android - (Indy) How to catch a Button click event before ConnectTimeout is reached -


i want make simple function user clicks on on/off button , makes indy tcp client try connect ip, connection takes long (due bad phone signal) , user may tap once again button turn off. indy catch event (button click) when connecttimeout reached or when connection succeed. thinking in put low connecttimeout , make multiple tries connect can catch button click without waiting long, there way catch button click event anytime when trying connect? thank you.

@edit: well, decided make first idea: multiple tries connect low connecttimeout , count them until reach desired connecttimeout, while in mean time can check button press turn off.

i tested using phone hspa+ connection , metal plate (to simulate bad signal) , apparently work.

the simplified code ended this:

var disconnectedonce: integer;  procedure tform1.idtcpclient1disconnected(sender: tobject); begin  if buttoniniciar.text = 'stop'     begin        try           idtcpclient1.connect;        except           if disconnectedonce = 0           begin             disconnectedonce := 1; // try 1 more time connect, in case connecttimeout must set half desired              application.processmessages;             idtcpclient1.ondisconnected(idtcpclient1);           end else           begin              buttoniniciar.text = 'start';           end;        end;     end; end;

the bad or unsafe on idea?


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