Solved

Giving components events code so they can run dynamically

Posted on 2003-10-21
1
143 Views
Last Modified: 2010-04-03
I have just started designing components, that i want the user to create dynamically, however i can not work out how to give them specific code in their events, eg. so that the ContextPopup will display a message
0
Comment
Question by:KiwiGraeme
[X]
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
1 Comment
 
LVL 3

Accepted Solution

by:
philly_tee earned 250 total points
ID: 9596245
Hi,

I am not exactly sure what you are asking - You want the user to create the component in code and then place code on the Context Popup event that will display a message, as well as having the user able to use the event?

If this is so you can override the contextpopup event, adding your code before the user's event handler is called:

{*************}

unit Memo1;

interface

uses
  SysUtils, Classes, Controls, StdCtrls, types, dialogs;

type
  TMemo1 = class(TMemo)
  private
    { Private declarations }
    FOnContextPopup : TContextPopupEvent;
  protected
    { Protected declarations }
 public
    { Public declarations }
  procedure DoContextPopup(MousePos: TPoint; var Handled: Boolean); override;
  published
    { Published declarations }

  end;

procedure Register;

implementation

procedure Register;
begin
  RegisterComponents('Samples', [TMemo1]);
end;

{ TMemo1 }

procedure TMemo1.DoContextPopup(MousePos: TPoint; var Handled: Boolean);
begin
    ShowMessage('Hello');
      if Assigned(FOnContextPopup) then FOnContextPopup(Self, MousePos, Handled);

end;

end.

{**********}

HTH,

Philip
0

Featured Post

Ready to get started with anonymous questions?

It's easy! Check out this step-by-step guide for asking an anonymous question on Experts Exchange.

Question has a verified solution.

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

Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
Suggested Courses
Course of the Month3 days, 18 hours left to enroll

630 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