Dialogic 6.2 manual Sending a TIFF-F Fax File Within an Infopkt Stream

Developing a Fax Application

Processing, Bfv API Reference Manual for detailed information on how to access user-defined infopkts when using the INDIR_MODE_FOLLOW_NOUSER flag.

Sending a TIFF-F Fax File Within an Infopkt Stream

Transmitting a fax stored as a TIFF-F file is accomplished using the TIFF-F fax routines, as described earlier in this chapter, or using an infopkt of type INFOPKT_INDIR_TIFF within an infopkt stream.

TIFF files contain resolution and width parameters for each page. However, the same rules that apply to ordinary fax data streams also apply to fax data streams that contain INDIR_TIFF infopkts:

„A DOCUMENT_PARAMETERS infopkt must be the first infopkt in the stream, but the resolution specified by (the first page) of the TIFF file takes precedence over the resolution specified by the DOCUMENT_PARAMETERS infopkt. This rule is in effect only if

INDIR_TIFF occurs right after the DOCUMENT_PARAMETERS or other infopkt types indicating beginning-of-page.

„To insert a page break between the last page of the first file and the first page of the second file, one of the infopkt types that indicate a beginning-of-page (see Accessing an Infopkt Stream from an Application on page 83) must be present between

INDIR_TIFF infopkts.

„ASCII or G3 data are combined on a single page with the first or last page of a TIFF file by constructing the stream with no new-page type infopkt between the ASCII or G3 data and the INDIR_TIFF infopkt. G3 strip parameter packets might be required (see Infopkts on page 42); the resolution and width of the G3 data in a TIFF file is always specified in the TIFF file, not in the G3 strip parameter packet.

Combining Data on a Single Page Using TIFF-F

Fax Files

Two methods exist for combining data on a single page using TIFF-F files.

The first method uses an infopkt of type INFOPKT_INDIR_TIFF to embed a TIFF-F file in an infopkt stream, as described in Sending a TIFF-F Fax File Within an Infopkt Stream on page 84.

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