如何获取文件类型文本 [英] How can I get File Type Text

问题描述

如果打开包含PDF文件的文件夹，并将视图设置为详细信息视图，则会在类型"列中找到所使用的"Adob​​e Acrobat文件".

如何通过编程找到此文本.像这里一样:

if you open a folder which have PDF file , and you set view to details view , you will find out that in Type column , ''Adobe Acrobat File'' used .

how can I find this text with programming . like here :

string text = GetTypeText(@"D:\hello.pdf");

文本为"Adob​​e Acrobat文件"；

and text be ''Adobe Acrobat File'';

推荐答案

尝试以下操作:

Try this:

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace GUITester
    {
    public partial class Form1 : Form
        {
        [StructLayout(LayoutKind.Sequential)]
        public struct SHFILEINFO
            {
            public IntPtr hIcon;
            public IntPtr iIcon;
            public uint dwAttributes;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
            public string szDisplayName;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
            public string szTypeName;
            };

        class Win32
            {
            public const uint SHGFI_DISPLAYNAME = 0x00000200;
            public const uint SHGFI_TYPENAME = 0x400;
            public const uint SHGFI_ICON = 0x100;
            public const uint SHGFI_LARGEICON = 0x0; // ''Large icon
            public const uint SHGFI_SMALLICON = 0x1; // ''Small icon

            [DllImport("shell32.dll")]
            public static extern IntPtr SHGetFileInfo(string pszPath, uint
            dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags);
            }
        public Form1()
            {
            InitializeComponent();
            SHFILEINFO shinfo = new SHFILEINFO();
            IntPtr i = Win32.SHGetFileInfo(@"F:\Temp\YYY.pdf", 0, ref shinfo, (uint) Marshal.SizeOf(shinfo), Win32.SHGFI_TYPENAME);
            string s = Convert.ToString(shinfo.szTypeName.Trim());
            MessageBox.Show(s);
            }
        }
    }

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