ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Functions Reference / Multimedia Functions / IG_mult_open_file
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    IG_mult_open_file
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    This function creates a multimedia instance from a filename.

    Declaration:

     
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    AT_ERRCOUNT ACCUAPI IG_mult_open_file(
            LPSTR szFilename, 
            LPHIGMULT lphMult
    );
    

    Arguments:

    Name Type Description
    szFilename LPSTR Filename of multimedia to open.
    lphMult LPHIGMULT Handle to multimedia instance.

    Return Value:

    Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

    Supported Raster Image Formats:

    This function does not process image pixels.

    Sample:

    Media Player

    Example:

     
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    /* Get a multimedia file's duration using a filename */
    AT_ERRCOUNT nErrcount;  /* Number of errors on stack */
    HIGMULT hMult;          /* Multimedia instance handle */
    LPCSTR szFile;          /* Name of file to open */
    AT_UINT numFrames;      /* Total number of frames in file */
    AT_UINT duration;       /* Duration of file in milliseconds */
    nErrcount = IG_mult_open_file(szFile, &hMult);
    nErrcount = IG_mult_duration_get(hMult, &numFrames, &duration);
    nErrcount = IG_mult_close(hMult);
    

    Remarks:

    The file must remain accessible until the multimedia instance is closed.