QColorfromHsl

QColorfromHsl refers to constructing a QColor object from Hue, Saturation, and Lightness values in the Qt framework. The QColor class provides static helpers that accept HSL components and return a color object. This approach is convenient when color data originates in the HSL color space or when you want intuitive adjustments by hue, saturation, and lightness rather than red, green, and blue.

Syntax and overloads: The primary overload is static QColor QColor::fromHsl(int h, int s, int l, int a = 255); Hue h is in degrees [0, 359], saturation s in [0, 255], lightness l in [0, 255], and alpha a in [0, 255]. There is also a floating-point variant: static QColor QColor::fromHslF(qreal h, qreal s, qreal l, qreal a = 1.0); values are in [0.0, 1.0]. The function clamps out-of-range inputs and returns a QColor representing the corresponding sRGB color.

Usage: The returned QColor can be used wherever colors are required, such as widget palettes, styles, or painting. Example: QColor blueish = QColor::fromHsl(210, 128, 128); QColor translucent = QColor::fromHslF(0.5, 0.5, 0.5, 0.75);

Related methods include QColor::setHsl and QColor::setHslF to modify an existing color, and alternative constructors like fromRgb and fromHsv for other color spaces.

See also: QColor class, fromRgb, fromHsv, setHsl, setHslF.