showsStateBy
The flags that indicate how the button cell shows its alternate state.
Declaration
var showsStateBy: NSCell.StyleMask { get set }Discussion
The value of this property is the logical OR of one or more of the cell masks described in the “Constants” section of NSCell.
If both NSChangeGrayCellMask and NSChangeBackgroundCellMask are specified, both are recorded, but the actual behavior depends on the button cell’s image. If the button has no image, or if the image has no alpha (transparency) data, NSChangeGrayCellMask is used. If the image exists and has alpha data, NSChangeBackgroundCellMask is used; this arrangement allows the color swap of the background to show through the image’s transparent pixels.