Function dpiDeqOptions_getCorrelation 

pub unsafe extern "C" fn dpiDeqOptions_getCorrelation(
    options: *mut dpiDeqOptions,
    value: *mut *const c_char,
    valueLength: *mut u32,
) -> c_int

Returns the correlation of the message to be dequeued. See function dpiDeqOptions_setCorrelation() for more information.

The function returns DPI_SUCCESS for success and DPI_FAILURE for failure.