How to add a tabsheet from a DLL to a pagecontrol on my current form

Posted on 2005-03-16
Medium Priority
Last Modified: 2010-04-05
I have a page control on my main form and i want to add to it differents tabsheets loading them from differents DLLs.
I have created forms with a pagecontrol each of them an add it to a DLL.
Then from my main form i load the dll and get access to the form but when i try to add the tabsheet to my pagecontrol i get the error "cannot assign a tfont to tfont"
Question by:tito_rguez2003
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Accepted Solution

jpedef earned 252 total points
ID: 13562490
You need to syncronize your main application and dll. Try passing Application.Handle to dll when initialising it.
Then in dll do:
  Application.Handle := MainAppHandle;
LVL 12

Assisted Solution

andrewjb earned 248 total points
ID: 13563485
You may or may not also need to try playing with the following:

(Some hints and ideas, though it's not a solution yet!)

- Whether you use runtime packages or not. (I think both the main app. and dll should be 'Yes')

- Whether you use dynamic RTL or not ( Again, 'yes' for both, I think)

- If you try to export stuff from a dll, you need to use the PACKAGE flag rather than dllimport/dllexport. (At least you do in C++ builder. I'm not sure whether this is identical under Delphi. And it probably doesn't apply here because you're not exporting a class, but I thought I'd mention it for completeness.)

Featured Post

Enroll in August's Course of the Month

August's CompTIA IT Fundamentals course includes 19 hours of basic computer principle modules and prepares you for the certification exam. It's free for Premium Members, Team Accounts, and Qualified Experts!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
Suggested Courses
Course of the Month14 days, 14 hours left to enroll

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question