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Difference between !OrderCalcMargin and OrderCalcMargin

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amkey
18
amkey 2013.01.20 12:12 

Can anyone tell me what is the difference between !OrderCalcMargin and OrderCalcMargin? What is the purpose of the exclamation market infront?

Cheers 

Documentation on MQL5: Trade Functions / OrderCalcMargin
Documentation on MQL5: Trade Functions / OrderCalcMargin
  • www.mql5.com
Trade Functions / OrderCalcMargin - Documentation on MQL5
phi nuts
2184
phi nuts 2013.01.20 13:44  
amkey:

Can anyone tell me what is the difference between !OrderCalcMargin and OrderCalcMargin? What is the purpose of the exclamation market infront?

Cheers 

The exclamation marker is a logical negation NOT for boolean operation (click that). In simple word, the exclamation marker mean boolean false.

bool Global_Warming == true;

if (! Global_Warming ) //--- read : if Global_Warming equal false ==>> if (Global_Warming == false)
   {
   Print ("Global warming is not true");
   }

So question to you, " What is the return type of OrderCalcMargin

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