Pointer object for use with shared library
p = libpointer
p = libpointer(DataType)
p = libpointer(DataType,Value)
DataType— Type of pointercharacter vector
Type of pointer, specified as a character vector, 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
Value— Value for pointer objectany valid value
Value, specified as any valid value for given type.
Use with libraries that are loaded using the
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
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