MATLAB: How to use a protofile with ‘loadlibrary’

calllibData Acquisition Toolboxlibraryloadlibraryprotofileprototype

How do I use a protofile with 'loadlibrary'?

Best Answer

Protofiles provide two benefits when using 'loadlibrary':
  • Protofiles allow you to provide prototypes for a library for which you do not have a header file
  • Providing a protofile to 'loadlibrary' instead of a header file can dramatically speed up execution.
The following code gives an example of how to use a protofile:
if ~libisloaded(libname)
    % If the protofile already exists
    if exist('myProtofile', 'file') == 2
        % Load the library using the protofile, this is much faster
        loadlibrary(libname, @myProtofile);
    else
        % Load the library using the header file, generating the protofile
        % Will create a file name 'myProtofile.m' in the current
        % directory.
        loadlibrary(libname, headerFile, 'mfilename', 'myProtofile.m');
    end
end
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