Draws a line between the provided coordinates with the given thickness (in pixels) and colour(s).
If two colours are supplied, the line will be drawn as a gradient from the first colour at the first coordinates to the second colour at the second coordinates.

DX11 DRAW LINE x1, y1, x2, y2, colour, [colour2], [thickness]

x1

Integer
The first X coordinate of the line.

y1

Integer
The first Y coordinate of the line.

x2

Integer
The second X coordinate of the line.

y2

Integer
The second Y coordinate of the line.

colour

Dword
The colour to draw the line in (or the colour of the first coordinate if providing two colour arguments).

[Optional] colour2

Dword
The colour to interpolate from the first colour to as the line approaches its final coordinate.

[Optional] thickness

Dword
The thickness of the line (in pixels). Will default to 1 if omitted.

This function does not return a value.

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