CANVAS:set_pixel

    CANVAS:set_pixel(x, y, color)

Set the pixel value at x, y to the specified color. This is equivalent to drawing a 1x1 filled rectangle.

Parameters

Parameter	Type	Description
x	#number	The x position pixel.
y	#number	The y position pixel.
color	#number	An RGB color value as an integer value.

Example

-- Place a red dot on the canvas
function RedDot(name)
    local canvas = gre.get_canvas(name)
    local size = canvas:get_dimensions()
    local x = size.width / 2
    local y = size.height / 2
    canvas:set_pixel(x, y, 0xff2244)
end