How do I start the IWFileUploader upload function in another component's click event?

[brsoft]

Hi

How do I start the IWFileUploader upload function in another component's onclick event?
E.g.:
procedure TForm1.IWImageFile1AsyncClick (Sender: TObject; EventParams: TStringList);
begin
[... run IWFileUploader upload function ...]
end;

I am using version IW15.1.22.

Regards
Robert