InternalScreenShotting.cs

// from: https://gist.github.com/noisecrime/3cb57c2618c7ade9d4398fe7f3835e34

using UnityEditor;
using UnityEngine;

/// <summary>
/// NoiseCrimeStudio OneShots are single scripts that provide specific functionality.
/// </summary>
namespace NoiseCrimeStudios.OneShot.Editor
{
    /// <summary>
    /// Exposes the native Unity 'ScreenShotting' methods to Unity Menu & Shortcut keys.
    /// </summary>
    /// <remarks>
    /// Once imported you can find the menu in either Window/Analysis/Screenshot or Window/Internal/Screenshot.
    /// <see href="https://github.com/Unity-Technologies/UnityCsReference/blob/master/Editor/Mono/GUI/ScreenShotting.cs">
    /// UnityCsReference\Editor\Mono\GUI\ScreenShotting.cs
    /// </see>
    /// Hotkey: % (ctrl on Windows, cmd on macOS), # (shift), & (alt).
    /// </remarks>
    public static class InternalScreenShotting
    {
        private readonly static System.Type s_screenShotsType = Unsupported.GetTypeFromFullName("UnityEditor.ScreenShots");

        private const string MenuItemName =
#if UNITY_2018_2_OR_NEWER
        "Window/Analysis/Screenshot/";
#else
        "Window/Internal/Screenshot/";
#endif
        /// <summary>Sets the entire Unity Window to 762x600.</summary>
        [MenuItem(MenuItemName + "SetMainWindowSize (762x600 px)", false, 115)]
        public static void SetMainWindowSizeSmall() => s_screenShotsType.GetMethod("SetMainWindowSizeSmall")?.Invoke(null, null);

        /// <summary>Sets the entire Unity Window to 1024x768.</summary>
        [MenuItem(MenuItemName + "SetMainWindowSize (1024x768 px)", false, 115)]
        public static void SetMainWindowSize() => s_screenShotsType.GetMethod("SetMainWindowSize")?.Invoke(null, null);

        /// <summary>Screenshots the Game View Window.</summary>	
        [MenuItem(MenuItemName + "Snap Game View Content %&g", false, 115)]
        public static void ScreenGameViewContent()
        {
            Debug.Log("Snap Game View Content");
            s_screenShotsType.GetMethod("ScreenGameViewContent")?.Invoke(null, null);
        }

        /// <summary>Screenshots the active Window.</summary>
        [MenuItem(MenuItemName + "Snap Active Window %&h", false, 115)]
        public static void Screenshot()
        {
            Debug.Log("Snap Active Window");
            s_screenShotsType.GetMethod("Screenshot")?.Invoke(null, null);
        }

        /// <summary>Screenshots the active Window and the rest of the screen to the right. For example SceneView & Inspector.</summary>
        [MenuItem(MenuItemName + "Snap Active Window Extended Right %&j", false, 115)]
        public static void ScreenshotExtendedRight()
        {
            Debug.Log("Snap Active Window Extended Right");
            s_screenShotsType.GetMethod("ScreenshotExtendedRight")?.Invoke(null, null);
        }

        /// <summary>Screenshots the active window toolbar. Bit unreliable.</summary>
        [MenuItem(MenuItemName + "Snap Active Toolbar %&k", false, 115)]
        public static void ScreenshotToolbar()
        {
            Debug.Log("Screenshot Active Toolbar");
            s_screenShotsType.GetMethod("ScreenshotToolbar")?.Invoke(null, null);
        }

        /// <summary>Screenshots the Component you rollover next. Bit unreliable.</summary>
        [MenuItem(MenuItemName + "Snap Component on Rollover %&l", false, 115)]
        public static void ScreenShotComponent()
        {
            Debug.Log("Snap Component - Waiting for rollover on target component");
            s_screenShotsType.GetMethod("ScreenShotComponent", System.Type.EmptyTypes)?.Invoke(null, null);
        }
    }
}