public unsafe Stream GetThemeStream(
int partId, int stateId, int propertyId, SafeModuleHandle instance)
{
HResult hr = UxThemeExNativeMethods.UxGetThemeStream(
themeFile, theme, partId, stateId, propertyId, out IntPtr stream,
out uint length, instance);
if (!Found(hr) || stream == IntPtr.Zero)
{
return(null);
}
var buffer = new byte[length];
if (length > 0)
{
Marshal.Copy(stream, buffer, 0, buffer.Length);
}
return(new UnmanagedMemoryStream(
(byte *)stream.ToPointer(), 0, length, FileAccess.Read));
}