CommandListChangeReason Enum

Describes why the command list changed in the OnCommandListChanged callback:

• Load - a new command list was loaded, either from the load command or the user has loaded the file through the input editor
• Unload - the current command list was unloaded, either from the unload command or the user has unloaded the file through the input editor
• InternalReload - the user saved changes in the input editor
• ExternalReload - the command list was reloaded due to an external change to the input file on disk

enum CommandListChangeReason {
    Load = 0, 
    Unload = 1, 
    InternalReload = 2, 
    ExternalReload = 3
}