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.
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
- 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