Unity C# GetSaveFileName()的实例详解

互联网 17-6-24

唉哟，这次厉害咯，网上搜罗了好久，终于被我找到汉化的保存对话框了，根据网上的一些前辈总结的内容，做了一些修改，

先放个效果图：

首先需要定义一个OpenFileName的类：

[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;  }

　　当然，也不是都用到了，只用到了一小部分，有性趣的童鞋可以个性化一下保存对话框，

然后是最重要的委托GetSaveName()方法：

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

　　挡挡挡，最后调用一下即可：

public static void OpenDialog(Action<Stream> onSave)      {          OpenFileName ofn = new OpenFileName();          ofn.structSize = Marshal.SizeOf(ofn);                ofn.filter = "Excel (*.xls)\0*.xls\0\0";          ofn.file = new string(new char[256]);          ofn.maxFile = ofn.file.Length;          ofn.fileTitle = new string(new char[64]);          ofn.maxFileTitle = ofn.fileTitle.Length;          ofn.initialDir = UnityEngine.Application.dataPath;//默认路径ofn.title = "保存文件";          ofn.defExt = ".xls";//显示文件的类型ofn.flags = 0x00080000 | 0x00001000 | 0x00000800 | 0x00000200 | 0x00000008;if (DllTest.GetSaveFileName(ofn))          {              dosomething();string Savepath = Path.GetDirectoryName (ofn.file);              Process.Start (Savepath);          }      }