2.2.2.21 Scan Object
The Scan Object specifies a collection of scanlines.
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ScanLines (variable) |
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Count2 |
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Count (2 bytes): A 16-bit unsigned integer that specifies the number of horizontal (x-axis) coordinates in the ScanLines array. This value MUST be a multiple of 2, since left and right endpoints are required to specify each scanline.
Top (2 bytes): A 16-bit unsigned integer that defines the vertical (y-axis) coordinate, in logical units, of the top scanline.
Bottom (2 bytes): A 16-bit unsigned integer that defines the vertical (y-axis) coordinate, in logical units, of the bottom scanline.
ScanLines (variable): An array of scanlines, each specified by left and right horizontal (x-axis) coordinates of its endpoints.
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1Left
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Left (2 bytes): A 16-bit unsigned integer that defines the horizontal (x-axis) coordinate, in logical units, of the left endpoint of the scanline.
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Right (2 bytes): A 16-bit unsigned integer that defines the horizontal (x-axis) coordinate, in logical units, of the right endpoint of the scanline.
Count2 (2 bytes): A 16-bit unsigned integer that MUST be the same as the value of the Count field; it is present to allow upward travel in the structure.