public static ImageSource GetStockIconImage(ShStockIconId iconId, bool large, bool getSystemIcon)
{
BitmapSource imageSource;
if (Environment.OSVersion.Version.Major >= 6 && !getSystemIcon)
{
var sii = new ShStockIconInfo {
cbSize = (UInt32)Marshal.SizeOf(typeof(ShStockIconInfo))
};
int errCode = Shell32.SHGetStockIconInfo(iconId, ShGSI.SHGSI_ICON | (large ? ShGSI.SHGSI_LARGEICON : ShGSI.SHGSI_SMALLICON) | ShGSI.SHGSI_SHELLICONSIZE, ref sii);
Marshal.ThrowExceptionForHR(errCode);
imageSource = Imaging.CreateBitmapSourceFromHIcon(sii.hIcon, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
User32.DestroyIcon(sii.hIcon);
}
else
{
Icon icon;
switch (iconId)
{
case ShStockIconId.SIID_APPLICATION:
icon = SystemIcons.Application;
break;
case ShStockIconId.SIID_HELP:
icon = SystemIcons.Question;
break;
case ShStockIconId.SIID_ERROR:
icon = SystemIcons.Error;
break;
case ShStockIconId.SIID_INFO:
icon = SystemIcons.Information;
break;
case ShStockIconId.SIID_WARNING:
icon = SystemIcons.Warning;
break;
case ShStockIconId.SIID_SHIELD:
icon = SystemIcons.Shield;
break;
default:
throw new ArgumentException($@"No system icon available for {iconId}", nameof(iconId));
}
imageSource = Imaging.CreateBitmapSourceFromHIcon(icon.Handle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
}
return(imageSource);
}
private static BitmapSource GetWindowsIcon(WindowsIconKey icon)
{
if (icons.TryGetValue(icon, out var source))
{
return(source);
}
var info = new ShStockIconInfo();
info.cbSize = (uint)Marshal.SizeOf(info);
SHGetStockIconInfo(icon.Type, SHGSI_ICON | icon.Size, ref info);
// var bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(info.hIcon, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
using var iconDrawing = Icon.FromHandle(info.hIcon);
using var bitmap = iconDrawing.ToBitmap();
var hBitmap = bitmap.GetHbitmap();
try
{
BitmapSizeOptions size;
switch (icon.Size)
{
case SHGSI_SMALLICON:
size = BitmapSizeOptions.FromWidthAndHeight(16, 16);
break;
default:
size = BitmapSizeOptions.FromWidthAndHeight(32, 32);
break;
}
var wpfBitmap = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hBitmap,
IntPtr.Zero,
Int32Rect.Empty,
size);
wpfBitmap.Freeze();
icons[icon] = wpfBitmap;
return(wpfBitmap);
}
finally
{
DeleteObject(hBitmap);
DestroyIcon(info.hIcon);
}
}
internal static extern Int32 SHGetStockIconInfo(ShStockIconId siid, ShGSI uFlags, ref ShStockIconInfo psii);
private static extern int SHGetStockIconInfo(uint siid, uint uFlags, ref ShStockIconInfo psii);
