The command OBJECT SET FORMAT sets the display format for different objects. Notably, it allows you to set a picture for objects like 3D buttons or picture pop-up menus. The source of the picture will come from a picture library or picture variable.

When using a picture variable, make sure that it is a process variable, as opposed to a local variable. The picture variable must be available for the duration of the dialog, so a process variable must be used in this case. Local variables are destroyed once the method is exited, so, if used, the picture will be undefined and not be displayed.