Is there a way to prevent "positive" slippage (And not just negative)?
Example: I try to buy EURUSD at 1.12, so even if the ask price go down below 1.12(Which is normally an advantage), the order will be rejected.

And another slippage question: Say I want max 0.00001 slippage when attempting a buy of EURUSD, what should I enter inside the engine.submitOrder in the slippage place(1, 0.1 or maybe 0.00001?)

Thanks

Slippage is entered as number of ticks, hence, 1 should be passed. The value should always be positive regardless of the order type.

The answer is wrong.

The value of slippage means following:

if negative then default value of 5 pips is used
if Double.isNaN(slippage) == true then no slippage is used
otherwise, slippage is set in pips, you should pass 1, not 0.0001

You must enter 0.1 for max 0.00001 slippage.