Mixed Language Programming

• Ordering Parameters to Pass to Non-COBOL Programs
  The order in which the parameters are passed, since the calling program might not pass parameters in the order that the called program expects them
• Removing Parameters from the Stack
  Defining whether the called program removes the parameters from the stack before it returns to the calling program, or whether the calling program does it after receiving control back
• Storage Representation of Parameters
  The storage of parameters in mixed language applications, since different systems store data either with the most significant byte first or with it last
• Aligning Parameters on Word and Double Word Boundaries
  Aligning numeric parameters on word and double-word boundaries to match the alignment in the non-COBOL program
• Handling Return Codes in Mixed Language Applications
  COBOL can pass and receive return codes from other programs
• Call Conventions for Interfacing with Mixed Languages
  The conventions for passing parameters, and other details of the interface between the two programs
• Building a Mixed Language Application
  Compiling and linking a mixed language application, and preserving the COBOL run-time system when a calling non-COBOL program
• Interfacing with Assembler Subprograms
  
• Interfacing with Windows API Routines
  
• Interfacing with C Programs
  
• Passing Data between C and COBOL
  Passing data using record layouts.
• Signal Handling
  You can use signal handling in your application, especially if you are mixing COBOL and C in your application.
• Examples of Mixed Language Programming
  

Parent topic: Programming

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