How could I get a value for an extend trend with specified point

 
hello everyone,
if I have been draw a pitchfork and I want to get the value for the extend mid trend with a specified point to start draw another trend or 2nd pitchfork, how could I code that?
for example: this point will be at 00:00 time as shown in the pic.
i tried ObjectGet( "Pitchfork", OBJPROP_PRICE1) and iTime(NULL,PERIOD_D1,dshift) but i got nothing, what is the code need to solve this problem?
thnx.
Reason: