code from http://www.codeproject.comusing System; using System.Drawing; using System.Collections.Generic; using System.Text; using System.Runtime.InteropServices;namespace DocDog.CS { /// <summary> /// Summary description for ShellIcon. /// </summary> /// <summary> /// Summary description for ShellIcon. Get a small or large Icon with an easy C# function call /// that returns a 32x32 or 16x16 System.Drawing.Icon depending on which function you call /// either GetSmallIcon(string fileName) or GetLargeIcon(string fileName) /// </summary> public class ShellIcon { [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_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 ShellIcon() { // // TODO: Add constructor logic here // } public static Icon GetSmallIcon(string fileName) { IntPtr hImgSmall; //the handle to the system image list SHFILEINFO shinfo = new SHFILEINFO(); //Use this to get the small Icon hImgSmall = Win32.SHGetFileInfo(fileName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON); //The icon is returned in the hIcon member of the shinfo struct return System.Drawing.Icon.FromHandle(shinfo.hIcon); } public static Icon GetLargeIcon(string fileName) { IntPtr hImgLarge; //the handle to the system image list SHFILEINFO shinfo = new SHFILEINFO(); //Use this to get the large Icon hImgLarge = Win32.SHGetFileInfo(fileName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_LARGEICON); //The icon is returned in the hIcon member of the shinfo struct return System.Drawing.Icon.FromHandle(shinfo.hIcon); } } }
using System.Drawing;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;namespace DocDog.CS
{
/// <summary>
/// Summary description for ShellIcon.
/// </summary>
/// <summary>
/// Summary description for ShellIcon. Get a small or large Icon with an easy C# function call
/// that returns a 32x32 or 16x16 System.Drawing.Icon depending on which function you call
/// either GetSmallIcon(string fileName) or GetLargeIcon(string fileName)
/// </summary>
public class ShellIcon
{
[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_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 ShellIcon()
{
//
// TODO: Add constructor logic here
//
}
public static Icon GetSmallIcon(string fileName)
{
IntPtr hImgSmall; //the handle to the system image list
SHFILEINFO shinfo = new SHFILEINFO();
//Use this to get the small Icon
hImgSmall = Win32.SHGetFileInfo(fileName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON);
//The icon is returned in the hIcon member of the shinfo struct
return System.Drawing.Icon.FromHandle(shinfo.hIcon);
} public static Icon GetLargeIcon(string fileName)
{
IntPtr hImgLarge; //the handle to the system image list
SHFILEINFO shinfo = new SHFILEINFO();
//Use this to get the large Icon
hImgLarge = Win32.SHGetFileInfo(fileName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_LARGEICON);
//The icon is returned in the hIcon member of the shinfo struct
return System.Drawing.Icon.FromHandle(shinfo.hIcon);
}
}
}