canvas.strokeRect

canvas.strokeRect(x1, y1, x2, y2, color)

Stroke a rectangle outline defined by the bounding area of x1,y2 to x2,y2 with a specific color. The width of the outline is the last value set to canvas.lineWidth or 1 if no width has ever been specified.

Parameters:
    x1            The x position of the first corner
    y1            The y position of the first corner
    x2            The x position of the second corner
    y2            The y position of the second corner
    color         An RGB color value as an integer value

Example:

// Draw three colored outlines across the canvas
function strokeRGB(name) {    
    var canvas = sb.getCanvas(name);    
    var rw = canvas.width / 3;      
    canvas.strokeRect(0, 0, rw-1, canvas.height, 0xff0000);    
    canvas.strokeRect(rw, 0, 2*rw-1, canvas.height, 0x00ff00);      
    canvas.strokeRect(2*rw, 0, 3*rw-1, canvas.height, 0x0000ff);
}