Is there an API to get File Description/Type

[Guest]

Example: Take .doc or test.doc and retrieve "Microsoft Word Document". This
is the 3rd column in windows explorer when you're in detail view, and it's
named "type".

I can't find it in the FileInfo class or in the shell32.dll or the
dsofile.dll. (I must be missing it, or is there no API for this?)

 

[Guest]

Craig,

You can get this information using the SHGetFileInfo (like your earlier post
states). Here is an example of how to get the File Description/type that you
are asking about. You should be able to copy and paste this into a C# Console
app. Just be sure that the first parameter to the SHGetFileInfo method is a
valid file.

I hope that this helps you out!

---------------------
using System;
using System.Runtime.InteropServices;

namespace GetFileTypeAndDescription
{

class Class1
{
[STAThread]
static void Main(string[] args)
{
SHFILEINFO shinfo = new SHFILEINFO();
IntPtr i = Win32.SHGetFileInfo(@"d:\temp\test.xls", 0, ref
shinfo,(uint)Marshal.SizeOf(shinfo),Win32.SHGFI_TYPENAME);
string s = Convert.ToString(shinfo.szTypeName.Trim());
Console.WriteLine(s);
}
}

[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);
}
}