- •Important Information
- •Warranty
- •Copyright
- •Trademarks
- •Organization of This Manual
- •Conventions Used in This Manual
- •Related Documentation
- •Customer Communication
- •Introduction
- •Classes of External Code
- •Supported Languages
- •Macintosh
- •Microsoft Windows 3.1
- •Microsoft Windows 95 and Windows NT
- •Solaris
- •Steps for Creating a CIN
- •1. Place the CIN on a Block Diagram
- •2. Add Input and Output Terminals to the CIN
- •Input-Output Terminals
- •Output-Only Terminals
- •3. Wire the Inputs and Outputs to the CIN
- •4. Create .c File
- •Special Macintosh Considerations
- •5. Compile the CIN Source Code
- •Macintosh
- •THINK C for 68K (Versions 5-7)
- •Symantec C++ 8.0 for Power Macintosh
- •Metrowerks CodeWarrior for 68K
- •Metrowerks CodeWarrior for Power Macintosh
- •Microsoft Windows 3.x
- •Watcom C Compiler
- •Microsoft Windows 95 and Windows NT
- •Microsoft SDK C/C++ Compiler
- •Visual C++ for Windows 95 or Windows NT
- •Solaris 1.x
- •Solaris 2.x
- •6. Load the CIN Object Code
- •LabVIEW Manager Routines
- •Online Reference
- •Pointers as Parameters
- •Debugging External Code
- •DbgPrintf
- •Debugging CINs Under Windows 95 and Windows NT
- •Debugging CINs Under Sun or Solaris
- •Debugging CINs Under HP-UX
- •Introduction
- •CIN .c File
- •How LabVIEW Passes Fixed Sized Data to CINs
- •Scalar Numerics
- •Scalar Booleans
- •Refnums
- •Clusters of Scalars
- •Return Value for CIN Routines
- •Examples with Scalars
- •1. Place the CIN on the Block Diagram
- •2. Add Two Input and Output Terminals to the CIN
- •3. Wire the Inputs and Outputs to the CIN
- •4. Create the CIN Source Code
- •5. Compile the CIN Source Code
- •Macintosh
- •THINK C for 68K and Symantec C++
- •Microsoft Windows 3.x
- •Watcom C Compiler
- •Microsoft Windows 95 and Windows NT
- •Microsoft SDK Compiler
- •Microsoft Visual C++ Compiler
- •Solaris 1.x, Solaris 2.x, and HP-UX
- •6. Load the CIN Object Code
- •Comparing Two Numbers, Producing a Boolean Scalar
- •How LabVIEW Passes Variably Sized Data to CINs
- •Alignment Considerations
- •Arrays and Strings
- •Paths (Path)
- •Clusters Containing Variably Sized Data
- •Resizing Arrays and Strings
- •SetCINArraySize
- •NumericArrayResize
- •Examples with Variably Sized Data
- •Concatenating Two Strings
- •Working with Clusters
- •CIN Routines
- •Data Spaces and Code Resources
- •CIN Routines: The Basic Case
- •Loading a VI
- •Unloading a VI
- •Loading a New Resource into the CIN
- •Compiling a VI
- •Running a VI
- •Saving a VI
- •Aborting a VI
- •Multiple References to the Same CIN
- •Reentrancy
- •Code Globals and CIN Data Space Globals
- •Examples
- •Using Code Globals
- •Using CIN Data Space Globals
- •Calling a Windows 3.1 Dynamic Link Library
- •Calling a 16-Bit DLL
- •1. Load the DLL
- •2. Get the address of the desired function
- •3. Describe the function
- •4. Call the function
- •Example: A CIN that Displays a Dialog Box
- •The Block Diagram
- •The CIN Code
- •Compiling the CIN
- •Optimization
- •Introduction
- •Creating Shared External Subroutines
- •External Subroutine
- •Macintosh
- •THINK C Compiler and CodeWarrior 68K Compiler
- •MPW Compiler
- •Solaris 1.x, Solaris 2.x, and HP-UX
- •Calling Code
- •Macintosh
- •THINK C Compiler
- •CodeWarrior 68K Compiler
- •MPW Compiler
- •Solaris 1.x, Solaris 2.x, and HP-UX
- •Simple Example
- •External Subroutine Example
- •Compiling the External Subroutine
- •Macintosh
- •THINK C Compiler and CodeWarrior 68K Compiler
- •MPW Compiler
- •Microsoft Windows 3.1
- •Watcom C Compiler
- •Microsoft Windows 95 and Windows NT
- •Solaris 1.x, Solaris 2.x, and HP-UX
- •Calling Code
- •Compiling the Calling Code
- •Macintosh
- •THINK C Compiler
- •CodeWarrior 68K Compiler
- •MPW Compiler
- •Microsoft Windows 3.1
- •Watcom C Compiler
- •Microsoft Windows 95 and Windows NT
- •Solaris 1.x, Solaris 2.x, and HP-UX
- •Introduction
- •Basic Data Types
- •Scalar Data Types
- •Booleans
- •Numerics
- •Complex Numbers
- •char Data Type
- •Dynamic Data Types
- •Arrays
- •Strings
- •C-Style Strings (CStr)
- •Pascal-Style Strings (PStr)
- •LabVIEW Strings (LStr)
- •Concatenated Pascal String (CPStr)
- •Paths (Path)
- •Memory-Related Types
- •Constants
- •Memory Manager
- •Memory Allocation
- •Static Memory Allocation
- •Dynamic Memory Allocation: Pointers and Handles
- •Memory Zones
- •Using Pointers and Handles
- •Simple Example
- •Reference to the Memory Manager
- •Memory Manager Data Structures
- •File Manager
- •Introduction
- •Identifying Files and Directories
- •Path Specifications
- •Conventional Path Specifications
- •Empty Path Specifications
- •LabVIEW Path Specification
- •File Descriptors
- •File Refnums
- •Support Manager
- •Allocating and Releasing Handles
- •Allocating and Releasing Pointers
- •Manipulating Properties of Handles
- •AZHLock
- •AZHPurge
- •AZHNoPurge
- •AZHUnlock
- •Memory Utilities
- •ClearMem
- •MoveBlock
- •SwapBlock
- •Handle and Pointer Verification
- •Memory Zone Utilities
- •File Manager Data Structures
- •File/Directory Information Record
- •File Type Record
- •Path Data Type
- •Permissions
- •Volume Information Record
- •File Manager Functions
- •Performing Basic File Operations
- •FCreate
- •FCreateAlways
- •FMClose
- •FMOpen
- •FMRead
- •FMWrite
- •Positioning the Current Position Mark
- •FMSeek
- •FMTell
- •Positioning the End-Of-File Mark
- •FGetEOF
- •FSetEOF
- •Flushing File Data to Disk
- •FFlush
- •FExists
- •FGetAccessRights
- •FGetInfo
- •FGetVolInfo
- •FSetAccessRights
- •FSetInfo
- •Getting Default Access Rights Information
- •FGetDefGroup
- •FListDir
- •FNewDir
- •Copying Files
- •FCopy
- •Moving and Deleting Files and Directories
- •FMove
- •FRemove
- •Locking a File Range
- •FLockOrUnlockRange
- •Matching Filenames with Patterns
- •FStrFitsPat
- •Creating Paths
- •FAddPath
- •FAppendName
- •FAppPath
- •FEmptyPath
- •FMakePath
- •FNotAPath
- •FRelPath
- •Disposing Paths
- •FDisposePath
- •Duplicating Paths
- •FPathCpy
- •FPathToPath
- •Extracting Information from a Path
- •FDepth
- •FDirName
- •FName
- •FNamePtr
- •FVolName
- •FArrToPath
- •FFlattenPath
- •FPathToArr
- •FPathToAZString
- •FPathToDSString
- •FStringToPath
- •FTextToPath
- •FUnFlattenPath
- •Comparing Paths
- •FIsAPath
- •FIsAPathOrNotAPath
- •FIsEmptyPath
- •FPathCmp
- •Determining a Path Type
- •FGetPathType
- •FIsAPathOfType
- •FSetPathType
- •Manipulating File Refnums
- •FDisposeRefNum
- •FIsARefNum
- •FNewRefNum
- •FRefNumToFD
- •FRefNumToPath
- •Byte Manipulation Operations
- •Mathematical Operations
- •For THINK C Users
- •RandomGen
- •String Manipulation
- •BlockCmp
- •CPStrCmp
- •CPStrIndex
- •CPStrInsert
- •CPStrRemove
- •CPStrReplace
- •CPStrSize
- •CToPStr
- •HexChar
- •IsAlpha
- •IsDigit
- •IsLower
- •IsUpper
- •LStrCmp
- •LToPStr
- •PPStrCaseCmp
- •PPStrCmp
- •PStrCaseCmp
- •PStrCat
- •PStrCmp
- •PStrCpy
- •PStrNCpy
- •PToCStr
- •PToLStr
- •StrCat
- •StrCmp
- •StrCpy
- •StrLen
- •StrNCaseCmp
- •StrNCmp
- •StrNCpy
- •ToLower
- •ToUpper
- •Utility Functions
- •BinSearch
- •QSort
- •Time Functions
- •ASCIITime
- •DateCString
- •DateToSecs
- •MilliSecs
- •SecsToDate
- •TimeCString
- •TimeInSecs
- •Microsoft Windows 3.1, Windows 95, and Windows NT
- •Macintosh
- •How do I debug my CIN?
- •Can LabVIEW be used to call a DLL in Windows?
- •Glossary
- •Index
Chapter 2 CIN Parameter Passing
IDE = VC
This line adds special VC++ libraries to the link. All other steps required to compile the CIN source code using the Visual C++ compiler are exactly the same as those for the Microsoft SDK compiler.
Solaris 1.x, Solaris 2.x, and HP-UX
As described in the Steps for Creating a CIN section of Chapter 1, CIN
Overview, you can create a makefile using the shell script lvmkmf.
For this example, you should first enter the following command.
lvmkmf mult
This creates a file called Makefile. After executing lvmkmf, you should enter the standard make command, which uses Makefile to create a file called mult.lsb, which you can load into the CIN in LabVIEW.
6. Load the CIN Object Code
Now you are ready to load the CIN into LabVIEW and run it. Select Load Code Resource from the CIN pop-up menu and select mult.lsb, the object code file that you created.
If you followed the preceding steps correctly, you should be able to run the VI at this point. If you save the VI, the CIN object code is saved along with the VI.
LabVIEW Code Interface Reference Manual |
2-8 |
© National Instruments Corporation |