Application class/Linker.Read Info From File method

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VI Server Method Information
Method ID 89C
Scope Private
Data Name Linker.Read Info From File
Short Name* Linker.Read Info From File
Long Name* Linker:Read Info From File
* Displayed here in English. Short and Long names appear in the language of the LabVIEW IDE.
Owning Class ID 1
Owning Class Name Application Class
Return Data Type Common Cluster Array data type

Common Cluster Array

Invoke Node Linker:Read Info From File

The LabVIEW linker (aka linker) is a core piece of LabVIEW code. It is recommended not to use it by NI technicians. The linker connects VIs to other VIs, classes, dll's. The linker provides this information via a private method called Read Linker Info From File.


Data type Name Required Description
Common Cluster Array Linker:Read Info From File Yes. Return value.
Path Array Paths To Read Yes
Boolean Recursive? Yes
Boolean Exclude Edit Time Dependencies No
Boolean Exclude Typedefs No
Boolean Exclude Poly VIs No
Boolean Exclude Unused Library Items No



Paths To Read

Instructs the linker which files to check.

  • Array of Paths.


Instructs the linker whether only the Paths To Read or the callees as well.

  • Boolean

Links to Include

Instructs the linker which types of links need to be returned.

  • Enum
    • Include all
    • Run time only
    • Run time only (No typedefs & polys)


The linker returns an array with the linker info on the files that needed were checked:
Linker Info BD.png

Linker:Read Info From File

An array of clusters with the linker info.


Path of the file that is described in this array element, can be symbolic path.

  • (Symbolic)Path


Unknown parameter

  • U32


Unknown parameter

  • U16


Unknown parameter

  • U16


Unknown parameter

  • U16


Unknown parameter

  • U32


Unknown parameter

  • U32


Pointers to files used by this file, the number is the index of the file in the owning array.

  • Array of U32


Info on the actual LabVIEW filetype of the file

Enum value Description
Invalid file Default value, not a file
Unknown type Not a valid LabVIEW file
Instrument VI, VI template
Control Control, control template
Polymorphic VI Polymorphic VI
Project LabVIEW project file (lvproj)
Library LabVIEW libary file (lvlib)
LVClass LabVIEW Class file (lvclass)
XControl LabVIEW XControl file (xctl)
XNode LabVIEW External node (xnode), officially not supported by NI
Shared library File called by a CLN (.dll, .so)
.NET assembly .NET class file
ActiveX interface ActiveX interface
CIN CIN file
Run-time menu Run-time menu of a VI or control
Palette menu MNU file
Help file CHM file
LLB LLB container file
XNode Edit Dependency
Class Private Data Control Implicit control, this control is embedded in the containing lvclass


Version Change(s)
LabVIEW 2018 More info to come.

See Also

External Links