LEN (GLENGTH1)

      Length of following data.

    FLAGS (GBIT16)

      Reserved.

      0x0000

        Only valid value.

      MIX (GBIT16)

        Mix mode.

        Values are:

        0x00CC

          Source.
        0x00C0
          Source and pattern.
        0x00CA
          Source where pattern1
        0x000C
          Source where pattern0
        0x00E2
          Pattern where source1
        0x00B8
          Pattern where source0
        Other
          Reserved values.

        BMID (GHBITMAP)

          Bit-map identifier.

        TRANS (GBIT32)

          Transfer mode.

          Values are:

          0x00000000

            OR
          0x01000000
            AND
          0x02000000
            Ignore
          Other
            Reserved values.

          P1 (GPOINT)

            Target rectangle bottom-left corner.

          P2 (GPOINT)

            Target rectangle top-right corner.

          SOURCE1X (GLONG)

            Source rectangle bottom-left corner, x-coordinate.

          SOURCE1Y (GLONG)

            Source rectangle bottom-left corner, y-coordinate.

          SOURCE2X (GLONG)

            Source rectangle top-right corner, x-coordinate.

          SOURCE2Y (GLONG)

            Source rectangle top-right corner, y-coordinate.


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