Screen fullpath to PasteBoard in Unity

CallTest.cs

using UnityEngine;
using System.IO;
using System.Collections;
 
public class CallTest : MonoBehaviour
{
    private GameObject theta;
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.C))
        {
            WinApi.ClipItemPath(480, 150);
            Invoke("DelayMethod", 0.5f);
        }
        if (Input.GetKeyDown(KeyCode.V))
        {
            WinApi.ClipItemPath(330, 280);
            Invoke("DelayMethod", 0.5f);
        }
    }

    void DelayMethod()
    {
        Debug.Log(GUIUtility.systemCopyBuffer); // 前後に " が付いているので除去して使ってください。
    }
}

WinAPI.cs

using UnityEngine;
using System;
using System.Text;
using System.Runtime.InteropServices;

public class WinApi : MonoBehaviour
{
    [DllImport("USER32.dll")]
    static extern void SetCursorPos(int X, int Y);

    [DllImport("USER32.dll")]
    static extern void mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);

    [DllImport("user32.dll")]
    public static extern uint keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);
    
    private const int MOUSEEVENTF_LEFTDOWN = 0x0002;
    private const int MOUSEEVENTF_LEFTUP = 0x0004;
    private const int MOUSEEVENTF_RIGHTDOWN = 0x0008;
    private const int MOUSEEVENTF_RIGHTUP = 0x0010;
    private const int KEYEVENTF_EXTENDEDKEY = 0x0001;
    private const int KEYEVENTF_KEYUP = 0x0002;
    private const int VK_LSHIFT = 0xA0;
    private const int VK_RSHIFT = 0xA1;
    private const int VK_A = 0x41;
    
    public static void ClipItemPath(int x, int y)
    {
        // 指定座標にカーソルを移動してクリック
        SetCursorPos(x, y);
        mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
        mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
        
        // Shift + 右クリック + A でパスをクリップボードへコピー
        keybd_event(VK_LSHIFT, 0x45, KEYEVENTF_EXTENDEDKEY, 0);
        mouse_event(MOUSEEVENTF_RIGHTDOWN, 0, 0, 0, 0);
        mouse_event(MOUSEEVENTF_RIGHTUP, 0, 0, 0, 0);
        keybd_event(VK_LSHIFT, 0x45, KEYEVENTF_KEYUP, 0);
        keybd_event(VK_A, 0x45, KEYEVENTF_EXTENDEDKEY, 0);
        keybd_event(VK_A, 0x45, KEYEVENTF_KEYUP, 0);

        // Shiftキーが押しっぱなしになる場合があるので対策
        keybd_event(VK_RSHIFT, 0x45, KEYEVENTF_EXTENDEDKEY, 0);
        keybd_event(VK_RSHIFT, 0x45, KEYEVENTF_KEYUP, 0);
    }
}