Function LoadFile4( _
   ByVal FileName As System.String, _
   ByVal ArgString As System.String, _
   ByVal ImportData As System.Object, _
   ByRef Errors As System.Integer _
) As ModelDoc2

Dim instance As ISldWorks
Dim FileName As System.String
Dim ArgString As System.String
Dim ImportData As System.Object
Dim Errors As System.Integer
Dim value As ModelDoc2
 
value = instance.LoadFile4(FileName, ArgString, ImportData, Errors)

ModelDoc2 LoadFile4( 
   System.string FileName,
   System.string ArgString,
   System.object ImportData,
   out System.int Errors
)

ModelDoc2^ LoadFile4( 
&   System.String^ FileName,
&   System.String^ ArgString,
&   System.Object^ ImportData,
&   [Out] System.int Errors
) 

Parameters

FileName

Full path and file name of the third-party native CAD part or assembly document to import (see Remarks)

ArgString

Space-separated string that allows optional arguments to be specified when opening a third-party native CAD file; empty string if 3D Interconnect is enabled (see Remarks)

ImportData

IImportIgesData, IImportDxfDwgData, or IImportStepData object; null or Nothing if 3D Interconnect is not enabled (see Remarks)

Errors

Errors as defined in swFileLoadError_e

Return Value

This method:

• Uses 3D Interconnect to load FileName into a new SOLIDWORKS document. Before calling this method, turn on 3D Interconnect by setting Tools > Options > System Options > Import > Enable 3D Interconnect or calling ISldWorks::SetUserPreferenceToggle(swUserPreferenceToggle_e.swMultiCAD_Enable3DInterconnect, True). With 3D Interconnect enabled, this method supports the following third-party native CAD formats and versions:
  • ACIS: .sat, .sab, .asat, .asab for r1 - 2018 1.0
  • Autodesk® Inventor: .ipt for V6-V2018, .iam for V11 - V2018
  • CATIA® V5: .CATPart, .CATProduct for V5R8 - V5-6R2017
  • IGES: .igs, .iges for up to 5.3
  • JT: .jt for JT 8.x, 9.x, and 10.x
  • PTC®: .prt, .prt.*, .asm.* for Pro/ENGINEER® 16 - Creo 4.0
  • Solid Edge®: .par, .asm, .psm for V18 - ST10
  • STEP: .stp, .step for AP203, AP214, AP24
  • NX™ software: .prt for UG 11 - NX 11
• Imports FileName into the appropriate native SOLIDWORKS part or assembly.
  • For parts, the SOLIDWORKS file created is a copy of the original non-native file. The copy retains an external reference to the original CAD file. If the original third-party native file is modified in its orginal application, the SOLIDWORKS copy can be updated to import those changes. Changes to the SOLIDWORKS copy do not propagate back to the original file.
  • For assemblies, you must save the new SOLIDWORKS assembly in order for SOLIDWORKS to import the third-party native assembly and create the copy. Only after saving the new SOLIDWORKS assembly can you edit the imported top-level assembly or break its reference link. Editing lower-level components of the imported top-level assembly or individually breaking their reference links is not supported.
  • See the IImport3DInterconnectData Remarks for information about editing imported CAD data and breaking reference links to third-party native CAD parts and assemblies.
• Imports the geometry as a featureless solid body. 
• Does not import FileName into any existing SOLIDWORKS file or the active document. To import a third-party native CAD file into an existing SOLIDWORKS:
  • Part, use IPartDoc::InsertImportedFeature.
  • Assembly, use IAssemblyDoc::InsertImportedComponent.
• Imports third-party native CAD files using different behavior if 3D Interconnect is not enabled: