Function InitWidget

widget.go:105–128

InitWidget initializes a Widget.

(widget Widget, parent Window, className string, style, exStyle uint32)

// InitWidget initializes a Widget.
func InitWidget(widget Widget, parent Window, className string, style, exStyle uint32) error {
	if parent == nil {
		return newError("parent cannot be nil")
	}

	if err := InitWindow(widget, parent, className, style|win.WS_CHILD, exStyle); err != nil {
		return err
	}

	if container, ok := parent.(Container); ok {
		if container.Children() == nil {
			// Required by parents like MainWindow and GroupBox.
			if win.SetParent(widget.Handle(), container.Handle()) == 0 {
				return lastError("SetParent")
			}
		} else {
			if err := container.Children().Add(widget); err != nil {
				return err
			}
		}
	}

	return nil
}

func (wb *WidgetBase) init(widget Widget) error {
	wb.graphicsEffects = newWidgetGraphicsEffectList(wb)