2.3.4 Control Record Types

The Control record types define the start and end of an EMF metafile and its properties.

The following are EMF control record types.

Name	Section	Description
EMR_EOF	2.3.4.1	Indicates the end of the metafile and specifies a palette.
EMR_HEADER	2.3.4.2	Indicates the start of the metafile and specifies properties of the device on which the metafile was created.

The generic structure of control records is specified as follows.

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
Type
Size
RecordBuffer (variable)
...

Type (4 bytes): An unsigned integer that defines the type of record. The control record types are listed in the following table. See the preceding table for descriptions of these record types.

Name	Value
EMR_HEADER	0x00000001
EMR_EOF	0x0000000E

Size (4 bytes): An unsigned integer that specifies the size in bytes of this record in the metafile. This value MUST be a multiple of 4 bytes.

RecordBuffer (variable): An array of bytes that contains the remainder of the control record.

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
ControlRecordParm (variable)
...
AlignmentPadding (variable, optional)
...

ControlRecordParm (variable): An array of bytes that contains the parameters for the control record.

AlignmentPadding (variable, optional): An array of up to 3 bytes that pads the record so that its total size is a multiple of 4 bytes. This field MUST be ignored.

See section 2.3 for more EMF record types.