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Function IsWin64

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Detect OS bitness.







Code (Delphi)

function IsWin64: Boolean;


Return value

True if current computer is running under 64-bit Windows, False otherwise.



This function will return True for Windows XP 64-bit, Windows Vista 64-bit, Windows 7 64-bit, their server equivalents or any later 64-bit systems.



The result of this function doesn't depend on bitness of calling application.


See also

Send feedback... Build date: 2023-05-05
Last edited: 2023-05-05
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