static extern void sfString_SetBlendMode(IntPtr This, BlendMode Mode);
static extern void sfSprite_SetBlendMode(IntPtr This, BlendMode Mode);
////////////////////////////////////////////////////////////
/// <summary>
/// Construct a default set of render states with a custom blend mode
/// </summary>
/// <param name="blendMode">Blend mode to use</param>
////////////////////////////////////////////////////////////
public RenderStates(BlendMode blendMode) :
this(blendMode, Transform.Identity, null, null)
{
}