as you know in delphi you can easily change component to string or string to component which is the heart of dfm files. i want to make some things with free pascal , but i cant do it. Please can you tell me why and how it should be..thanks

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I didn't reference it anywhere other than Delphi's help file.

Hi!
Thanks for the reply! Where did you reference this? Could you tell me what book to buy.
Thanks again,
James

Hi All,
Is there any online information on the Classes used with Delphi? Any books? Like for THeader in ExtCtrls. This is what I have for now in extctrls.pp.

uses Messages;
  THeader = class(TCustomControl)
  private
           procedure FreeSection;
           function  GetWith(X: Integer): integer;
           procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: integer); override;
           procedure MouseMove(Shift: TShiftState; X, Y: integer); override;
           procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: integer); override;
           procedure SetBorderStyle(Value: TBorderStyle);
           procedure SetSection(Strings: TStrings);
           procedure SetWidth(X: Integer; Value: Integer);
           procedure WMNCHitTest(var Msg: TWMNCHitTest); message WM_NCHITTEST;
           procedure WMSetCursor(var Msg: TWMSetCursor); message WM_SETCURSOR;
  protected
           procedure CreateParams(var Params: TCreateParams); override;
           procedure Paint; override;
//           procedure Sized(ASection, AWidth; Integer); ???;
//           procedure Sizing(ASection, AWidth; Integer); ???;
  public
           constructor Create(AOwner: TComponent); override;
           destructor Destroy; override;
  published
           property Align;
//           property AllowResize; Boolean read ???? write ??? default ???;
//           property BorderStyle; TBorderStyle read ??? write ??? default ???;
  end;

I have not written the THeader.inc for these functions in this class yet. I would like to have more information on what some of these procedures do, other than just guess or write stubs!

Thanks,
James

The FCL provides very similar functions for component streaming as Delphis VCL. An example how to stream a TForm to a text file (.lfm/.dfm) can be found in main.pp function CreateLFM. Creating a component from a text works just the other way. Convert the text to a binary stream and use a TReader.

Don't know if there is a doc about this topic.

Mattias

Hi,
Okay! I found the help files from Borland. Not to bad! Thanks,
James

I usually just look at Delphi's code and determine what they are doing and why.

In this case, I see that Delphi 6 has support for THeader for backward compatibility only and suggests you use THeaderControl. Maybe you should convert that class instead.

Shane