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Introduction to TValue

Rob's Technology Corner – TValue is a new record structure defined in Rtti.pas, it provides the ability to store the value, and type information of an instance of any type. This can be seen in the following code.For example, in the following program, you can see that the TypeInfo property ona TValue is the same as the what the TypeInfo() function would return for that type. program Project10;{$APPTYPE CONSOLE}uses SysUtils, Rtti;var v : TValue; i : Integer;begin i := 10; v := I; Writeln('Address of TypeInfo on TValue :', IntToStr(Integer(v.TypeInfo))); Writeln('Address of TypeInfo on Integer:', ...
Favorite? Off-Topic? Robert Love @ 2009-09-15 02:02

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