'宣言 Sub CurveTo( _ ByVal x1 As Single, _ ByVal y1 As Single, _ ByVal x2 As Single, _ ByVal y2 As Single, _ ByVal x3 As Single, _ ByVal y3 As Single _ )
void CurveTo( float x1, float y1, float x2, float y2, float x3, float y3 )
IGraphics インターフェース IGraphics メンバ