### VB.NET: Basic Custom Command Structure for SP3D API

Source: https://context7_llms

Demonstrates the minimal setup for an SP3D API Custom Command in VB.NET. It inherits from BaseModalCommand and overrides essential methods like OnStart, which serves as the entry point for compiled .dll commands. Dependencies are imported, and basic UI flag settings are shown.

```vb.net
Imports Ingr.SP3D.Common.Client

Public Class CustomCommand
    Inherits BaseModalCommand
    Public Overrides ReadOnly Property EnableUIFlags() As Integer
      Get
          Return MyBase.EnableUIFlags
          EnableUIFlags = EnableUIFlagSettings.ActiveView
      End Get
  End Property
  Public Overrides Sub OnIdle()
      MyBase.OnIdle()
  End Sub
  Public Overrides Sub OnResume()
      MyBase.OnResume()
  End Sub
  Public Overrides Sub OnSuspend()
      MyBase.OnSuspend()
  End Sub
  Public Overrides Sub OnStop()
      MyBase.OnStop()
  End Sub
  ''' <summary>
  ''' The Custom Command starts here, this is the enty point
  ''' </summary>
  ''' <param name="commandID"></param>
  ''' <param name="argument"></param>
  Public Overrides Sub OnStart(ByVal commandID As Integer, ByVal argument As Object)
    MyBase.OnStart(commandID, argument)
  End Sub
```

--------------------------------

### VB.NET: Define Plant Connection Objects for SP3D API

Source: https://context7_llms

Shows how to obtain essential connection objects in VB.NET for editing plant data via a Custom Command. It retrieves TransactionManager, Plant, Model, Catalog, SP3DConnection, and CatalogBaseHelper objects by importing necessary services and utilizing the MiddleServiceProvider.

```vb.net
Imports Ingr.SP3D.Common.Middle.Services

Dim oTransactionMgr As TransactionManager = MiddleServiceProvider.TransactionMgr
oPlant = MiddleServiceProvider.SiteMgr.ActiveSite.ActivePlant
oModel = oPlant.PlantModel
Dim oCatalog As Catalog = oModel.PlantCatalog
Dim oConn As SP3DConnection = oCatalog
Dim oCatalogBaseHelper As New CatalogBaseHelper(oConn)
```

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