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Found 2 results

  1. Hello Need technical support with math in AutoIt. Result code below should be 0. but is 2.8421709430404e-014 $a = 3.99 - 3 ConsoleWrite(VarGetType($a) & ": " & $a & @CRLF) $a *= 100 ConsoleWrite(VarGetType($a) & ": " & $a & @CRLF) $a -= 99 ConsoleWrite(VarGetType($a) & ": " & $a & @CRLF)
  2. Hi, I wondered why negative integers I wrote into registry (e.g. negative x-coordinates of a gui if using two monitors and the right one is the main one) wouldn't return right when reading. Now I know: it is saved as an unsigned integer (without algebraic sign). So here is a snippet that is changing unsigned to signed integer: Global Const $g_sRegKey = "HKEY_CURRENT_USER\Software\" & @ScriptName ; path to registry RegWrite($g_sRegKey, "Value", "REG_DWORD", -2147483647) ; write some negative integer into registry; -2147483647 highest possible negative integer , 2147483648 highest possible positive integer if talking of 32bit Local $sValue = RegRead($g_sRegKey, "Value") ; read out registry ConsoleWrite("Value: " & $sValue & @CRLF) ; show real value in console Local $sResult = _SignedInteger($sValue) ; change to signed value ConsoleWrite("Result: " & $sResult & @CRLF) ; and show it in console Func _SignedInteger($iUnsignedInteger) Local $iSignedInteger If $iUnsignedInteger > (2^31) Then ; then it means a negative integer $iSignedInteger = $iUnsignedInteger - (2^32) Else $iSignedInteger = $iUnsignedInteger EndIf Return $iSignedInteger EndFunc It took me some time to find out the problem and so I hope I can help somebody with this. Regards, Conrad
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