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HP OpenVMS Systems Documentation
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HP OpenVMS Programming Concepts Manual

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Chapter 21
21 STARLET Structures and Definitions for C Programmers
     21.1     SYS$STARLET_C.TLB Equivalency to STARLETSD.TLB
     21.2     NEW STARLET Definitions for C
Part 5
Part 5 I/O, System, and Programming Routines
Chapter 22
22 Run-Time Library Input/Output Operations
     22.1     Choosing I/O Techniques
     22.2     Using SYS$INPUT and SYS$OUTPUT
         22.2.1         Default Input and Output Devices
         22.2.2         Reading and Writing to Alternate Devices and External Files
     22.3     Working with Simple User I/O
         22.3.1         Default Devices for Simple I/O
         22.3.2         Getting a Line of Input
         22.3.3         Getting Several Lines of Input
         22.3.4         Writing Simple Output
     22.4     Working with Complex User I/O
         22.4.1         HP DECwindows Motif
             22.4.1.1             DECwindows Server Height or Width Exceeding 32767 (VAX Only)
         22.4.2         SMG$ Run-Time Routines
         22.4.3         Pasteboards
             22.4.3.1             Erasing a Pasteboard
             22.4.3.2             Deleting a Pasteboard
             22.4.3.3             Setting Screen Dimensions and Background Color
         22.4.4         Virtual Displays
             22.4.4.1             Creating a Virtual Display
             22.4.4.2             Pasting Virtual Displays
             22.4.4.3             Rearranging Virtual Displays
             22.4.4.4             Removing Virtual Displays
             22.4.4.5             Modifying a Virtual Display
             22.4.4.6             Using Spawned Subprocesses
         22.4.5         Viewports
         22.4.6         Writing Text to Virtual Display
             22.4.6.1             Positioning the Cursor
             22.4.6.2             Writing Data Character by Character
             22.4.6.3             Writing Data Line by Line
             22.4.6.4             Drawing Lines
             22.4.6.5             Deleting Text
         22.4.7         Using Menus
         22.4.8         Reading Data
             22.4.8.1             Reading from a Display
             22.4.8.2             Reading from a Virtual Keyboard
             22.4.8.3             Reading from the Keypad
             22.4.8.4             Reading Composed Input
         22.4.9         Controlling Screen Updates
         22.4.10         Maintaining Modularity
     22.5     Performing Special Input/Output Actions
         22.5.1         Using Ctrl/C and Ctrl/Y Interrupts
         22.5.2         Detecting Unsolicited Input
         22.5.3         Using the Type-Ahead Buffer
         22.5.4         Using Echo
         22.5.5         Using Timeout
         22.5.6         Converting Lowercase to Uppercase
         22.5.7         Performing Line Editing and Control Actions
         22.5.8         Using Broadcasts
             22.5.8.1             Default Handling of Broadcasts
             22.5.8.2             How to Create Alternate Broadcast Handlers
Chapter 23
23 System Service Input/Output Operations
     23.1     Overview of OpenVMS QIO Operations
     23.2     Quotas, Privileges, and Protection
         23.2.1         Buffered I/O Quota
         23.2.2         Buffered I/O Byte Count Quota
         23.2.3         Direct I/O Quota
         23.2.4         AST Quota
         23.2.5         Physical I/O Privilege
         23.2.6         Logical I/O Privilege
         23.2.7         Mount Privilege
         23.2.8         Share Privilege
         23.2.9         Volume Protection
         23.2.10         Device Protection
         23.2.11         System Privilege
         23.2.12         Bypass Privilege
     23.3     Physical, Logical, and Virtual I/O
         23.3.1         Physical I/O Operations
         23.3.2         Logical I/O Operations
         23.3.3         Virtual I/O Operations
     23.4     I/O Function Encoding
         23.4.1         Function Codes
         23.4.2         Function Modifiers
     23.5     Assigning Channels
         23.5.1         Using the Share Privilege with the SYS$ASSIGN and SYS$DASSGN Services
     23.6     Queuing I/O Requests
     23.7     Synchronizing Service Completion
     23.8     Recommended Method for Testing Asynchronous Completion
     23.9     Synchronous and Asynchronous Forms of Input/Output Services
         23.9.1         Reading Operations with SYS$QIOW
         23.9.2         Reading Operations with SYS$QIO
         23.9.3         Write Operations with SYS$QIOW
     23.10     I/O Completion Status
     23.11     Deassigning I/O Channels
     23.12     Using Complete Terminal I/O
     23.13     Canceling I/O Requests
     23.14     Logical Names and Physical Device Names
     23.15     Device Name Defaults
     23.16     Obtaining Information About Physical Devices
         23.16.1         Checking the Terminal Device
         23.16.2         Terminal Characteristics
         23.16.3         Record Terminators
         23.16.4         File Terminators
     23.17     Device Allocation
         23.17.1         Implicit Allocation
         23.17.2         Deallocation
     23.18     Mounting, Dismounting, and Initializing Volumes
         23.18.1         Mounting a Volume
             23.18.1.1             Calling the SYS$MOUNT System Service
             23.18.1.2             Calling the SYS$DISMOU System Service
         23.18.2         Initializing Volumes
             23.18.2.1             Calling the Initialize Volume System Service
             23.18.2.2             Expanding Volumes Dynamically
     23.19     Formatting Output Strings
     23.20     Mailboxes
         23.20.1         Mailbox Name
         23.20.2         System Mailboxes
         23.20.3         Mailboxes for Process Termination Messages
     23.21     Example of Using I/O Services
     23.22     Fast I/O and Fast Path Features (Alpha and I64 Only)
         23.22.1         Fast I/O (Alpha and I64 Only)
             23.22.1.1             Fast I/O Benefits
             23.22.1.2             Buffer Objects
         23.22.2         Fast Path (Alpha and I64 Only)
             23.22.2.1             Fast Path Features and Benefits
             23.22.2.2             Additional Information About Fast Path

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