Отличия HWND и THandle

[Alex Cones]

По сути я понимаю, что ничем не отличаются. А в теории?

[Stilet]

А в теории это разные типы.
HWND определен как LongWord
А THandle как System.THandle
И хоть у них одна база для HWND четко указано что тип этот самостоятельный, и с THandle не связан. Это Борланд разделил, правда я не знаю для чего.

[Alex Cones]

А THandle как System.THandle

THandle = DWord
DWord = LongWord

[Stilet]

И что?

HWND = type LongWord;

Видишь? Четко указано:

A type declaration specifies an identifier that denotes a type. The syntax for a type declaration is

type newTypeName = type

where newTypeName is a valid identifier. For example, given the type declaration

type TMyString = string;

you can make the variable declaration

var S: TMyString;

A type identifier’s scope doesn’t include the type declaration itself (except for pointer types). So you cannot, for example, define a record type that uses itself recursively.
When you declare a type that is identical to an existing type, the compiler treats the new type identifier as an alias for the old one. Thus, given the declarations

type TValue = Real;

var
X: Real;
Y: TValue;

X and Y are of the same type; at runtime, there is no way to distinguish TValue from Real. This is usually of little consequence, but if your purpose in defining a new type is to utilize runtime type information—for example, to associate a property editor with properties of a particular type—the distinction between “different name” and “different type” becomes important. In this case, use the syntax

type newTypeName = type type

For example,

type TValue = type Real;

forces the compiler to create a new, distinct type called TValue.

[Alex Cones]

Скажите это моему лазарусу:

HWINSTA = HANDLE;
     HWND = HANDLE;
     HTASK = HANDLE;
...
HANDLE = System.THandle;

[Stilet]

Пасибо, не хочу )
Мне моя Д6 Устраивает )))