/// <summary>
/// We have to get handle of stream to perform calls to API of <c>astra.DLL</c>.
/// And we can do it using Reflection (to access protected property <c>Handle</c> of <c>DataStream</c> class).
/// </summary>
/// <param name="stream">Stream object. Can be <c>null</c>.</param>
/// <returns>Astra SDK handle of stream object. Can be <c>IntPtr.Zero</c>.</returns>
private static IntPtr GetHandle(this Astra.ImageStream stream)
{
if (stream == null)
{
return(IntPtr.Zero);
}
var streamHandleObj = handleOfImageStreamPropertyInfo.GetValue(stream);
if (streamHandleObj == null || !(streamHandleObj is IntPtr))
{
return(IntPtr.Zero);
}
return((IntPtr)streamHandleObj);
}
private static string FormatFieldOfView(Astra.ImageStream stream)
=> $"{ToDegrees(stream.HorizontalFieldOfView)}° x {ToDegrees(stream.VerticalFieldOfView)}°";
