Create loft feature through selected sketches or curves feature using SOLIDWORKS API

This VBA macro demonstrates how to utilize IFeatureManager::InsertProtrusionBlend2 API to create loft feature from the selected sketches or curves features selected in the Feature Manager Tree.

Dim swApp As SldWorks.SldWorks

Sub main()

    Dim swModel As SldWorks.ModelDoc2
    Dim swSelMgr As SldWorks.SelectionMgr
    
    Set swApp = Application.SldWorks
    Set swModel = swApp.ActiveDoc

    Set swSelMgr = swModel.SelectionManager
    
    Dim swFeats() As SldWorks.Feature
    ReDim swFeats(swSelMgr.GetSelectedObjectCount2(-1) - 1)
    
    Dim i As Integer
    
    For i = 1 To swSelMgr.GetSelectedObjectCount2(-1)
        Dim swFeat As SldWorks.Feature
        Set swFeat = swSelMgr.GetSelectedObject6(i, -1)
        Set swFeats(i - 1) = swFeat
    Next
    
    Dim swSelData As SldWorks.SelectData
    Set swSelData = swSelMgr.CreateSelectData
    
    swSelData.Mark = 1
    
    If swModel.Extension.MultiSelect2(swFeats, False, swSelData) <> UBound(swFeats) + 1 Then
        Err.Raise vbError, "", "Failed to selected profiles"
    End If
        
    Const CONSTRAINT_DEFAULT As Integer = 6
    Const THIN_TYPE_ONE_DIR As Integer = 0
    
    swModel.FeatureManager.InsertProtrusionBlend2 False, True, False, 1, CONSTRAINT_DEFAULT, CONSTRAINT_DEFAULT, 1, 1, True, True, False, 0, 0, THIN_TYPE_ONE_DIR, True, True, True, swGuideCurveInfluence_e.swGuideCurveInfluenceNextGuide

End Sub