If I have this type:
Type tMyRec = Record X, Y: Integer; End;

and can do this:

Const ARec : tMyRec = (X:12; Y:25);

why can't I do this?

var
  AnotherRec: tMyRec;
begin
  AnotherRec := (X:12; Y:25);
end.

** Feel free to smack me around.

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It's just the way the language is... you could do this...

AnotherRec.X := 12;
AnotherRec.Y := 25;

or this, if i'm not mistaken...

with AnotherRec do begin
	X := 12;
	Y := 25;
end;

with metta,
Shawn Tan.
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Here is why I was wondering why you couldn't, say I have this type:
Type tMyRec = Record X, Y : Real; End;

And I have this function:

Function CheckPoint(aPoint: tMyRec): Boolean;
Begin
  {Does something here..}
end;
begin
  CheckPoint((X:1.2;Y:2.2));
end.

In short I think it would be a nifty feature.. but hey.. I was just wondering.

Since Free Pascal supports function overloading,
you could do something like this:

Function CheckPoint(X, Y:real): Boolean;
Begin
  {Does something here..}
end;
Function CheckPoint(aPoint: tMyRec): Boolean;
Begin
  Result:=CheckPoint(aPoint.X, aPoint.Y);
end;
// So you can use it either way:
var
  MyRec:tMyRec;
begin
  if CheckPoint(MyRec) then {do stuff};
  if CheckPoint(1.2, 2.2) then {do more stuff};
end;

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^_^ Thats how its working at the moment and I've known that FPC doesn't do that kinda definition on the fly. My real question was why not?

You can also define a function that returns the record you need:

function NewMyRec( X, Y : double ) : TMyRec;
begin
   NewMyRec.x := X;
   NewMyRec.y := Y;
end;

I think it's really better than declare a new variable and initialize it by the code.

if CheckPoint(NewMyRec(1.2, 2.2)) then ...

Be well...

^_^ Thats how its working at the moment and I've known that FPC doesn't do that kinda definition on the fly. My real question was why not?

Because Pascal is not a dynamically typed language. C/C++ doesn't do this kind of thing either. Not 'on the fly' without any basic types defined.

Matt