ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Functions Reference / Multi Page Image Functions / IG_mpi_create
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    IG_mpi_create
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    This function allocates and initializes a new multi-page image and returns its handle.

    Declaration:

     
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    AT_ERRCOUNT ACCUAPI IG_mpi_create( 
            LPHMIGEAR lphMIGear, 
            UINT nPages 
    );
    

    Arguments:

    Name Type Description
    lpHMIGear LPHMIGEAR A pointer indicating where to return the handle of the allocated and initialized multi-page image.
    nPage UINT The number of multi-page image pages that should be created.

    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:

    All pixel formats supported by ImageGear for C and C++.

    Sample:

    MFC Multipage

    Example:

     
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    HMIGEAR       hMIGear;     /* handle to multi-page image */
    AT_ERRCOUNT   nErrCount = IGE_SUCCESS; /* will hold returned error count */
    nErrCount = IG_mpi_create( &hMIGear, 0 );
     ...
    /* any operations with hMIGear */
    nErrCount = IG_mpi_delete( hMIGear );
    

    Remarks:

    This new image is set with nPages. Each image is initialized with the default value NULL. If there is a failure, then the returned handle is NULL and an error is set.

    The multi-page image is array of pages where each page is a HIGEAR object. All pages are numbered beginning with a 0 index, so that 0 - is the first page, 1 - is the second page, etc. If the image contains nCount number of pages, then its pages can be accessed through indexes 0 - nCount-1. The value of each page can be either NULL (default value) or value HIGEAR image.