# selectedModuleIdentifier

> The identifier of the Profiler module that is currently selected in the Profiler Window, or null if no Module is currently selected.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.5/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public string selectedModuleIdentifier { get; }
```

### Remarks

The [Profiler Window](/engine/6000.5/script-reference/unityeditor/profilerwindow.md) shows the Module Details panel in its bottom half for the currently selected module. Compare this field's value to constants like [ProfilerWindow.cpuModuleIdentifier](/engine/6000.5/script-reference/unityeditor/profilerwindow/cpumoduleidentifier.md) and [ProfilerWindow.gpuModuleIdentifier](/engine/6000.5/script-reference/unityeditor/profilerwindow/gpumoduleidentifier.md) to check which module is currently selected.

### Examples

```csharp
using UnityEditor;
using UnityEditor.Profiling;
using UnityEngine;

public class Example : EditorWindow
{
    ProfilerWindow m_Profiler = null;
    [MenuItem("Window/Analysis/Profiler Extension")]
    public static void ShowExampleWindow()
    {
        var window = GetWindow<Example>();
        window.m_Profiler = EditorWindow.GetWindow<ProfilerWindow>();
    }

    void OnGUI()
    {
        // First make sure there is an open Profiler Window
        if (m_Profiler == null)
            m_Profiler = EditorWindow.GetWindow<ProfilerWindow>();
        // If the currently selected Module is not the CPU Usage module, setting the selection will not be visible to the user immediately
        if (m_Profiler.selectedModuleIdentifier == ProfilerWindow.cpuModuleIdentifier)
        {
            // Get the CPU Usage Profiler module's selection controller interface to interact with the selection
            var cpuSampleSelectionController = m_Profiler.GetFrameTimeViewSampleSelectionController(ProfilerWindow.cpuModuleIdentifier);
            // If the current selection object is null, there is no selection to print out.
            using (new EditorGUI.DisabledScope(cpuSampleSelectionController.selection == null))
            {
                if (GUILayout.Button("Print current Selection"))
                {
                    // Get the currently shown selection and log out some of its details
                    var selection = cpuSampleSelectionController.selection;
                    Debug.Log($"The sample currently selected in the CPU Usage Profiler module is {selection.sampleDisplayName} at a depth of {selection.markerPathDepth}.");
                }
            }
        }
    }
}
```