CustomControls

twinBASIC now offers experimental support for CustomControls. CustomControls are implemented using the BASIC language, allowing implementers to design controls directly from the twinBASIC environment.

A few highlights;

• completely custom drawn controls, with no external or third-party dependencies (tiny footprint)
• support 32-bit RGBA for full alpha-transparency
• support high-DPI modes (per-monitor), requiring little thought whilst designing new controls
• full debugging support via the usual twinBASIC integrated debugger
• designed for efficiency to support complex controls with hundreds of elements (e.g. a DataGrid with 100’s of cells)
• designed for flexibility, allowing for curved corners, multiple borders, background gradients and much more
• the form engine supports anchoring and docking without any considerations needed for CustomControl implementers
• simple property sheet synchronization via the built-in form designer

See also

• CustomControls package reference – the full reference for the built-in Waynes… controls and the framework they are built on, including ICustomControl, Canvas, and the style helpers (Fill, Corners, Borders, TextRendering, …)

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Table of contents

• Defining a CustomControl
• Property Sheet and Object Serialization
• Painting / Drawing to Your Control
• Notes About the Form Designer