• Arguments of LibraryFunctionLoad are:
• lib library to be loaded
  fun function name as specified in the library file
  argtypes list of argument types
  rettype return type
• Possible argument and return types, and their corresponding C type, include:
• True |False mbool Boolean
  _Integer mint machine integer
  _Real double machine double
  _Complex mcomplex machine complex double
  {dt,r} MTensor tensor with element data type dt and rank r
  LibraryDataType [SparseArray ,dt,r] MSparseArray sparse array with element data type dt and rank r
  LibraryDataType [Image ,it] MImage image with ImageType it
  LibraryDataType [Image3D ,it] MImage 3D image with ImageType it
  "UTF8String" char* string in UTF-8 encoding
  LinkObject WSLINK arguments and result passed over WSTP
  "Void" void no result (return only)
• LibraryFunctionLoad returns the LibraryFunction object.
• LibraryFunctionLoad can be called more than once with the same arguments returning the same LibraryFunction object.
• LibraryFunctionLoad uses FindLibrary to locate libraries found on $LibraryPath .
• When a Wolfram Library is loaded, an initialization function in the library is called.
• When a Wolfram Library is unloaded, an uninitialization function in the library is called.
• Libraries loaded by LibraryFunctionLoad run in the same process as the Wolfram Language kernel.
• Functions in libraries loaded by LibraryFunctionLoad can make callbacks to the Wolfram Language.
• Libraries loaded by LibraryFunctionLoad can share data with the Wolfram Language kernel.
• LibraryFunctionUnload unloads a LibraryFunction so that it can no longer be used.
• Libraries loaded by LibraryFunctionLoad are unloaded when the Wolfram Language kernel exits.
• Libraries loaded by LibraryFunctionLoad must be written as a dynamic library for the platform on which they run.

Basic Examples  (3)

Possible Issues  (1)