[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'Contnrs' (#fcl)

# TObjectListCallback

Method callback type for TFPObjectList.ForEachCall

## Declaration

Source position: contnrs.pp line 28

`type TObjectListCallback = procedure(`
`data: TObject;`
`arg: pointer`
`) of object;`

## Arguments

`data` |  | Object from the list
`arg` |  | Data passed to ForEachCall

## Description

TObjectListCallback is used as the prototype for the TFPObjectList.ForEachCall link callwhen a method should be called. The Data argument will contain each of the objects in the list in turn, and the Data argument will contain the data passed to the ForEachCall call.

## See also

TFPObjectList.ForEachCall |  | For each object in the list, call a method or procedure, passing it the object.