Fix SOLIDWORKS macro issues with lightweight components in assembly or drawing
Symptoms
SOLIDWORKS macro is working with the components in the assembly (e.g. reading/writing properties, materials, working with features etc.). Error Run-time Error '91': Object variable or With block variable not set is displayed when macro is run.
Cause
Components can be loaded lightweight which means that their underlying model is not loaded into the memory. In this case all APIs of the component's model are not available
Resolutions
- Check if the pointer to reference model is not null. Display the error message to the user
- Use AssemblyDoc::ResolveAllLightWeightComponents or AssemblyDoc::ResolveAllLightWeight method to forcibly resolve components states
Dim swApp As SldWorks.SldWorks
Dim swAssy As SldWorks.AssemblyDoc
Sub main()
Set swApp = Application.SldWorks
Set swAssy = swApp.ActiveDoc
swAssy.ResolveAllLightWeightComponents True
Dim swComp As SldWorks.Component2
Set swComp = swAssy.SelectionManager.GetSelectedObject6(1, -1)
Dim swRefModel As SldWorks.ModelDoc2
Set swRefModel = swComp.GetModelDoc2
If Not swRefModel Is Nothing Then 'Check if the pointer is not nothing
MsgBox "Material of " & swComp.Name2 & ": " & swRefModel.MaterialIdName
Else
MsgBox "Component's model is not loaded into the memory" 'display the error
End If
End Sub