External Interfaces/API Calling C and Fortran Programs from MATLAB Introducing MEX-Files Using MEX-Files The Distinction Between mx and mex Prefixes MATLAB Data The MATLAB Array Data Storage Data Types in MATLAB Using Data Types Building MEX-Files Compiler Requirements Testing Your Configuration on UNIX Testing Your Configuration on Windows Specifying an Options File Custom Building MEX-Files Who Should Read This Chapter MEX Script Switches Default Options File on UNIX Default Options File on Windows Custom Building on UNIX Custom Building on Windows Troubleshooting Configuration Issues Understanding MEX-File Problems Compiler and Platform-Specific Issues Memory Management Compatibility Issues Additional Information Files and Directories - UNIX Systems Files and Directories - Windows Systems Examples Technical Support Creating C Language MEX-Files C MEX-Files The Components of a C MEX-File Required Arguments to a MEX-File Examples of C MEX-Files A First Example -- Passing a Scalar Passing Strings Passing Two or More Inputs or Outputs Passing Structures and Cell Arrays Handling Complex Data Handling 8-,16-, and 32-Bit Data Manipulating Multidimensional Numerical Arrays Handling Sparse Arrays Calling Functions from C MEX-Files Advanced Topics Help Files Linking Multiple Files Workspace for MEX-File Functions Memory Management Using LAPACK and BLAS Functions Debugging C Language MEX-Files Debugging on UNIX Debugging on Windows Creating Fortran MEX-Files Fortran MEX-Files The Components of a Fortran MEX-File The %val Construct Examples of Fortran MEX-Files A First Example -- Passing a Scalar Passing Strings Passing Arrays of Strings Passing Matrices Passing Two or More Inputs or Outputs Handling Complex Data Dynamically Allocating Memory Handling Sparse Matrices Calling Functions from Fortran MEX-Files Advanced Topics Help Files Linking Multiple Files Workspace for MEX-File Functions Memory Management Debugging Fortran Language MEX-Files Debugging on UNIX Debugging on Windows Calling MATLAB from C and Fortran Programs Using the MATLAB Engine The Engine Library GUI-Intensive Applications Examples of Calling Engine Functions Calling MATLAB From a C Application Calling MATLAB From a Fortran Application Using an Open MATLAB Compiling and Linking Engine Programs Masking Floating-Point Exceptions Compiling and Linking on UNIX Compiling and Linking on Windows Calling Java from MATLAB Using Java from MATLAB: An Overview Java Interface Is Integral to MATLAB Benefits of the MATLAB Java Interface Who Should Use the MATLAB Java Interface To Learn More About Java Programming Platform Support for the Java Virtual Machine Bringing Java Classes into MATLAB Sources of Java Classes Defining New Java Classes Making Java Classes Available to MATLAB Loading Java Class Definitions Simplifying Java Class Names Creating and Using Java Objects Constructing Java Objects Concatenating Java Objects Saving and Loading Java Objects to MAT-Files Finding the Public Data Fields of an Object Accessing Private and Public Data Determining the Class of an Object Invoking Methods on Java Objects Using Java and MATLAB Calling Syntax Invoking Static Methods on Java Classes Obtaining Information About Methods Java Methods that Affect MATLAB Commands How MATLAB Handles Undefined Methods How MATLAB Handles Java Exceptions Working with Java Arrays How MATLAB Represents the Java Array Creating an Array of Objects within MATLAB Accessing Elements of a Java Array Assigning to a Java Array Concatenating Java Arrays Creating a New Array Reference Creating a Copy of a Java Array Passing Data to a Java Method Conversion of MATLAB Argument Data Passing Built-In Data Types Passing String Arguments Passing Java Objects Other Data Conversion Topics Passing Data to Overloaded Methods Handling Data Returned from a Java Method Conversion of Java Return Data Built-In Data Types Java Objects Converting Objects to MATLAB Data Types Introduction to Programming Examples Example - Reading a URL Description of URLdemo Running the Example Example - Finding an Internet Protocol Address Description of resolveip Running the Example Example - Communicating Through a Serial Port Description of Serial Example Running the serialexample Program Example - Creating and Using a Phone Book Description of Function phonebook Description of Function pb_lookup Description of Function pb_add Description of Function pb_remove Description of Function pb_change Description of Function pb_listall Description of Function pb_display Description of Function pb_keyfilter Running the phonebook Program Importing and Exporting Data Using MAT-Files Importing Data to MATLAB Exporting Data from MATLAB Exchanging Data Files Between Platforms Reading and Writing MAT-Files Finding Associated Files Examples of MAT-Files Creating a MAT-File in C Reading a MAT-File in C Creating a MAT-File in Fortran Reading a MAT-File in Fortran Compiling and Linking MAT-File Programs Masking Floating Point Exceptions Compiling and Linking on UNIX Compiling and Linking on Windows ActiveX and DDE Support Introducing MATLAB ActiveX Integration ActiveX Concepts and Terminology MATLAB ActiveX Support Overview MATLAB ActiveX Client Support Using ActiveX Objects ActiveX Client Reference actxcontrol actxserver delete get invoke load move propedit release save send set Writing Event Handlers Additional ActiveX Client Information Releasing Interfaces Using ActiveX Collections Converting Data Using MATLAB As a DCOM Server Client MATLAB ActiveX Support Limitations MATLAB Sample Control Using MATLAB As an Automation Client MATLAB ActiveX Automation Server Support MATLAB ActiveX Automation Methods Additional ActiveX Server Information Launching the MATLAB ActiveX Server Specifying a Shared or Dedicated Server Using MATLAB As a DCOM Server Dynamic Data Exchange (DDE) DDE Concepts and Terminology Accessing MATLAB As a Server The DDE Name Hierarchy Example: Using Visual Basic and the MATLAB DDE Server Using MATLAB As a Client DDE Advisory Links Serial Port I/O Introduction What Is MATLAB's Serial Port Interface? Supported Serial Port Interface Standards Supported Platforms Using the Examples with Your Device Overview of the Serial Port What Is Serial Communication? The Serial Port Interface Standard Connecting Two Devices with a Serial Cable Serial Port Signals and Pin Assignments Serial Data Format Finding Serial Port Information for Your Platform Selected Bibliography Getting Started with Serial I/O Example: Getting Started The Serial Port Session Configuring and Returning Properties Creating a Serial Port Object Configuring Properties During Object Creation The Serial Port Object Display Creating an Array of Serial Port Objects Connecting to the Device Configuring Communication Settings Writing and Reading Data Example: Introduction to Writing and Reading Data Controlling Access to the MATLAB Command Line Writing Data Reading Data Example: Writing and Reading Text Data Example: Parsing Input Data Using strread Example: Reading Binary Data Using Events and Actions Example: Introduction to Events and Actions Event Types and Action Properties Storing Event Information Creating and Executing Action Functions Enabling Action Functions After They Error Example: Using Events and Actions Using Control Pins Signaling the Presence of Connected Devices Controlling the Flow of Data: Handshaking Debugging: Recording Information to Disk Example: Introduction to Recording Information Creating Multiple Record Files Specifying a Filename The Record File Format Example: Recording Information to Disk Saving and Loading Using Serial Port Objects on Different Platforms Disconnecting and Cleaning Up Disconnecting a Serial Port Object Cleaning Up the MATLAB Environment Property Reference The Property Reference Page Format Serial Port Object Properties BaudRate BreakInterruptAction ByteOrder BytesAvailable BytesAvailableAction BytesAvailableActionCount BytesAvailableActionMode BytesToOutput DataBits DataTerminalReady ErrorAction FlowControl InputBufferSize Name OutputBufferSize OutputEmptyAction Parity PinStatus PinStatusAction Port ReadAsyncMode RecordDetail RecordMode RecordName RecordStatus RequestToSend Status StopBits Tag Terminator Timeout TimerAction TimerPeriod TransferStatus Type UserData ValuesReceived ValuesSent