EditorExtensionsThroughExperimentation.cs

using UnityEngine;
using System.Collections;
using UnityEditor;
using System.IO;
using System;

public class LevelScreenshot: EditorWindow {
	// Quality Settings     
	enum Quality {
		high = 4, Medium = 3, Normal = 2, Low = 1
	}
	// Default Quality Option     
	// This field is serializable to enable changes during runtime     
	[SerializeField]
	Quality option = Quality.Normal;

	// This field is serializable to enable changes during runtime     
	[SerializeField]
	string savePath = "./Screenshots/Screenshot";

	// Menu Option Location and Name     
	[MenuItem("Window/SuperStick/LevelScreenshot")]
	public static void ShowWindow() {
		EditorWindow.GetWindow(typeof(LevelScreenshot));

	}
	// Utility function to create screenshots directory     

	static void CreateDir() {
		if (!Directory.Exists("Screenshots")) {
			Directory.CreateDirectory("Screenshots");

		}

	}
	// Draws each GUI element onto the editor window    
	void OnGUI() {
		// Draw Label         
		GUILayout.Label("Options: ", EditorStyles.boldLabel);
		// Draw Popup (Dropdown) for Quality Options         
		option = (Quality) EditorGUILayout.EnumPopup("Quality", option);
		Rect r = EditorGUILayout.BeginHorizontal("Button");

		// Call Create Directory         
		CreateDir(); // Set Button Color         
		GUI.backgroundColor = Color.yellow;

		// Draw Button and placement         
		if (GUI.Button(r, GUIContent.none)) {

			// Button Trigger Event             
			Application.CaptureScreenshot(string.Format(savePath + "-{0:yyyy-MM-dd_hh-mm-ss-tt}.png", DateTime.Now), (int) option);

		}
		GUI.backgroundColor = Color.clear;
		// Button Label         
		GUILayout.Label("Take Screenshot");
		EditorGUILayout.EndHorizontal();
		// Output Location         
		GUILayout.Label("Screenshot Path: ");
		EditorGUILayout.LabelField(savePath);
	}
}