PixelCount

Note

PixelCount is declared as an empty Enum block (with a placeholder [_MAX] = 0 member) only because twinBASIC has not yet exposed a type-alias syntax such as Type PixelCount = Long. The source carries a FIXME comment noting the stand-in. Treat PixelCount as a Long-compatible type alias rather than as an enumeration with named members; when alias syntax becomes available, the enum stand-in will be replaced.

A Long-compatible type alias used wherever a measurement in pixels is expected. Used pervasively across the package — every control’s inherited Left, Top, Width, Height are typed as PixelCount, as are Corner.Radius, Padding fields, Border.StrokeSize, and many more.

The package treats one PixelCount as one unscaled pixel; the design-time canvas is at 96 DPI. The runtime scales the value for the active monitor’s DPI when painting, so a 15-pixel corner radius looks the same on a 96-DPI and a 192-DPI display. Inside an ICustomControl.Paint implementation, the scale factor is available through Canvas.RuntimeUICCGetDpiScaleFactor.