Archive for the ‘Delphi 2010’ Category
Posted by jpluimers on 2019/02/27
There are six variations; only one can be active at a time:
Delphi Office 2000 Servers Package
Delphi Office XP Servers Package
Delphi Office 2010 Servers Package
C++Builder Office 2000 Servers Package
C++Builder Office XP Servers Package
C++Builder Office 2010 Servers Package
via: I cannot get MS Office sample automation server wrapper components. Neither of… [WayBack ]
More in depth article explaining all the nitty gritty details: There Can Only Be One! Handling Different Versions of Design Packages inside the IDE | The Art of Delphi Programming [WayBack ]
–jeroen
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Posted by jpluimers on 2018/09/04
Just found some notes from 2013 for my research list that are still relevant:
Note that if you are using Smart Pointers, use the ones that Spring4D implemented in 2015 named Shared/IShared<T>/TShared<T>, see [WayBack ] Spring4D – Pascal Today and [WayBack2 ] Smart Pointers will be in Spring4D 1.2 .
–jeroen
Posted in Delphi , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2018/07/11
When accessing the VCL from multiple threads at the same time: adopted from …\DEMOS\THREADS\THRDDEMO.DPR
Great question a while ago:
[WayBack ] “Don’t access VCL from a background thread” – how to demo that? – Primož Gabrijelčič – Google+
For me, the ultimate way why not to access the VCL from a background thread is the precursor of the official threads demo that ships from Delphi 2 to Delphi XE6 in ...DEMOS\THREADS\THRDDEMO.DPR...DEMOS\THREADS\ThSort.pas ...DEMOS\THREADS\SortThds.pas
The first public showing of that demo did not include main thread protection. It originates from a session at the the 1995 Borland Developers Conference where Ray Konopka showed the below code from Bob Ainsbury.
That session reminded why this joke [WayBack ] Via the EKON20 sessions… – Jeroen Wiert Pluimers – Google+ was so funny: “When Ray Konopka enters the room you have a Raize condition. “.
The question above also made me find back this reference to BorCon95 in San Diego:
Read the rest of this entry »
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Posted by jpluimers on 2018/07/05
While updating some old code fiddling with the[WayBack ] GetThreadId function , I wanted to have some TThread wrapper around it. I had totally forgotten there has been already a means for this since Delphi 2009 (which initially had a bug , but that was worked around at first and fixed later ): [WayBack ] CurrentThread .
The latest version of Delphi, Delphi 2009, has a CurrentThread class property on the TThread class.
This will return the proper Delphi thread object if it’s a native thread. If the thread is an “alien” thread, i.e. created using some other mechanism or on a callback from a third party thread, then it will create a wrapper thread around the thread handle.
20081001 at 5:00 – [WayBack ] Barry Kelly
Sources
–jeroen
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Posted by jpluimers on 2018/04/24
Posted in Delphi , Delphi 10 Seattle , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | 1 Comment »
Posted by jpluimers on 2018/04/24
Thomas Pfister came with a nice solution to this question:
[WayBack ] Does anyone know how to embed a superscript Registered symbol in a Rave memo buffer? – Phillip Woon – Google+
Since Google has such bad indexing of G+, here is the solution:
procedure TForm4.RvSystem1Print(Sender: TObject);
const
SuperscriptOn = RPTFPrefix + RPTFSuperscript + RPTFOn + RPTFSuffix; // from RpDefine.pas
SuperscriptOff = RPTFPrefix + RPTFSuperscript + RPTFOff + RPTFSuffix;
var
MemoBuf: TMemoBuf;
begin
MemoBuf := TMemoBuf.Create;
try
MemoBuf.Text := 'Test' + SuperscriptOn + '®' + SuperscriptOff + ' Test';
MemoBuf.PrintStart := 0.5;
MemoBuf.PrintEnd := 8.0;
with Sender as TBaseReport do begin
PrintMemo(MemoBuf, 1, true);
end;
finally
FreeAndNil(MemoBuf);
end;
end;
–jeroen
Source: Does anyone know how to embed a superscript Registered symbol in a Rave memo …
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Posted by jpluimers on 2018/04/18
Reminder to self that I one day need to write more about this enumerator:
[WayBack ] jeroenp / BeSharp.net / source / Native / Delphi / Library / Data / DataSetEnumeratorUnit.pas — Bitbucket
It’s not nearly as good as the one by Uwe Raabe, but I didn’t really update this code for about a decade as it has functioned well for me in the current state: in 2009 it was like [WayBack ] bo library – Source Code .
Code by Uwe is at [WayBack ] Dataset Enumerator Reloaded | The Art of Delphi Programming via [WayBack ] Refurbishing old code: http://www.uweraabe.de/Blog/2017/02/09/dataset-enumerator-reloaded/ – Uwe Raabe – Google+
A couple of years ago I wrote a two-part article about a dataset enumerator: A Magical Gathering – Part 1 and Part 2 . Well, things evolved a bit since then and I wondered how one would implement something similar given the current features of Delphi. Actually I am following here a suggestion from commenter Alan Clark.
So for now it’s just to document that my enumerator is there and that it works as intended.
I referenced an older version at [WayBack ] For-in Enumeration – ADUG as I used it at Spoken @ CodeRage III, December 1-5, 2008 on Delphi, database and XML related topics and Source: Conferences/2009/DelphiLive.2009/Smarter-code-with-databases-and-data-aware-controls .
A small video on how you use it is here:
VIDEO
It was back when Better Office and CodeGear still existed and we celebrated (late ) Gwan Tan’s 50th birthday.
O the days (:
More history:
–jeroen
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Posted by jpluimers on 2018/04/12
[WayBack ] I want to annotate some of my enumerated types with human facing names. So I want to write: type[Names(‘Explicit time domain’, ‘Implicit time domain’,… – David Heffernan – Google+
This does not work:
constructor Create(const Values: array of string);
It seems to be in QC.
The reason is not obvious until you realise (thanks Stefan for wording that) that attribute constructor arguments are limited to anything that can be const. Open arrays nor dynamic arrays can be const (yes, nowadays you can have “consts” that are dynamic arrays but in fact they are compiler protected variables).
An alternative you might think works, but fails us using one attribute per enumeration element. But that’s where Delphi RTTI leaves you in the dark: it does not expose the RTTI for enumeration elements (likely doesn’t even generate it), only the the enumeration type itself.
So this fails:
type
NameAttribute = class( TCustomAttribute )
private
FName: String;
public
constructor Create( AName : String );
property Name: String read FName;
end;
TMyEnumeration = (
[Name('One')]
meOne,
[Name('Two')]
meTwo
);
–jeroen
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Posted by jpluimers on 2018/04/05
For a very long time I’ve discouraged people from using non-ASCII characters in identifiers. It still holds.
In the past, transliterations messed things up. Even with increased support for Unicode, tools still screw non-ASCII characters up.
Delphi is not alone in this (the most important one is the DFM view as text support), see this report: [RSP-16767] Viewing a form as text fails with non ascii control or event names – Embarcadero Technologies (you need an account for this, but the report is visible for anyone):
Viewing a form as text fails with non ascii control or event names Comment
Steps:
create a new VCL forms application
drop a label onto the form
change the name of that label to lblÜberfall (note the U-umlaut )
switch to view as text
exp: DFM content shown as text
act: first line is shown incorrectly (see screenhsot)
–jeroen
Source: [RSP-16767] Viewing a form as text fails with non ascii control or event names – Embarcadero Technologies
via: [WayBack ] Code of the day – – Thomas Mueller (dummzeuch) – Google+ :
function TNameGenerator.StrasseToStrasse(const _Strasse: string): string;
…
Strasse := StrasseToStrasse(_Strasse);
Read the rest of this entry »
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Posted by jpluimers on 2018/04/05
Posted in Delphi , Delphi 10 Seattle , Delphi 10.1 Berlin (BigBen) , Delphi 2005 , Delphi 2006 , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi 6 , Delphi 7 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 