Unity打开Windows文件夹选择路径

使用OpenFile.OpenWinFile(InputField);将路径保存到传入的参数InputField输入框中。

/***********************
* Title:        
* FileName:         
* Date:         2020
* Author:       玄策
* Version:      1.0
* UnityVersion: 2019.2.4f1
* Description:  
* Func:           
* -   
***********************/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
using UnityEngine.UI;
public class OpenFile : MonoBehaviour
{
    public static void OpenWinFile(InputField InpF)
    {
        //使用如下：
        OpenDialogDir ofn2 = new OpenDialogDir();
        ofn2.pszDisplayName = new string(new char[2048]); ;     // 存放目录路径缓冲区  
        ofn2.lpszTitle = "选择保存路径";// 标题  
        //ofn2.ulFlags = BIF_NEWDIALOGSTYLE | BIF_EDITBOX; // 新的样式,带编辑框  
        //IntPtr pidlPtr = IntPtr.Zero;
        IntPtr pidlPtr = DllOpenFileDialog.SHBrowseForFolder(ofn2);

        char[] charArray = new char[2048];
        for (int i = 0; i < 2048; i++)
            charArray[i] = '\0';

        DllOpenFileDialog.SHGetPathFromIDList(pidlPtr, charArray);
        string fullDirPath = new String(charArray);
        fullDirPath = fullDirPath.Substring(0, fullDirPath.IndexOf('\0'));

        Debug.Log(fullDirPath);//这个就是选择的目录路径
        InpF.text = fullDirPath;
    }
    public static void OpenWinFile()
    {
        //使用如下：
        OpenDialogDir ofn2 = new OpenDialogDir();
        ofn2.pszDisplayName = new string(new char[2000]); ;     // 存放目录路径缓冲区  
        ofn2.lpszTitle = "Open Project";// 标题  
        //ofn2.ulFlags = BIF_NEWDIALOGSTYLE | BIF_EDITBOX; // 新的样式,带编辑框  
        IntPtr pidlPtr = DllOpenFileDialog.SHBrowseForFolder(ofn2);

        char[] charArray = new char[2000];
        for (int i = 0; i < 2000; i++)
            charArray[i] = '\0';

        DllOpenFileDialog.SHGetPathFromIDList(pidlPtr, charArray);
        string fullDirPath = new String(charArray);
        fullDirPath = fullDirPath.Substring(0, fullDirPath.IndexOf('\0'));

        Debug.Log(fullDirPath);//这个就是选择的目录路径
    }
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenDialogFile
{
    public int structSize = 0;
    public IntPtr dlgOwner = IntPtr.Zero;
    public IntPtr instance = IntPtr.Zero;
    public String filter = null;
    public String customFilter = null;
    public int maxCustFilter = 0;
    public int filterIndex = 0;
    public String file = null;
    public int maxFile = 0;
    public String fileTitle = null;
    public int maxFileTitle = 0;
    public String initialDir = null;
    public String title = null;
    public int flags = 0;
    public short fileOffset = 0;
    public short fileExtension = 0;
    public String defExt = null;
    public IntPtr custData = IntPtr.Zero;
    public IntPtr hook = IntPtr.Zero;
    public String templateName = null;
    public IntPtr reservedPtr = IntPtr.Zero;
    public int reservedInt = 0;
    public int flagsEx = 0;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenDialogDir
{
    public IntPtr hwndOwner = IntPtr.Zero;
    public IntPtr pidlRoot = IntPtr.Zero;
    public String pszDisplayName = null;
    public String lpszTitle = null;
    public UInt32 ulFlags = 0;
    public IntPtr lpfn = IntPtr.Zero;
    public IntPtr lParam = IntPtr.Zero;
    public int iImage = 0;
}

public class DllOpenFileDialog
{
    [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern bool GetOpenFileName([In, Out] OpenDialogFile ofn);

    [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern bool GetSaveFileName([In, Out] OpenDialogFile ofn);

    [DllImport("shell32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern IntPtr SHBrowseForFolder([In, Out] OpenDialogDir ofn);

    [DllImport("shell32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern bool SHGetPathFromIDList([In] IntPtr pidl, [In, Out] char[] fileName);

}