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27 cze 2023 · Drawing shapes. Drawing a rectangle. Many controls expose their canvas as a public Canvas property (or via an OnPaint event). Such controls include TForm, TPanel and TPaintBox. Let's use TForm as an example to demonstrate how to paint on a canvas.
- TShape
TShape is a component that creates a shape (triangle, circle...
- TShape
12 sie 2017 · TShape is a component that creates a shape (triangle, circle or square) on the surface of its parent (such as a TForm). It is a TGraphicControl descendant and is available under the Additional tab of the Component Palette.
30 lis 2013 · Without good reason I'd NEVER modify the Lazarus sources - you'll have to update your modifications each time you update Lazarus. Post a feature request to bugtracker for more triangle shapes. For a quick solution use a TPaintbox where you can draw any shape in the OnPaint event.
3 mar 2011 · You can add a new method (whose header conforms to the event you want to handle) to existing classes or create a new class with the method instead. Example (method added to form): Code: Delphi [Select] [+] [-] interface. type.
BGRABitmap is a graphics library for FreePascal and Lazarus that offers extensive capabilities for image manipulation, including transparency management, direct pixel access, and various effects for dynamic image generation.
In this article, various standard components of the Lazarus Component Library (LCL) are examined in more detail, and various important properties are discussed. All of the controls described in this contribution are located on the first tab of the component palette in the Lazarus IDE.
13 kwi 2023 · This is the standard Lazarus package for drawing plots and charts. In this tutorial we will draw some elemental mathematical functions by TAChart. We will create a chart with three line series for the functions. y=cos (x), y=sin (x), and. y=cos (x)*sin (x).
