Solved

Unit 1 referencing Units2's component properties..

Posted on 2001-06-15
10
194 Views
Last Modified: 2010-04-06

OK..

Example.
I have 2 units in a project. (Dll)

Unit 1 is my main form.
Unit 2 is a small popup window.

From the code in unit1 I wish to display the form from unit2 and have access and the ability to controll the components and there property's from the unit2 form..

(If that makes sense)


Points will be increased for examples..

Thanks Madmarlin..

0
Comment
Question by:Madmarlin
  • 6
  • 4
10 Comments
 
LVL 13

Expert Comment

by:Epsylon
ID: 6194410
Put 'uses Unit2' in the uses clause of Unit1.

Then in Unit1 you can do:

Form2.Visible := true;
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6194417
I see it a Dll. In that case Unit1 will look something like this:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Unit2;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
    Form2: TForm2;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
begin
  Form2 := TForm2.Create(Self);
  Form2.Visible := true;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Form2.Release;
end;

end.
0
 
LVL 1

Author Comment

by:Madmarlin
ID: 6194433

The comments posted would work but I gain an access violation when I try to alter the position property of a progress bar that sat on the Form from Unit2 from within the code in Unit1.

0
Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

 
LVL 13

Expert Comment

by:Epsylon
ID: 6194451
Are you modifying the progress bar while Form2 is active? You can not modify anything on a form that has not been created first.

This should work after creating Form2:

  Form2.ProgressBar1.Position := 24;
0
 
LVL 1

Author Comment

by:Madmarlin
ID: 6194522

I have managed to fond away around this..
By passing my fucntion the correct sender I can create and controll the form and its components..
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6194550
??????????????????????????????????????????

I am wasting my time!!!!!!!!
0
 
LVL 1

Author Comment

by:Madmarlin
ID: 6194597
your replys didn;t work for my scenario, probably due to a vaige description of the problem.

Sorry.
I appreciate your efforts but I a coleague came up with the answer and working example.
0
 
LVL 13

Accepted Solution

by:
Epsylon earned 50 total points
ID: 6194609
Go away!
0
 
LVL 1

Author Comment

by:Madmarlin
ID: 6194651
Here have you points you miserable twat.

Thanks for the time..
0
 
LVL 13

Expert Comment

by:Epsylon
ID: 6194666
(Edited by Computer101) off
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

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

Suggested Solutions

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

786 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