FillPattern

Identifies how the colour table held by a Fill is applied across the area being painted. The same colour stops produce very different results depending on the pattern --- a north-to-south gradient with two stops paints a top-to-bottom transition, while a corner gradient with the same stops paints from one corner outward. Used by Fill.Pattern.

Constant	Value	Description
tbPatternNone	0	No fill --- leaves the region transparent.
tbGradientNorthToSouth	1	Linear gradient from the top edge down to the bottom edge.
tbGradientSouthToNorth	2	Linear gradient from the bottom edge up to the top edge.
tbGradientWestToEast	3	Linear gradient from the left edge across to the right edge.
tbGradientEastToWest	4	Linear gradient from the right edge across to the left edge.
tbGradientNorthWestToSouthEast	5	Linear diagonal gradient from the top-left corner to the bottom-right.
tbGradientNorthWestToSouthEastAlt	6	Alternate diagonal: same axis as tbGradientNorthWestToSouthEast but with the stops mirrored about the centre.
tbGradientNorthEastToSouthWest	7	Linear diagonal gradient from the top-right corner to the bottom-left.
tbGradientNorthEastToSouthWestAlt	8	Alternate diagonal: same axis as tbGradientNorthEastToSouthWest but mirrored.
tbGradientSouthWestToNorthEast	9	Linear diagonal gradient from the bottom-left corner to the top-right.
tbGradientSouthWestToNorthEastAlt	10	Alternate diagonal: same axis as tbGradientSouthWestToNorthEast but mirrored.
tbGradientSouthEastToNorthWest	11	Linear diagonal gradient from the bottom-right corner to the top-left.
tbGradientSouthEastToNorthWestAlt	12	Alternate diagonal: same axis as tbGradientSouthEastToNorthWest but mirrored.
tbGradientCornerTopLeft	13	Radial-style gradient emanating from the top-left corner outward.
tbGradientCornerTopRight	14	Radial-style gradient emanating from the top-right corner outward.
tbGradientCornerBottomLeft	15	Radial-style gradient emanating from the bottom-left corner outward.
tbGradientCornerBottomRight	16	Radial-style gradient emanating from the bottom-right corner outward.
tbGradientCornerTopLeftAlt	17	Alternate top-left corner gradient with the stops mirrored.
tbGradientCornerTopRightAlt	18	Alternate top-right corner gradient with the stops mirrored.
tbGradientCornerBottomLeftAlt	19	Alternate bottom-left corner gradient with the stops mirrored.
tbGradientCornerBottomRightAlt	20	Alternate bottom-right corner gradient with the stops mirrored.

The colour table itself comes from the array of FillColorPoint values inside Fill.ColorPoints, interpolated to the configured Granularity.

The same two-stop pair painted with three different patterns produces three quite different results:

' Top fades to bottom
pnlOne.BackgroundFill.SetSimplePattern vbWhite, &H99CCFF, _
        Pattern:=tbGradientNorthToSouth

' Left fades to right
pnlTwo.BackgroundFill.SetSimplePattern vbWhite, &H99CCFF, _
        Pattern:=tbGradientWestToEast

' Emanates from the top-left corner
pnlThree.BackgroundFill.SetSimplePattern vbWhite, &H99CCFF, _
        Pattern:=tbGradientCornerTopLeft

tbPatternNone produces a flat region with no gradient --- the Fill becomes fully transparent and the area behind the control shows through.