CodeProject Latest postings for Delphi

use the DLL of c#.net code in delphi

RashmitaS — Fri, 10 May 2013 19:01:00 GMT

I want to use the functions in my c# .net project without writing the logic again in Delphi5 project.

So I exposed this .NET assembly (DLL) as COM object using the regasm.exe tool and then I imported the tlb type library from Delphi5,but the component only have the class BUT without any method. the useless class.

What am I missing?
Any help will be highly appreciated.

how to wifi, wirless programming?

rahmat_20 — Mon, 08 Apr 2013 10:18:00 GMT

how can i connect/disconnect my wifi with delphi programming?
how can i connect/disconnect other wirless networks with delphi programming?
help me, please

Just wondering

Jose A Pascoa — Sat, 02 Feb 2013 09:08:00 GMT

What happened to past Delphi forum messages? Apparently deleted.
So, let's start again, don't leave this forum empty forever.

Please I Need Help For My Delphi Project

Muhammad Sa3id — Fri, 15 Jun 2012 15:54:00 GMT

Could Anyone Bring To Me URL To Download Drag And Drop Components Specially For Memo And To Bring Path For A File
Please...

COBRA

Please I Need Help For My Delphi Project

Muhammad Sa3id — Fri, 15 Jun 2012 15:52:00 GMT

Could Anyone Bring To Me URL To Download Drag And Drop Components Specially For Memo And To Bring Path For A File
Please...

Generating Label Barcode from inside of our project

Fred 34 — Sun, 20 May 2012 18:50:00 GMT

Is ther any component or OCX which we can use it to
generate and print a barcode?

New To Delphi - Want a Right Direction

Overloaded_Name — Mon, 07 May 2012 04:57:00 GMT

hello guys... I was planning to learn a little about Delphi. With a little research , I could just figure out that

- There is no Delphi Platform for Delphi Development similar to VC# 2010 Express Edition for C# Development.

There is this Embercadero RAD Studio but it is a 30-Day trial and after that, we have to buy it. So what's the starting point and which book (or any online tutorial) you would suggest. Thanks for any heading.

This world is going to explode due to international politics, SOON.

Delphi to C#

coert dorrepaal — Tue, 24 Apr 2012 11:52:00 GMT

function TAclasencode.BufToDataBIN(const Buf: TByteDynArray; iStartPos,
iLen, iDec: Integer): Variant;
const
DefaultLen = 8;
var
i : Integer;
iTmp : Int64;
arr : array[0..7]of Byte;
pInt64 : ^Int64;
fTmp : Double;
begin
fTmp := 0;
try
FillChar(arr,8,0);
if (Buf[iStartPos] and $80=$80) and (not IsCardinal) then
begin
if Negative then
begin
for I:=0 to iLen-2 do arr[I]:=(Buf[iStartPos+iLen-1-I] xor $FF);
pInt64:=@arr[0];
iTmp:=pInt64^+1;
end else
begin
for I:=0 to iLen-2 do arr[I]:=(Buf[iStartPos+iLen-1-I]);
pInt64:=@arr[0];
iTmp:=pInt64^;
end;
fTmp:=iTmp;
fTmp:=fTmp/Power(10,iDec);
fTmp:=0-fTmp;
end else
begin
for I:=0 to iLen-1 do arr[I]:=(Buf[iStartPos+iLen-1-I]);
pInt64:=@arr[0];
iTmp:=pInt64^;
fTmp:=iTmp;
fTmp:=fTmp/Power(10,iDec);
end;
finally
Result := fTmp;
end;
end;

comunication

harry88 2012 — Thu, 05 Apr 2012 11:29:00 GMT

how to communication seerial RS232 to USB

declaring math function

7007saeed — Fri, 30 Mar 2012 14:34:00 GMT

hi
as you know, to declare a custom math function, we can do:

function myfun(x:real):real;
begin
myfun=x*sin(x)+1;
end;

and it works perfectly. BUT if we want user declare his function during running app, how can we do it??
Thanks.

Delphi 2007 not compiling runtimes into exe

JerryMallett — Wed, 07 Mar 2012 09:34:00 GMT

Hi Guys,

I've not had this problem before but since I re-installed the OS on both my laptop and desktop
I've been unable to compile properly.

My laptop is running 32bit XP Pro and my desktop Win7 Pro. Delphi has been set up on both after a clean install of both OS's. I have used the default installation for Delphi 2007 on both systems and the same components have been installed on both.

Everything seems to compile ok and I have the "Build with runtime packages" ticked and have tried it unticked as well.

When I try to run my app on other PC's it keeps looking for various BPL files. it starts by looking for rtl100.bpl but when I move that into the systems path then it looks for another bpl and another etc..

They are supposed to be embedded into the app but no matter what I do it just won't happen.

Has anyone else experienced this? Could it be a registry problem?

Jerbear! A Delphi Dabbler!

Delphi online birthday party ?!

smags13 — Tue, 07 Feb 2012 18:54:00 GMT

Ha, this one seems interesting...

http://edn.embarcadero.com/article/42019[^]

Can TWebModule instance shutdown itself?

Corinna John — Tue, 31 Jan 2012 15:17:00 GMT

I have an ISAPI application with a TWebModule running on IIS6. There's try/except and fine exception logging around every method. Every single request and it's response status are also being logged. About five times a week this happens:

1) TWebModule.OnException is called with "EInOutError: File not found". Mostly the error is logged by just one thread, sometimes by up to four threads at once. (The cause must be outside my code, because there are no lines outside try/except blocks.)
2) For a few minutes IIS answers thousands of request with status 500, though they are not logged by the ISAPI DLL. That means, the requests don't cause more exceptions in the TWebModule instances, they seem to just bounce off my IIS.
3) Finally there's a message in the event log that one worker process did not recycle in time.
4) For a day or two, everything runs fine again.

I guess the TWebModule instance is in some kind of blocked state, but IIS still tries to feed it with requests. So, I want to stop the thread in TWebModule.OnException. Is there a way to shutdown a single TWebModule, that means one IIS thread or worker process, without recycling the whole Application Pool?

Thanks a lot,
Corinna

Let's make an impact (even if a small wave)

nortee — Fri, 27 Jan 2012 18:18:00 GMT

Hi again Delphi-freak type people like me ...

I would like to propose that we make a concerted effort to get some more Delphi articles posted here.

I am busy working on some (simple) gaming articles for Delphi and even more in-depth "hardcore" type Delphi articles that I want to post here.

I wanna keep the Delphi/Pascal flag flying as high as I can possibly get it to be. Hopefully we might even get a dedicated section for us, complete with a pascal parser for the site itsself!!!

Is anyone else with me on this endeavor?

Cheers,
Glen Vlotman
"You cannot code for stupidity"

Remote Desktop with Delphi 6

kasibhotlaKrishna — Fri, 02 Dec 2011 16:39:00 GMT

Hi

Can any one please help me on this issue?

i am trying to transfering a file TSclint to local machine in Windows 7 32bit OS, for that i am using WtsApi32.pas ,but the same thing is not happining in Windows 7 64bit OS

Are there still Delphi guys around here?

nortee — Wed, 23 Nov 2011 18:52:00 GMT

Hi,

I'd just like to ask: Are there still people on here that dabble and/or work with Delphi? I'm just asking because I am in the process of posting several articles and tips and tricks regarding Delphi and I'd just want to know that my efforts to help people would not be in vain.

I will still post the articles, don't get me wrong, I'd just prefer that the articles and stuff would be useful to the rest of the community.

Cheers,
Glen Vlotman
"You cannot code for stupidity"

F:=(50 div 3)

robertFFF — Mon, 10 Oct 2011 10:50:00 GMT

hello i'am new in write programs in delphi. my problem is how can i get 16,66 in a variable?

variable F:=(50 div 3) result must be 16,66 but integer is 16

sorry my english is not so good.

thank you

return of Delphi

Amir Mahfoozi — Wed, 31 Aug 2011 03:04:00 GMT

For people who had good time with Delphi :

http://channel9.msdn.com/Forums/Coffeehouse/Delphi-XE2-FireMonkey-similiar-to-SilverlightJupiter-but-cross-more-platform[^]

Invalid Number of parameters in CreateMutex

pix_programmer — Mon, 06 Jun 2011 06:14:00 GMT

Hi!
I'm trying to restrict my exe to only one at any time. I've used the following code:

var
Mutex : THandle;
 
Mutex := CreateMutex(nil,False,'MyMutexName');

I got the following error in CreateMutex:

'Invalid Number of Parameters". How to create a Mutex in Delphi?

html path in .lnk file

limelect — Tue, 24 May 2011 06:45:00 GMT

If i have a .lnk file
that point to a link of http://.... type
HOW do i get the string http://.....
using IShellLink
GetPath or GetDescription or any thing else
do not give me a solution.
the GetWorkingDirectory give me system32 as path
but i want the string http://.....
any help???