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I recently stumbled across undocumented Delphi directives that were used to set the PE OS headers.
They are as follows:
The usage for these directives are as follows:
{$SETPEOSVERSION major.minor} {$SETPESUBSYSVERSION major.minor}{$SETPEUSERVERSION major.minor}
These compiler directives were probably introduced at the same time that the command line compiler introduced these, which was probably in Delphi 2010.
This article discusses the new Delphi 8 property access specifiers.
Continued discussion of undocumented Delphi 8 Property Access Specifiers, and other ways of adding and removing delegates / events handlers, including clearing the list of all the delegates / event handlers.