Text and shapes

To put text in a picture, Canvas.TextOut(x, y, 'text') is used: (x, y) are the coordinates of the upper left corner of the text. The look of the text is set with the Canvas.Font properties: Font.Size, Font.Color, Font.Name; the standard brush paints the background of the text, so for text without a background set Brush.Style := bsClear; Canvas.TextWidth('text') gives the width of the text and is used to centre it. For parts of an ellipse there are three methods that take eight numbers: Arc(x1, y1, x2, y2, x3, y3, x4, y4), Chord(…) and Pie(…). The first four numbers give the rectangle around the ellipse; (x3, y3) is a point on the starting ray from the centre and (x4, y4) a point on the ending ray. The line is drawn from the starting ray to the ending ray counterclockwise, so the order of the points matters. Arc draws only the arc, Chord draws the arc and the segment joining its ends, Pie draws the arc and two radii (a sector); Chord and Pie fill the inside with the brush.