest)
    BLACKNESS = 66     'dest = BLACK
    WHITENESS = 16711778   'dest = WHITE
    End Enum

Notes:

None.