Canvas line: what changed
Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.
Title: Canvas line
| Old | New | Line | |
|---|---|---|---|
| 1 | + | The **Canvas.Line(x1, y1, x2, y2)** statement will draw a line from point (x1, y1) to (x2, y2). | |
| 2 | + | ||
| 3 | + | The coordinates of the canvas are: | |
| 4 | + | ||
| 5 | + | <figure> | |
| 6 | + | <img src="canvas2.png" title="canvas2.png" /> | |
| 7 | + | <figcaption>canvas2.png</figcaption> | |
| 8 | + | </figure> | |
| 9 | + | ||
| 10 | + | This code will draw the diagonals in a form: | |
| 11 | + | ||
| 12 | + | ``` pascal | |
| 13 | + | procedure TForm1.Form1Paint(Sender: TObject); | |
| 14 | + | begin | |
| 15 | + | Canvas.Line(0, 0, Width-1, Height-1); | |
| 16 | + | Canvas.Line(0, Height-1, Width-1 ,0); | |
| 17 | + | end; | |
| 18 | + | ``` | |
| 19 | + | ||
| 20 | + | ## See also | |
| 21 | + | ||
| 22 | + | - [[Drawing with canvas]] | |
| 23 | + | ||
| 24 | + | --- | |
| 25 | + | *From the Free Pascal wiki, page "Canvas line", as it stood on 2020-02-07 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).* | |
| 26 | + | Category: GUI | |
| 27 | + | Category: LCL |