To draw graphics in a Delphi application, you draw on an object's canvas, rather than directly on the object. The canvas is a property of the object, and is itself an object.
Wanna learn more about the TCanvas properties and mehods? Meet "Symmetric Canvas Drawing" - a tool to teach 6th formers about using the canvas and drawing on it in Delphi.
Symmetric Canvas DrawingDrawing is the creation of a single, specific graphic element, such as a line or a shape, with code. In your code, you tell an object to draw a specific graphic in a specific place on its canvas by calling a drawing method of the canvas.
In symmetric canvas drawing as you move your move (holding the mouse button) a "line" is being drawn on the canvas - and is being symmetricaly copied over x and y axis.
"Symmetric Canvas Drawing" was submitted by Kevin Alpin.
Do you have a FDA(C)? Submit your Delphi code to the Fancy Delphi Application Contest.