《 command selectors》

"Selector" is an enumerated integer value used in the switch-case statement in EntryPointFunc()

It is passed from AE to your plugin as the paramter "cmd", which is of type PF_Cmd (itself a type definition of a long integer)

DllExport

PF_Err

EntryPointFunc (

PF_Cmd  cmd,

PF_InData  *in_data,

PF_OutData  *out_data,

PF_ParamDef  *params[],

PF_LayerDef  *output,

void  *extra)

{

      PF_Err  err = PF_Err_NONE;

      try  {

            switch (cmd) {

                 case PF_Cmd_ABOUT:

                      err = About(in_data,out_data,params,output);

                      break;

                 case PF_Cmd_GLOBAL_SETUP:

                      err = GlobalSetup(in_data,out_data,params,output);

                      break;

                 case PF_Cmd_PARAMS_SETUP:

                      err = ParamsSetup(in_data,out_data,params,output);

                      break;

                  // etc...

          }

     }

}