public static BitmapSource?GetIcon(string fullPath, IconType iconType)
{
var info = new SHFILEINFO(true);
var flags = NativeConsts.SHGFI.Icon;
if (iconType == IconType.Large)
{
flags |= NativeConsts.SHGFI.LargeIcon;
}
else if (iconType == IconType.Small)
{
flags |= NativeConsts.SHGFI.SmallIcon;
}
var fileAttributes = NativeConsts.FILE_ATTRIBUTE.Normal;
lock (lockObject)
{
if (NativeMethods.SHGetFileInfo(fullPath, fileAttributes, out info, (uint)Marshal.SizeOf(info), flags) != 0 && info.hIcon != IntPtr.Zero)
{
return(BitmapSourceConverters.ToBitmapSource(info.hIcon));
}
}
return(null);
}
private static object?GetWindowIconSource(IntPtr hWnd, bool isIntern)
{
try
{
var iconHandle = default(IntPtr);
iconHandle = NativeMethods.SendMessage(hWnd, (int)NativeConsts.Message.WM_GETICON, NativeConsts.ICON_SMALL2, IntPtr.Zero);
if (iconHandle == IntPtr.Zero)
{
iconHandle = NativeMethods.GetClassLongPtr(hWnd, NativeConsts.GCL_HICON);
}
if (iconHandle == IntPtr.Zero)
{
iconHandle = NativeMethods.LoadIcon(IntPtr.Zero, (IntPtr)0x7F00 /*IDI_APPLICATION*/);
}
if (iconHandle != IntPtr.Zero)
{
return(BitmapSourceConverters.ToBitmapSource(iconHandle, !isIntern));
}
return(null);
}
catch (Exception)
{
return(null);
}
}
