Unity中 調出打開保存文件的對話框

前置內容

先參考這篇文章, 本文是對其的補充

前置內容拷貝

爲了防止原文被刪, 我給考過來了(全選複製的)

1.OpenFileName數據接收類,如下:

using UnityEngine;
using System.Collections;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenFileName
{
    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;
}

2.系統函數調用類, 如下:

public class LocalDialog
{
    //鏈接指定系統函數       打開文件對話框
    [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern bool GetOpenFileName([In, Out] OpenFileName ofn);
    public static bool GetOFN([In, Out] OpenFileName ofn)
    {
        return GetOpenFileName(ofn);
    }

    //鏈接指定系統函數        另存爲對話框
    [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
    public static extern bool GetSaveFileName([In, Out] OpenFileName ofn);
    public static bool GetSFN([In,Out] OpenFileName ofn)
    {
        return GetSaveFileName(ofn); 
    }
}

3.測試入口類,如下:

using UnityEngine;
using System.Collections;
using System.Runtime.InteropServices;

public class DialogTest : MonoBehaviour {

    void OnGUI()
    {
        if (GUI.Button(new Rect(10,10,100,50),"Open"))
        {
            OpenFileName openFileName = new OpenFileName();
            openFileName.structSize = Marshal.SizeOf(openFileName);
            openFileName.filter = "Excel文件(*.xlsx)\0*.xlsx";
            openFileName.file = new string(new char[256]);
            openFileName.maxFile = openFileName.file.Length;
            openFileName.fileTitle = new string(new char[64]);
            openFileName.maxFileTitle = openFileName.fileTitle.Length;
            openFileName.initialDir = Application.streamingAssetsPath.Replace('/','\\');//默認路徑
            openFileName.title = "窗口標題";
            openFileName.flags = 0x00080000 | 0x00001000 | 0x00000800 | 0x00000008;

            if (LocalDialog.GetSaveFileName(openFileName))
            {
                Debug.Log(openFileName.file);
                Debug.Log(openFileName.fileTitle);
            }
        }
    }
}

Windows相關文檔

應該就是在C#中調用C++寫好的函數. 所以參照C++的官方文檔應該就可以了:

設置文件格式

通過設置Filter這個成員變量, 例如(沒測, 但是應該差不多):

  • 所有文件 | FBX文件(.fbx) | JPG文件(.jpg, .jpeg)
  • "所有文件\0*.*\0FBX文件\0*.fbx\0JPG文件\0*.jpg;*.jpeg\0\0"

最後兩個"\0\0"必須加

似乎有更好的辦法

EditorUtility類中好像有個方法可以直接調用系統自帶的窗口, 不過就跟類名一樣, 感覺只能用在Editor模式下. 之後補充, 還沒看到這裏

發表評論
所有評論
還沒有人評論,想成為第一個評論的人麼? 請在上方評論欄輸入並且點擊發布.
相關文章