Compiler directive WIN32

Where does this directive come from? I see it used in several Delphi-programs but can't figure out where it is set. The help-system stays silent about this directive.
detempelAsked:
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erajojConnect With a Mentor Commented:
Hi,
Look in the help file for "Conditional symbols".

Delphi defines the following standard conditional symbols:

VER100      Always defined, indicating that this is version 10.0 of the Object Pascal compiler. Each version has corresponding predefined symbols; for example, version 10.1 would have VER101 defined, version 10.5 would have VER105 defined, and so on.

WIN32      Indicates that the operating environment is the Win32 API.

CPU386      Indicates that the CPU is an Intel 386 or better.

CONSOLE      Defined if an application is being compiled as a console application.

I.e. the Delphi compiler sets the WIN32 compiler directive when compiling a Win32 program automatically.

/// John
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