2.2.5.2.1 Packed Metafile Payload (CLIPRDR_MFPICT)
The CLIPRDR_MFPICT structure is used to transfer a Windows metafile. The Windows metafile format is specified in [MS-WMF] section 2.
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2 |
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mappingMode |
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xExt |
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yExt |
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metaFileData (variable) |
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mappingMode (4 bytes): An unsigned, 32-bit integer specifying the mapping mode in which the picture is drawn.
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Value
Meaning
MM_TEXT
0x00000001
Each logical unit is mapped to one device pixel. Positive x is to the right; positive y is down.
MM_LOMETRIC
0x00000002
Each logical unit is mapped to 0.1 millimeter. Positive x is to the right; positive y is up.
MM_HIMETRIC
0x00000003
Each logical unit is mapped to 0.01 millimeter. Positive x is to the right; positive y is up.
MM_LOENGLISH
0x00000004
Each logical unit is mapped to 0.01 inch. Positive x is to the right; positive y is up.
MM_HIENGLISH
0x00000005
Each logical unit is mapped to 0.001 inch. Positive x is to the right; positive y is up.
MM_TWIPS
0x00000006
Each logical unit is mapped to 1/20 of a printer's point (1/1440 of an inch), also called a twip. Positive x is to the right; positive y is up.
MM_ISOTROPIC
0x00000007
Logical units are mapped to arbitrary units with equally scaled axes; one unit along the x-axis is equal to one unit along the y-axis.
MM_ANISOTROPIC
0x00000008
Logical units are mapped to arbitrary units with arbitrarily scaled axes.
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For MM_ISOTROPIC and MM_ANISOTROPIC modes, which can be scaled, the xExt and yExt fields contain an optional suggested size in MM_HIMETRIC units. For MM_ANISOTROPIC pictures, xExt and yExt SHOULD be zero when no suggested size is given. For MM_ISOTROPIC pictures, an aspect ratio MUST be supplied even when no suggested size is given. If a suggested size is given, the aspect ratio is implied by the size. To give an aspect ratio without implying a suggested size, the xExt and yExt fields are set to negative values whose ratio is the appropriate aspect ratio. The magnitude of the negative xExt and yExt values is ignored; only the ratio is used.
xExt (4 bytes): An unsigned, 32-bit integer that specifies the width of the rectangle within which the picture is drawn, except in the MM_ISOTROPIC and MM_ANISOTROPIC modes. The coordinates are in units that correspond to the mapping mode.
yExt (4 bytes): An unsigned, 32-bit integer that specifies the height of the rectangle within which the picture is drawn, except in the MM_ISOTROPIC and MM_ANISOTROPIC modes. The coordinates are in units that correspond to the mapping mode.
metaFileData (variable): The variable sized contents of the metafile as specified in [MS-WMF] section 2.