Require a conversion from MQL5 to MQL4 for EA

Hey there,

I've coded an EA a while back in MQL5 for the MT5 platform and it works perfectly for my needs. However, I tried to import it into MQL4 to use it in MT4 and there are way too many differences in the language and functions for me to debug without getting frustrated, so I need someone with a very good knowledge of the differences between MT5 and MT4 to translate my existing MT5 MQL5 EA into MT4 MQL4. No functional changes to the EA are needed. There's just some types, functions, calls etc that MQL4 doesn't recognise due to being an older code-base I expect.

I'm hoping that this won't take someone too long, but I'll need the finished code to be provided as the output (ie. the .mq4 output as well as the .ex4).

The EA itself is pretty simple -- it scans for open pending limit orders and if it finds one it monitors it and will delete the order when price reaches the current TP value for that order. That's it. The code is 260 lines long including a bunch of comments.

Cheers!

Scott