Read data array in Matlab with stream function

In the example code u6_simplestream.m, the data is stored in a special format:

        % Init array to store data.
        adblData = NET.createArray('System.Double', 2*numScans);  %Max buffer size (#channels*numScansRequested)

        % Read the data. The array we pass must be sized to hold enough SAMPLES,
        % and the Value we pass specifies the number of SCANS to read.
        numScansRequested = numScans;
        % Use eGetPtr when reading arrays in 64-bit MATLAB. Also compatible with
        % 32-bits.
        [ljerror, numScansRequested] = ljudObj.eGetPtr(ljhandle, LJ_ioGET_STREAM_DATA, LJ_chALL_CHANNELS, numScansRequested, adblData);
 

The example code also shows that I can retrieve the data value by calling adblData(index) where index is a positive integer. My question is if I want to read all the data values from adblData, is there any method besides having a loop to get the value one by one? My application is time-critical so I don't want to use loop function.

Thanks for any help.