IDrawGraphContainsXY 方法

bool ContainsXY(
	float dX,
	float dY
)

Function ContainsXY ( 
	dX As Single,
	dY As Single
) As Boolean

bool ContainsXY(
	float dX, 
	float dY
)

abstract ContainsXY : 
        dX : float32 * 
        dY : float32 -> bool