public static extern IntPtr SHGetFileInfo(IntPtr pidl,
uint dwFileAttributes,
ref SHFILEINFO psfi,
uint cbSizeFileInfo,
uint uFlags);
/// <summary>
/// Sets the icon for the given path
/// </summary>
private void GenerateNodeDisplayDetails()
{
//if the path exists
if (icon == null)
{
//needed to get a handle to our icon
SHFILEINFO shinfo = new SHFILEINFO();
//If we have an actual path, then we pass a string
if (fullPath.Length > 0)
{
//get the icon and display name
Win32.SHGetFileInfo(fullPath, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON | Win32.SHGFI_DISPLAYNAME);
}
else
{
//If we get a blank path we assume the root of our file system, so we get a pidl to My "Computer"
//Get a pidl to my computer
IntPtr tempPidl = System.IntPtr.Zero;
Win32.SHGetSpecialFolderLocation(0, Win32.CSIDL_DRIVES, ref tempPidl);
//get the icon and display name
Win32.SHGetFileInfo(tempPidl, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_PIDL | Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON | Win32.SHGFI_DISPLAYNAME);
//free our pidl
Marshal.FreeCoTaskMem(tempPidl);
}
//create the managed icon
this.icon =(Icon)System.Drawing.Icon.FromHandle(shinfo.hIcon).Clone();
this.szDisplayName = shinfo.szDisplayName;
//dispose of the old icon
Win32.DestroyIcon(shinfo.hIcon);
}
}