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Pagina principale>Developer Solutions>Interfaces>IUDC>IUDCPrinter>IProfile>IFileFormats>ITIFF

ITIFF


The ITIFF interface is designed to configure output files to be saved in TIFF format.

Properties

Enum ColorSpace

Defines the bit depth of the resulting image measured as the number of bits representing each pixel. It is both readable and writable.
ConstantValueDescription
CS_BLACKWHITE1Black and white image (1 bit per pixel)
CS_16COLORS4Color image, 16 colors (4 bits per pixel)
CS_16GRAYSCALE132Grayscale image (16 hues, 4 bits per pixel)
CS_256COLORS8Color image, 256 colors (8 bits per pixel)
CS_256GRAYSCALE136Grayscale image (256 hues, 8 bits per pixel)
CS_TRUECOLOR24True color image (24 bits per pixel)

Enum Compression
Defines the image compression algorithm to be applied when creating TIFF files. Please note that certain compression algorithms are only applicable to files with a certain bit depth. An exception will be generated if an attempt is made to set compression that is incompatible with current bit depth. It is both readable and writable.
ConstantValueDescription
CMP_DEFAULT0xFFFFFFFFSoftware automatically selects the best compression mode: CCITT Group4, if the ColorSpace property is set to CS_BLACKWHITE, and LZW otherwise
CMP_NONE0No compression
CMP_CCITTGR31CCITT Group 3 compression (a lossless Huffman algorithm using a fixed table). Valid only if the ColorSpace property is set to CS_BLACKWHITE
CMP_CCITTGR42CCITT Group 4 compression (a more advanced version of CCITT Group 3). Valid only if the ColorSpace property is set to CS_BLACKWHITE
CMP_LZW3LZW compression (lossless)
CMP_FLATE4Flate compression (lossless compression using an algorithm similar to ZIP)

Enum FillOrder
Defines bit ordering in bytes. Used for output file compatibility with various facsimile equipment. The property is not available unless the ColorSpace property is set to CS_BLACKWHITE and Compression is set to CMP_CCITTGR3 or CMP_CCITTGR4. It is both readable and writable.
ConstantValueDescription
FO_DEFAULT0xFFFFFFFFSoftware selects the best bit ordering by setting FO_MSB2LSB
FO_MSB2LSB0Bits are ordered in ascending order
FO_LSB2MSB1Bits are ordered in descending order

Enum Multipage
Helps manage the process of creating multi-page output files. It is both readable and writable.
ConstantValueDescription
MM_SINGLE0Each page of the source document and every one-page document are saved as separate files
MM_MULTI2Each multi-page source document is saved as a single multi-page file
MM_APPEND3The content of all documents processed is saved in a single multi-page file

Enum Segmentation
Defines the internal structure of TIFF files, i. e. the method of partitioning files into stripes. It is both readable and writable.
ConstantValueDescription
SEG_DEFAULT0xFFFFFFFFSoftware automatically selects the best partitioning option: SEG_SINGLE_STRIPPED
SEG_STRIPPED0File is segmented into stripes no more than 4 KB each
SEG_SINGLE_STRIPPED1File is saved as a single stripe
SEG _TILED2File is partitioned into arbitrary rectangles (extended TIFF standard)

Enum Smoothing
Defines the dithering mode applied to half-tone transitions and used to reduce stepwise rendering when representing downsampled images. Dithering is applied only if the ColorSpace property has one of the following values: CS_BLACKWHITE, CS_16COLORS, CS_16GRAYSCALE, CS_256COLORS. It is both readable and writable.
ConstantValueDescription
SM_HQ1High-quality dithering is enabled to optimize for output image quality
SM_FAST0Fast dithering is used to optimize for conversion speed

Examples

Visual Basic 6

Dim objUDC As IUDC Dim itfPrinter As IUDCPrinter Dim itfProfile As IProfile Set objUDC = New UDC.APIWrapper Set itfPrinter = objUDC.Printers("Universal Document Converter") Set itfProfile = itfPrinter.Profile ' Set TIFF as current output file format itfProfile.FileFormat.ActualFormat = FMT_TIFF itfProfile.FileFormat.TIFF.ColorSpace = CS_BLACKWHITE itfProfile.FileFormat.TIFF.Smoothing = SM_HQ itfProfile.FileFormat.TIFF.Compression = CMP_CCITTGR4 itfProfile.FileFormat.TIFF.FillOrder = FO_MSB2LSB itfProfile.FileFormat.TIFF.Multipage = MM_SINGLE itfProfile.FileFormat.TIFF.Segmentation = SEG_STRIPPED


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