The cell picture is an optional picture displayed in a cell as graphic component. The cell picture can be of any size and any number of different pictures can be used. In a fixed height tree control, all cell pictures used must be the same height and width as the registered cell picture (see SetCellInfo). In a variable height tree control, cell pictures can be of varying height and width, but all must be smaller or equal in size to the registered cell picture (see SetCellInfo).