ActiveFrameChangedEventArgs.OldFrame

property · ActiveFrameChangedEventArgs · cAlgo.API

DesktopCLICloud

Returns the old / previous active frame or null.

Environment behaviour

CLI — not supported. Available to plugins only, and plugins cannot run in the CLI.

Cloud — not supported. Available to plugins only, and plugins cannot run in the cloud.

Definition

C#Python

public Frame OldFrame {get;}

activeFrameChangedEventArgs.OldFrame: Frame

Returns Frame

Examples

C#Python

protected override void OnStart()
{
    ChartManager.ActiveFrameChanged += OnActiveFrameChanged;
}

private void OnActiveFrameChanged(ActiveFrameChangedEventArgs args)
{
    if (args.OldFrame != null)
        Print("Previous active frame: {0}, index: {1}", args.OldFrame.Id, args.OldFrame.Index);
}

def on_start(self):
    api.ChartManager.ActiveFrameChanged += self.on_active_frame_changed

def on_active_frame_changed(self, args):
    if args.OldFrame is not None:
        api.Print(f"Previous active frame: {args.OldFrame.Id}, index: {args.OldFrame.Index}")