The first thought I have is a singe or series of COM/ACTIVE-X objects that
read values (from a DB or a file).
The other thought would be to give the application the ability to run as a
type of "SERVER" on a a specific port and having an active x control (prob.
a dll) sending data requests to the
That is what I expect for that case.
Try this - Close the form after creating the components. ie press button 1, then close
the form.
You are correct, it you free them then you will get the notifications.
The problem only arises when the Form (the components owners) does the destroy/free
instea
Hmmm. Well, I knocked together a sample form to test things:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
Dialogs,
StdCtrls;
type
TMyComponent = class(TComponent)
protected
procedure Notification(AComponent: TComponent; Operation:
I am looking at adding some web functionality to a Delphi application, so
the application can be 'used' via an intranet, and am wondering where to
start.
The application is used for monitoring hardware and what we want to do is
allow an operator to navigate around the application and view data v
That's the whole POINT it DOES NOT WORK. Have now spent several hours tracing through
the source code using the Debugger to check what was occurring - I did not believe
this was the problem initially.
I only found it during testing of Creation Order of Components and having Contructors
throw
If you want a component (TMyComponent) to be notified about another
component being freed, eg. when one of its sub-components
(TMySubComponent) is removed, call
TMySubComponent.FreeNotification(TMyComponent) at some point, usually
during TMySubComponent's construction. Then TMyComponent gets an
O
still can, using perf mon api's (?) but it's not pretty - a recent
(2-3months) vb mag (tsk tsk) had an article on doing this (it was a
taskmanager type app), but it also discussed how to setup objects to be
managed under perfmon - let me know if requried, as I can relocate the
actual article if re
Also on Project Jedi:
http://www.delphi-jedi.org/DelphiGraphics/jedi-index.htm
> -Original Message-
> From: Colin Fraser [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, July 06, 1999 11:18 AM
> To: Multiple recipients of list delphi
> Subject: [DUG]: Open GL question
>
> Hi all,
>
>
I presume you have seen the homepage on OpenGL and Delphi?
http://www.geocities.com/SiliconValley/Way/2132/tutorial.html
> -Original Message-
> From: Colin Fraser [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, July 06, 1999 11:18 AM
> To: Multiple recipients of list delphi
> Subject:
Yes I am sure the standard version of C++ builder is about $200, and should
be more than adequate.
The best solution which appears to me is to build a VCL component in C++.
Can Delphi import VCL components that are compiled in C++? It certainly is
possible the other way.
> -Original Message-
What's your understanding of the Delphi Notification mechanism??
My understanding is that if a TComponent or its descendant is removed from a Form then
all other components on the Form will be sent a Notification ( MyComponent, OpRemove)
- of course its owner is the form - this all stuff in th
You should be able to pick up a C compiler pretty cheap this days (GNU
C++ is free after all).
Its quite useful to have something like C++ Builder (even just for the
resource workshop), or even VC++ lying around for those awkward moments
when all the sample source you can find is C++.
Grant Bl
Hi all,
I am just playing round (a little) with open GL.
One thing that I can't find out how to do is to get a 2D co-ordinate (in
pixels of the window client area) of a point in 3D space.
I want to know this so that I can tell when an object flies off my window.
Anyone have any ideas or pointer
lblNewLabel.Parent := bndDetail; ?
Wes Edwards
Quality Assurance Manager
CommSoft Group Limited
[EMAIL PROTECTED]
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Tony Sinclair
> Sent: Tuesday, 6 July 1999 10:55
> To: Multiple recipients of l
Back again,
I am wondering as to how I get a label that I create at run -time to
display itself on a QuickReport band? So far I have...
//lblNewLabel := TQRLabel.CreateParented(bndDetail.Handle);
lblNewLabel := TQRLabel.Create(bndDetail);
lblNewLabel.Left := 20;
lblNewLab
--On Tuesday, July 06, 1999, 8:27 AM +1200 Jeremy Coulter <[EMAIL PROTECTED]>
wrote:
> By that I mean HOW it works, i.e. how you can set data with it, i.e.
> fieldbyname('name').asstring:='joe'; AND you can get data from it, i.e.
> fieldbyname('Name').asstring.
> So how do you create a property w
Acht so. That is what I was wondering; if I could do without the C compiler
which I dont have and the project doesnt justify further purchases. I need
to be able to do several changes to the C source and check it as I go along
against the hardware, so I need to have a handle on it at all times.
Ma
AH ok, I kinda thought that WAS the case, but was a little unsure.
Thanks,
Jeremy Coulter
Application Developer
Application Development Centre
Compaq Computer New Zealand Ltd.
Phone: 64 3 371 5724 (DD)
Fax:64 3 371 5744
Cell:021 2150435
E-mail:
The TDataset keeps an array of TFields. The fieldbyName does a linear search of this
array for a field of the specified name.
FieldByName returns a TField. If you look at TField - AsString etc is a property with
read and write methods.
To get the correct behaviour for each of the different fie
HI all.
I was wondering if anyone could explain how FieldByName works.
By that I mean HOW it works, i.e. how you can set data with it, i.e.
fieldbyname('name').asstring:='joe'; AND you can get data from it, i.e.
fieldbyname('Name').asstring.
So how do you create a property with this type of func
> I like the JUST wrap it up - never having done that before.
> So if what you are saying is as I read it - I know where the
> problems in the C code are occuring and having done a bit of C in my
time I
> could sort it out. Now with this altered C source, can I JUST create a
DLL
> from it which
Thanks Max.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Max Renshaw-Fox
Sent: Monday, July 05, 1999 7:48 PM
To: Multiple recipients of list Delphi
Subject: RE: [DUG]: RichEdit Controls
Can't seem to find it - sorry.
It was for a contract I did on
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