/// <summary>
/// Marshal the image from native if not already marshaled.
/// </summary>
private void EnsureMarshalled()
{
if (!nativeFrame.HasValue)
{
nativeFrame = (NUI_FUSION_IMAGE_FRAME)Marshal.PtrToStructure(
NativeFrameHandle.ToIntPtr(Handle),
typeof(NUI_FUSION_IMAGE_FRAME));
}
}
/// <summary>
/// Convert a NativeFrameHandle to IntPtr.
/// </summary>
/// <param name="frameHandle">The NativeFrameHandle to be converted.</param>
/// <returns>
/// Returns IntPtr.Zero if the input NativeFrameHandle is null or the underlying IntPtr value.
/// </returns>
public static IntPtr ToIntPtr(NativeFrameHandle frameHandle)
{
return(null != frameHandle ? frameHandle.handle : IntPtr.Zero);
}
/// <summary>
/// Convert a FusionImageFrame to HandleRef structure.
/// </summary>
/// <param name="imageFrame">The FusionImageFrame to be converted.</param>
/// <returns>
/// Returns null if the input <para>imageFrame</para> is null or a HandleRef structure.
/// </returns>
public static HandleRef ToHandleRef(FusionImageFrame imageFrame)
{
return(null != imageFrame ?
new HandleRef(imageFrame, NativeFrameHandle.ToIntPtr(imageFrame.Handle)) : new HandleRef());
}
