Pointer object for use with shared library
Type of pointer, specified as a string, of any MATLAB® numeric type, structure defined in the library, or enumeration defined in the library. For a list of valid MATLAB numeric types, refer to these tables in C and MATLAB Equivalent Types.
MATLAB Primitive Types
MATLAB Extended Types
Data Types: char
Value, specified as any valid value for given type.
This is an advanced feature for experienced C programmers. MATLAB automatically converts data passed to and from external library functions to the data type expected by the external function. Use a lib.pointer object instead of automatic conversion in the following situations.
You want to modify the data in the input arguments.
You are passing large amounts of data, and you want to control when MATLAB makes copies of the data.
The library stores and uses the pointer for a period of time so you want the MATLAB function to control the lifetime of the lib.pointer object.