ImageGear for C and C++ on Linux v20.0 - Updated
API Reference Guide > PDF Component API Reference > PDF Component Objects Reference > General Objects > HIG_PDF_STREAM > IG_PDF_stream_read_CB_register

Creates a read-only PDF stream from an arbitrary data-producing procedure.


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AT_ERRCOUNT ACCUAPI IG_PDF_stream_read_CB_register(
        LPFNIG_PDF_STREAM_PROC lpfnReadProc,
        LPVOID lpClientData,
        LPHIG_PDF_STREAM lphStream 


Name Type Description
lpfnReadProc LPFNIG_PDF_STREAM_PROC User-supplied callback that supplies the stream's data.
lpClientData LPVOID Pointer to user-supplied data to pass to lpfnReadProc each time it is called.
lphStream LPHIG_PDF_STREAM Handle to the new stream.

Return Value:

Error count.

Supported Raster Image Formats:

This function does not process image pixels.


The stream is not seek-able. lpfnReadProc is called when the client of the stream attempts to read data from it.

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