Stop Limit orders

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Is there a way to construct a stop limit order. I want to buy on a stop using a pending order but limit the price I will pay in case of a spike. I thought of using slippage but since with a OP_BUY I am issuing a market order I will pay whatever the Ask price is with no limit (or so it seems).

Any help will be greatly appreciated.

[Matt]

Believe you could write it so when target price is hit (like a stop) you could open a pending limit order. So, if you set the 'stop' at 1.8000 and when that is hit, you place a limit buy at 1.8010, then you should get a fill at the market price. If the market spikes past to 1.8020, and you miss the fill, and you'll have a normal limit buy below the market.

I still think that the slippage does this for you. The stop does open as a market order, but a slippage value puts a sort of limit on things so it won't trade further away from your order and you'll just miss your fill.

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ququr wrote:
Believe you could write it so when target price is hit (like a stop) you could open a pending limit order. So, if you set the 'stop' at 1.8000 and when that is hit, you place a limit buy at 1.8010, then you should get a fill at the market price. If the market spikes past to 1.8020, and you miss the fill, and you'll have a normal limit buy below the market.

I still think that the slippage does this for you. The stop does open as a market order, but a slippage value puts a sort of limit on things so it won't trade further away from your order and you'll just miss your fill.

Thanks for the idea, I am trying to test the various options but I am new to MQL4 and it is taking some time.  What you describe is termed Market if Touched in the futures world but depends on being able to place a limit order that close to the market (which is what causes the problem in the first place).  I am a very experienced programmer and have the syntax down pretty well (it is basicly C as far as I can tell) but I am still learning the functions and their nuances.