Re: Compilation error on event OnPrintComponent of TRVPrint

Author

Message

Sergey Tkachenko

Posted: 10/15/2003 19:39:12

Since version 1.6, a type of the first parameter of this event is changed

(from TRVPrint to TCustomRVPrint).

In your project you need to change all declarations of this event where this

event is used.

It's not necessary to reassign the event, you can simply edit the code

yourself (change Sender: TRVPrint to Sender: TCustomRVPrint).

As for this error message. May be Delphi still tries to compile your project

with the old version of TRichView (even though the new version is

installed): the new version generates "Sender: TCustomRVPrint", the old

version expects "Sender: TRVPrint".

Search your hard drive for files of the old version and delete them (or move

from the paths where Delphi searches for units)

> I had yesterday downloaded the new version 1.7.30. And after

> upgrade from version 1.5 I got one problem with the TRVPrint

> component. The syntax of the PrintComponent was cahnged. I had

> reassigned new event handler and now have compilation error:

> "Declaration of 'RVPrint1PrintComponent' differs from previous

declaration"

> The error occurs also with empty implementartion of the handler

> (please see below).

> Could you please help me?

> Declaration in my class (auto generated):

> -----------------------------------------

> procedure RVPrint1PrintComponent(Sender: TCustomRVPrint;

> PrintMe: TControl; var ComponentImage: TBitmap);

> Empty implementation:

> ---------------------

> procedure TFormPrintPreview.RVPrint1PrintComponent(Sender: TCustomRVPrint;

> PrintMe: TControl; var ComponentImage: TBitmap);

> begin

> //

> end;