Interfaces (continued)


  • Exception Management
    • 16 bit interfaces are per process
      • signals (ctrl-break/ctrl-c is per screen group)
      • harderror (popup) suppression for filesys
    • 32 bit interface is like try/catch/throw in C++
      • Each thread is independent
      • XCPT_SIGNAL is sent to thread 1
      • Asynchronous exceptions can be held with DosEnterMustComplete
      • Handlers MUST be registered on the stack



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