static IntPtr GetIcon(int iImage, SHIL_IconSizes size)
{
IImageList spiml = null;
var guil = new Guid(IID_IImageList2);//or IID_IImageList
NativeMethods.SHGetImageList((int)size, ref guil, ref spiml);
var hIcon = IntPtr.Zero;
spiml.GetIcon(iImage, NativeMethods.ILD_TRANSPARENT | NativeMethods.ILD_IMAGE, ref hIcon);
return(hIcon);
}
public static Image GetPngFromExtension(string ext, SHIL_IconSizes size)
{
ext = ext.Replace("*", "").Replace(".", "");
var hIcon = GetIcon(GetIconIndex("*." + ext), size);
Image result = null;
// from native to managed
using (var ico = (Icon)Icon.FromHandle(hIcon).Clone())
{
// save to stream to convert to png, then back.
using (var stream = new MemoryStream())
{
ico.ToBitmap().Save(stream, ImageFormat.Png);
result = Image.FromStream(stream);
}
}
NativeMethods.DestroyIcon(hIcon); // don't forget to cleanup
return(result);
}
