enumChartGradientStyle

typedef enum
{
	gradientstyle_horizontal0 = 0,
	gradientstyle_horizontal1 = 1,
	gradientstyle_horizontal2 = 2,
	gradientstyle_horizontal3 = 3,
	gradientstyle_verticall0  = 4,
	gradientstyle_verticall1  = 5,
	gradientstyle_verticall2  = 6,
	gradientstyle_verticall3  = 7,
	gradientstyle_diagonalUp0 = 8,
	gradientstyle_diagonalUp1 = 9,
	gradientstyle_diagonalUp2 = 10,
	gradientstyle_diagonalUp3 = 11,
	gradientstyle_diagonalDown0 = 12,
	gradientstyle_diagonalDown1 = 13,
	gradientstyle_diagonalDown2 = 14,
	gradientstyle_diagonalDown3 = 15,
	gradientstyle_fromCorner0 = 16,
	gradientstyle_fromCorner1 = 17,
	gradientstyle_fromCorner2 = 18,
	gradientstyle_fromCorner3 = 19,
	gradientstyle_fromCenter0 = 20,
	gradientstyle_fromCenter1 = 21
} enumChartGradientStyle;

used in IXlsChartAreaStyleGradientSingleColor::GradientStyle property,
and in IXlsChartAreaStyleGradientDualColor::GradientStyle property,
and in IXlsChartAreaStyleGradientPreset::GradientStyle property,
and in IXlsGradientPattern::GradientStyle property.