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Initial revision

IMAGE DEFINITIONS ::=

BEGIN

-- operations

initialize OPERATION
	ARGUMENT	Initialize-INV
	RESULT		Initialize-RSP
	ERRORS		{ congested, versionNotSupported }
	::=		1

readImage OPERATION
	ARGUMENT	ReadImage-INV
	RESULT		ReadImage-RSP
	ERRORS		{ congested, noMatches, formatNotSupported }
	::=		2


-- errors

congested ERROR
	::=		1

versionNotSupported ERROR
	PARAMETER	VersionsSupported
	::=		2

noMatches ERROR
	::=		3

formatNotSupported ERROR
	PARAMETER	FormatsSupported
	::=		4


-- types

Initialize-INV ::=
	SEQUENCE {
	    proposed[0]
		IMPLICIT Version
		DEFAULT { version-1 }
	}

Initialize-RSP ::=
	SEQUENCE {
	    negotiated[0]	-- need not be present if only one
				-- version was requested and that was chosen,
				-- otherwise exactly one bit is set
		IMPLICIT Version
		OPTIONAL
	}

VersionsSupported ::=
	SEQUENCE {
	    supported[0]
		IMPLICIT Version
	}

Version ::=
	BITSTRING { version-1(0) }


ReadImage-INV ::=
	SEQUENCE {
				-- in order of preference for searching
	    SEQUENCE OF
		CHOICE {
		    file-name[0]
			IMPLICIT Filename,

		    mail-address[1]
			IMPLICIT Mail-Address
		},

				-- in order of preference for retrieval
	    SEQUENCE OF
		Format
	}

ReadImage-RSP ::=
	SEQUENCE {
	    CHOICE {
		x-windows
		    X-Windows-Bitmap
	    }
	}

FormatsSupported ::=
	SEQUENCE {
	    supported[0]
		IMPLICIT Format
	}

Format ::=
	BITSTRING { x-windows-bitmap(0) }


-- discriminants

Filename ::=
	[APPLICATION 1]
	    IMPLICIT GraphicString

Mail-Address ::=
	[APPLICATION 2]
	    IMPLICIT SEQUENCE {
		local[0]
		    IMPLICIT GraphicString,

		domain[1]
		    IMPLICIT GraphicString,

		options[2]
		    IMPLICIT BITSTRING { default-local(0), default-host(1) }
		    DEFAULT { default-local, default-host }
	    }


-- image formats

X-Windows-Bitmap ::=
	[APPLICATION 100]
	    IMPLICIT SET {
		width[0]
		    IMPLICIT INTEGER,

		height[1]
		    IMPLICIT INTEGER,

		hot-spot-x[2]
		    IMPLICIT INTEGER
		    DEFAULT -1,

		hot-spot-y[3]
		    IMPLICIT INTEGER
		    DEFAULT -1,

		data[4]		-- padded to short boundaries
		    IMPLICIT OCTETSTRING
	}

END

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