/// <summary>
/// Gets the file icon currently in use by the operating system for the given file
/// </summary>
/// <param name="filepath">The full path to the file</param>
/// <param name="smallIcon">If true the small icon is returned, otherwise the large icon is returned</param>
/// <returns></returns>
private static Icon GetFileIcon(string filepath, bool smallIcon)
{
SHFILEINFO shinfo = new SHFILEINFO();
if (smallIcon)
{
SHGetFileInfo(filepath, 0, ref shinfo, (uint) Marshal.SizeOf(shinfo), SHGFI_ICON | SHGFI_SMALLICON);
}
else
{
SHGetFileInfo(filepath, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), SHGFI_ICON | SHGFI_LARGEICON);
}
return Icon.FromHandle(shinfo.hIcon);
}
private void button1_Click(object sender, EventArgs e)
{
IntPtr hImgSmall; //the handle to the system image list
IntPtr hImgLarge; //the handle to the system image list
string fName; // 'the file name to get icon from
SHFILEINFO shinfo = new SHFILEINFO();
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = "c:\\temp\\";
openFileDialog1.Filter = "All files (*.*)|*.*";
openFileDialog1.FilterIndex = 2;
openFileDialog1.RestoreDirectory = true;
listView1.SmallImageList = imageList1;
listView1.LargeImageList = imageList1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
fName = openFileDialog1.FileName;
//Use this to get the small Icon
//hImgSmall = Win32.SHGetFileInfo(fName, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON);
//Use this to get the large Icon
//hImgLarge = Win32.SHGetFileInfo(fName, 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
//System.Drawing.Icon myIcon = System.Drawing.Icon.FromHandle(shinfo.hIcon);
//imageList1.Images.Add(myIcon);
imageList1.Images.Add(Win32.GetFileLargeIcon(fName));
//imageList1.Images.Add(Win32.GetFileSmallIcon(fName));
//Add file name and icon to listview
listView1.Items.Add(fName, nIndex++);
}
}
public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags);