How to debug VCL core module in Delphi [Edit]

Hi, all.

One of the Delphi programming strength is that VCL source code is opened compared with other compiler. Somtimes, I need to debug VCL core module such as Classes,pas or Forms.pas. Let me introduce simple tips. I will show you an example using Classes.pas file.

1. Make Project and save.
2. Goto Classes.pas. Ctrl C+V all file contents.
3. Add New - Unit, Ctrl+V, and save Classes.pas into the same folder with the project.
4. Try to debug.

5. When you try to add some VCL unit, you can meet the following error.
     *The project already contains a form or module names ".....".*
6. In this case, first, remove the exist unit in project file.

I hope it will be helpful to you.

Thank you.

Demo Video :

Edited by: Gilbert Lee on Apr 3, 2010 8:51 AM
4/3/2010 3:58:05 PM
embarcadero.delphi.ide 3925 articles. 0 followers. Follow

2 Replies

Similar Articles

[PageSpeed] 43
Get it on Google Play
Get it on Apple App Store

Gilbert Lee wrote:

> I hope it will be helpful to you.

Why don't you just set the "[X] Use Debug Units" in the project options

Andreas Hausladen
4/3/2010 4:44:35 PM
> Why don't you just set the "[X] Use Debug Units" in the project options
> dialog?


Project Options - Compiler - Use Debug DCUs

Thank you for your information.
4/3/2010 4:52:16 PM

Similar Artilces:

Is it posible to configure Delphi XE3 IDE to use Delphi 7 compiler/debuger
Hi! Like many other developer out there I have several project which has been developed with older version of Delphi (Delphi 7). Since theese projects rely on some components which are not compatible with newer versions of Delphi (no newer versions available) I'm forced to do any maintnance on theese projects using Delphi 7. Another solution would be to find replacment components which would provide me with same capabilities and work with latest versions of Delphi. But this would probbably require compleete rewritings of my projects (lots and lots of work). So currently I'm using...

SEPA components for Delphi with Source Code (Delphi 5
Hi all, in the european union change next year the Bankingformat to the SEPA Format. All peoples and companies must change the bankingssoftware and the costumer data form acountnummers in the new IBAN and BIC numbers. See: Functions: - generate SEPA XML'S - Calc IBAN - BIC Database (DE,AT and CH) Questions: PS: Bankinssoftware for Develpoers (Germany only) El 26/10/13 21:38, A...

Convert Delphi 7 to Delphi 2009 [Edit]
Hi! Please, I have a code done in Delphi 7... Now I want to convert Delphi 7 to Delphi 2009 but I'm having problems when compile the code. Error message: +[DCC Fatal Error] Far.dpr(9): F2063 Could not compile used unit 'System.pas'+ Please can somebody help me? Source Download (349KB): Mirror Source Download: Password: delphi Thank u so much! (sorry for my bad english, it is not my native language) Edited by: loquax loquax on Jul 15, 2009 12:24 PM Sorry, bu...

New to Delphi
Hi I am new to Delphi & want to know good resources for learning to use it. Is there a list of good Delphi learning resources (books/online tutorials) somewhere? What recommendations can anyone make for someone new to Delphi (& only a hobby programmer at the moment)? A couple of weeks ago I started with DelphiXE4 trial & have Googled for a few Delphi resources but I haven't found anything very good yet for me as a beginner. I'm just struggling along trying to learn as I go! (I'm presently struggling with DragandDrop...see [

Migrating from Delphi 6 to Delphi XE 3! [Edit]
All, I am a Delphi developer working in an windows form application developed using Delphi 6. Now, we are planning to upgrade the development tool. Can anyone provide me information related to major roadblocks that we can face while migrating from Delphi 6 to Delphi XE 3? Should we migrate to Delphi XE 3 or any other preferred version of Delphi based on the fact that our target users will be using Windows 7 or Windows 8? Do we have any tools or utilities to migrate the source code from Delphi 6 to higher version of Delphi? Also, any suggestions related to best practices are welcome....

Update Delphi 2005 to Delphi 2010, which do i need? [Edit]
Hello, we have one Delphi 2005 Professional here and want to upgrade to Delphi 2010, but we are a bit confused. Our distributor in Germany, ingram-micro offers several upgrade products: UPG DELPHI 2010 PRO - NAMED USER UPG DELPHI 2010 PRO - NAMED USER ELS UPG DELPHI 2010 PRO - NAMED USER FLEX RAD STUDIO 2010 PRO - UPG UPG RAD STUDIO 2010 PRO - NAMED ELC UPG RAD STUDIO 2010 PRO - NAMED FLEX UPG DELPHI 2010 PRO - CONCURRENT ELS UPG DELPHI 2010 PRO - CONCURRENT FLEX What do they mean exactly and which one do i need? At the moment delphi is installed on two PCs and we want to use ...

Delphi and Delphi for .Net
It seems that Delphi for .Net is slower than Delphi Win32 native applicaiton. I would like to know is it true all .Net application is slower than Win32 native applicaiton or it is Delphi for .Net only. Your information is great appreciated, Inung On 2011-06-21 18:20:17 +0100, Inung Huang said: > It seems that Delphi for .Net is slower than Delphi Win32 native applicaiton. > I would like to know is it true all .Net application is slower than > Win32 native applicaiton or it is Delphi for .Net only. If you are only running the code in the application once then, yes, yo...

Delphi vs Winform
This might be a little techie, but I think most people here are familiar with Delphi to understand the difference between a TWinControl and TGraphicControl. I was trying to create a C# Winform project based on a Delphi prototype and ran into this problem which I posted to some Winform forums ... This led me to an *obvious* deficiency in Winforms programming. I'd like to hear your thoughts. My question to the Winforms forums describing the problem is copied below: <snip> Hi, I mostly do Delphi development but would like to start my next small work project in Visual S...

Debugging DLL compiled with Delphi 7 in Delphi XE5
Dear Sirs/Madams, We are considering changing from Delphi 7 to Delphi XE5. Our project consists of a dll and an .exe file. I have begun converting the .exe file to Delphi XE5 and have successfully accessed the DLL compiled with Delphi 7. When I debug the DLL (using the "run parameters" and changing "host application" to the .exe file) in Delphi 7 I can set breakpoints etc. and they are triggered. However, when I attempt to debug the project in XE5, I get the following message: Module Load: xxx.dll. No Debug Info. Base Address: $015A0000. Process xxx.exe (2928) ...

Code works in Delphi 7 but not in Delphi 2010 [Edit]
hello, i have a procedure that open's a file by passing the file name as the parameter to the executable. something like this {code} C : \ P r o g r a m F i l e s \ Da c k e r \ D r a c k e r . e x e " G : \ D E l p h i 7 \ D e l p h i 7 A p p _ l o g . t " {code} The source code is {code} procedure OpenFileWithExe var hReg: HKEY; Ret: Longint; RegDataType, RegDataSize: DWORD; CmdLine: array [0..560] of Char; Len: Integer; SInfo: TStartupInfo; PInfo: TProcessInformation; begin Ret := windows.RegOpenKeyEx(HKEY_CURRENT_USER, ...

Delphi 2006 vs Delphi 2009 IDE stability
Hello, all. I have medium sized project which includes about 20Mb of source code (just size of *.pas files). I use Delphi 2006. There are third party component suites JVCL, DevExpress Bars, Pegasus Imaging. All updates applied. The main problem is IDE stability. About four..five times a day IDE become unstable after intensive usage of code insight functions (most often I press Ctrl+Space key). The best outcome is that I have to save everything and restart the IDE. The worst outcome is when IDE stalls or falls into endless loop of error messages and any unsaved work is lost. OS...

Delphi 7 to Delphi XE: TBlobField to XML [Edit]
Hi, I'm migrating a Delphi7 application to Delphi XE. I'm using a TClientDataSet to communicate, by using a XML frame, with my server. In this TClientDataSet I'm using a TBlobField which is an array of 384 byte. The blobField is allocate by a code like this : {code} myStream : TStream; myStream := aClientDataSet.CreateBlobStream(myBlobField, bmwrite); vResult := myStream.Write(ArrayOf384Byte[0], length(ArrayOf384Byte)); //vResult = 384 => GooD ! (...) {code} For communicate with the server, we have to decode the Blobfield in XML before to sending it. We have...

Text.Write speed
Hi ! I have speed troubles for using Text.Write method in Delphi 2006, particularly with distant files (local network). For example, with the following code ("F" is a text file ; "Line" is an about 200-character string): ----- AssignFile(F, FileName); try Rewrite(F); for l := 1 to 100 do begin for c := 1 to Length(Line) do Write(F, Line[c]); Writeln(F); end; finally CloseFile(F); end; ----- On a distant file: Delphi 5 -> 0.08 seconds Delphi 2006 -> close to 8 seconds Is there a speci...

Delphi 2006 to Delphi XE Crystal BPL problem [Edit]
I am in the process of migrating our application from Delphi 2006 to Delphi XE and, for ease of use, I have both 2006 and XE installed on my development computer. I access Crystal Reports XI RDC in our application and so I rebuilt the BPL in XE in order to add the new package to XE. However, when I try to add the package to XE I get the error message: “Registration procedure, Craxddrt_tbl.Register in the package c:\Documents and Settings\All Uers\Documents\RADS Studio\8.0\BPL\Crystal.bpl raised exception class EFilerError: Component TDatabase can’t be registered by package crystal.bpl be...

Web resources about - How to debug VCL core module in Delphi [Edit] - embarcadero.delphi.ide

Zvezda (ISS module) - Wikipedia, the free encyclopedia
27,743.8 kilometres per hour (17,239.2 mph) Zvezda ( Russian : Звезда , meaning "star"), DOS-8 , also known as the Zvezda Service Module , is ...

Popular Xposed module GravityBox now supports Android 6.0 Marshmallow
Be sure that whenever the Xposed framework is updated to support a new Android version, the popular module GravityBox is to follow. It has been ...

Ford recalls 300,000 Crown Vics over lighting module
... Mercury , Sedan Ford issued a recall notice for some 300,000 Crown Victoria and Mercury Grand Marquis sedans to have the lighting control module ...

Tambara Modules
I came in contact with Tambara modules when working on categorical understanding of lenses. They were first mentioned to me by Edward Kmett, ...

Samsung's first 128 GB DDR4 RAM modules for servers go into production
Samsung has announced that it is starting mass production of the industry’s first "through silicon via" (TSV) 128GB DDR4 memory modules for high-end ...

Panasonic Launching Larger High-Efficiency Solar PV HIT Modules
Originally published on Sustainnovate. By Henry Lindon Larger high-efficiency solar photovoltaic HIT module offerings from Panasonic — including ...

LONGi to supply 300MWp PV modules to CMNE, say reports
Xi'an LONGi Silicon Materials has won procurement orders for 300MWp PV modules made of mono-Si cells from China Minsheng New Energy (CMNE), according ...

AT&T Introduces LTE Modules for IoT Devices
Our first Internet of Things story of CES 2016! AT&T announced today that they will make 4G LTE modules available for those looking to get into ...

AT&T's LTE Modules Ease IoT Device Design, Development
DAILY VIDEO: AT&T launches LTE modules for IoT market; HP brings consumer cool to business-class notebook PCs; Acer's premium Windows 10 smartphone ...

NASA Has Completed Welding Together The Orion Spacecraft's Crew Module
... but preparations are well underway for the first mission into deep space: engineers have just completed welding together the Orion crew module. ...

Resources last updated: 2/11/2016 8:17:02 PM