public ExtractIconWrapper(IExtractIconW ExtractW)
{
if (ExtractW == null)
{
throw new ArgumentNullException("ExtractW");
}
this.ExtractW = ExtractW;
}
public void Dispose()
{
if (this.ExtractW != null)
{
Marshal.ReleaseComObject(this.ExtractW);
this.ExtractW = null;
}
}
/// <summary>Gets the icon for the item using the specified characteristics.</summary>
/// <param name="iei">The IExtractIconW from which to retrieve the icon.</param>
/// <param name="imgSz">The width, in pixels, of the icon.</param>
/// <param name="hico">The resulting icon handle, on success, or <c>null</c> on failure.</param>
/// <returns>The result of function.</returns>
public static HRESULT LoadIconFromExtractIcon(IExtractIconW iei, ref uint imgSz, out SafeHICON hico)
{
var szIconFile = new StringBuilder(Kernel32.MAX_PATH);
var hr = iei.GetIconLocation(GetIconLocationFlags.GIL_FORSHELL, szIconFile, szIconFile.Capacity, out var iIdx, out _);
if (hr.Succeeded)
{
if (szIconFile.ToString() != "*")
{
hr = iei.Extract(szIconFile.ToString(), (uint)iIdx, (ushort)imgSz, out hico);
}
else
{
hr = LoadIconFromSystemImageList(iIdx, ref imgSz, out hico);
}
}
else
{
hico = null;
}
return(hr);
}
