Jump to content

David Hoyle

Members
 View Profile  See their activity

  • Content Count

    184

  • Joined

  • Last visited

  • Days Won

    2

Posts posted by David Hoyle

  4. Posted

    I can't find a way of saving or pinning threads like this so have replied instead as this is a goldmine of information.

    I'm half way through my 3 years on the old way of doing things and that was a nightmare to get the right files in the first place and setup so I was not looking forward to having to change to a token.

    I think this thread and @Vincent Parrett's blog post could well help everyone.

    regards

    Dave.

  7. Posted

    I can confirm that class variables and properties are not accessible in RS 11.2... 

    Program ClassProppertyRTTI;

{$APPTYPE CONSOLE}

{$R *.res}


Uses
  System.SysUtils,
  System.Rtti;

Type
  TMyClass = Class
  Strict Private
    FGoodbye: Integer;
  Strict Private
    Class Var FHello: String;
  Strict Protected
  Public
    Class Property Hello: String Read FHello;
    Property Goodbye : Integer Read FGoodbye;
  End;

Var
  C: TMyClass;
  Ctx: TRTTIContext;
  F : TRTTIField;
  T: TRttiType;
  P: TRttiProperty;

Begin
  Try
    C := TMyClass.Create;
    Try
      Ctx := TRTTIContext.Create();
      T := Ctx.GetType(C.ClassInfo);
      For F IN T.GetFields Do
        WriteLn('Field: ', F.Name);
      For P In T.GetProperties Do
        WriteLn('Property: ', P.Name);
    Finally
      C.Free;
    End;
    ReadLn;
  Except
    On E: Exception Do
      WriteLn(E.ClassName, ': ', E.Message);
  End;

End.

    It only outputs FGoodbye and Goodbye.

    I didn't actually know this restriction in the RTTI.

    • Thanks 1

  13. Posted

    Have you tried debugging the component package using a second IDE to see where the AV is being raised - hopefully it will show you a call stack that might help you isolate the issue.

    Does an empty package with no component registration cause an AV?

    In your component code, do you utilise any INITAILIZATION/FINALIZATION sections in your units to create or destroy objects?

  20. Posted

    Loading order of DLL and thus initialization order... Yes I have experimented as I use the "feature" to order my experts as sometimes they don't play well together. Changing their order can help.

    I do not understand what you mean by "execution order"?

     

×