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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Delphi’ Category

Who maintains GExperts · GitHub?

Posted by jpluimers on 2021/06/03

I wnder who maintains [WayBack] GExperts · GitHub:

GExperts has 4 repositories available. Follow their code on GitHub.

It has not been updated for about 5 years, but contains some important bits.

–jeroen

 

Posted in Delphi, Development, GExperts, Software Development | 1 Comment »

Delphi: Passing build variables to batch files; I think the easiest is to use environment variables

Posted by jpluimers on 2021/06/02

A long time ago, I wrote about Delphi prebuild/prelink/postbuild events.

In practice, especially that you cannot inherit build events, then add new ones (), it is convenient to put all you need in a script, for instance a batch file.

Passing parameters to that script, then in my experience, is easiest to do as environment variables.

That way you can do this in a script:

> %temp%\build.txt echo ~dp0=%~dp0
>> %temp%\build.txt echo $(BDS)=%BDS%
>> %temp%\build.txt echo $(INPUTDIR)=%INPUTDIR%
>> %temp%\build.txt echo $(PROJECTDIR)=%PROJECTDIR%
>> %temp%\build.txt echo $(OUTPUTDIR)=%OUTPUTDIR%
>> %temp%\build.txt echo $(Platform)=%Platform%

if "%OUTPUTDIR:~0,2%"==".." set OUTPUTDIR=%INPUTDIR%%OUTPUTDIR%
>> %temp%\build.txt echo $(OUTPUTDIR)=%OUTPUTDIR%

Passing the parameters and calling the script results in this build event contents:

set Platform=$(Platform)
set INPUTDIR=$(INPUTDIR)
set PROJECTDIR=$(PROJECTDIR)
set OUTPUTDIR=$(OUTPUTDIR)
call ..\post-build-event.bat

The IDE then shows this fragment in the project output:

Target PostBuildEvent:
    set Platform=Win32&&set INPUTDIR=D:\Versioned\TestRepostitory\Test Project With Spaces\&&set PROJECTDIR=D:\Versioned\TestRepostitory\Test Project With Spaces&&set OUTPUTDIR=..\EXE Output Directory With Spaces\&&call ..\post-build-event.bat

The above batch file also shows things:

  1. how to handle relative directories in the OUTPUTDIR build parameter: check if the first two characters are .. (trick via [WayBack] Check if Batch variable starts with “…” – Stack Overflow).
  2. spaces are handled fine without any need to double quote the set assignments
  3. build-event lines are concatenated using the && success operator
  4. Parameters INPUTDIR and OUTPUTDIR end with a backslash, but PROJECTDIR does not (Delphi prebuild/prelink/postbuild events explains more about the parameters).

Note:

  • environment variable BDS does not end in a backslash
  • expansion %~dp0 does end in a backslash

With this trick now you can copy BPL files for the right platform:

xcopy /y "%BDS%\Redist\%Platform%\rtl250.bpl" "%OUTPUTDIR%"

Note that the LibSuffix (with value 250 for Delphi 10.2 Tokyo) is not available as environment variable, nor build parameter. The environment variable ProductVersion however (with value 19.0 for Delphi 10.2 Tokyo) is. So technically, you could make a mapping.

–jeroen

Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »

c++ – DLL Load Library – Error Code 126 – Stack Overflow: use Process Monitor, search for the first NAME NOT FOUND

Posted by jpluimers on 2021/06/01

In addition to [WayBack] c++ – DLL Load Library – Error Code 126 – Stack Overflow while debugging LoadLibrary error 126

Windows dll error 126 can have many root causes. The most useful methods I have found to debug this are:

  1. Use dependency walker to look for any obvious problems (which you have already done)
  2. Use the sysinternals utility [WayBack] Process Monitor – Windows Sysinternals | Microsoft Docs from Microsoft to trace all file access while your dll is trying to load. With this utility, you will see everything that that dll is trying to pull in and usually the problem can be determined from there.

Search for the first entry NAME NOT FOUND after your library is being loaded.

It indicates the module that cannot be found which indirectly causes error number 126 (ERROR_MOD_NOT_FOUND in [WayBack] System Error Codes (0-499) – Windows applications | Microsoft Docs ) in [WayBack] LoadLibrary:

 

ERROR_MOD_NOT_FOUND

126 (0x7E)

The specified module could not be found.

 

This is why I upvoted the very relevant comment:

… when I looked at the rows surrounding my dll being loaded I saw MSVCP140D.dll was giving a result of NAME NOT FOUND. Turns out the machine that couldn’t load my dll doesn’t have the ‘D’ version of MSVCP140.dll. Everything worked when I built my dll for release! – [WayBack] Pakman.

–jeroen

Posted in Delphi, Development, Software Development, Windows Development | Leave a Comment »

Devart ODAC product versions (Oracle Data Access Components History)

Posted by jpluimers on 2021/06/01

ODAC version history is confusing wheres [WayBack] Oracle Data Access Components – FAQ talks about version 6.00, [WayBack] Oracle Data Access Components History talks about version 10.x.y.

The history page is correct.

–jeroen

Posted in Delphi, Development, Software Development | Leave a Comment »

Porting old code: Delphi compiler error E2064 Left side cannot be assigned to

Posted by jpluimers on 2021/05/27

Quoting this in full because it nicely illustrated the introduction of an intermediate variable that cannot be assigned to a second time after initial setup by the with statement: [WayBack] Embarcadero Newsgroup Archive :: embarcadero.public.delphi.ide :: Re: Delphi 2010 Compile error E2064 Left side cannot be assigned to.

Subject: Re: Delphi 2010 Compile error E2064 Left side cannot be assigned to
Posted by: Uwe Schuster (jediv…@bitcommander.de)
Date: Sat, 10 Oct 2009

Finn Tolderlund wrote:

> I get this error in Delphi 2010 with the code below:
> But if I remove the () from the line, it compiles and executes ok.
> Is it a bug in the compiler?
> …
with (Pal.palPalEntry[i]) do  // Compile error: E2064 Left side cannot be assigned to
with Pal.palPalEntry[i] do  // Works fine

This is no bug, because the parenthesis generates an intermediate
non-addressable value and D2010 does not longer allow write access to intermediate values with “with”.


Uwe

This also might explain Delphi 10.2 Tokyo introduced a “with” warning: for most “with” statements, W1048 is raised ([RSP-17326] with statements generate W1048 unsafe typecast warning – Embarcadero Technologies), assuming that the intermediate is a pointer variable.

–jeroen

Posted in Delphi, Development, Software Development | Leave a Comment »

msbuild build events can inherit, but not add in addition to inherited build events (so projects in Visual Studio, Delphi and others cannot do that either)

Posted by jpluimers on 2021/05/26

Bummer: I tried to inherit the build events from a base configuration, then add some extra steps for some of the inheriting configurations.

Those configurations just executed the extra steps, not the inherited steps.

This affects Visual Studio, Delphi and any other tool based on msbuild, as this is an ms-build thing:

–jeroen

Posted in .NET, Continuous Integration, Delphi, Development, msbuild, Software Development, Visual Studio and tools | Leave a Comment »

Figure out access violation in Dsmtoolwindow.GetPreferences

Posted by jpluimers on 2021/05/26

Access violation when loading the Delphi IDE

Got the below error on Delphi 10.2 Tokyo with ODAC trial from DevArt at Delphi startup time (Error: Access violation at address 188F3528 in module 'DataSetManager250.bpl'. Read of address 00000000.).

My guess it is some configuration prerequisite which – when not existing – is handled very ungracefully.

This might have to do with my installation being a non-administrator Delphi user, but the ODAC installation requiring UAC elevation to administrative level.

In short this means the installing user is different from the user that runs Delphi.

Related (indicating it was fixed years ago, but apparently isn’t) via dsmtoolwindow.getpreferences – Google Search:

Workaround is to unregister the DataSetManager250.bpl package, though I have to figure out what functionality that disables.

[188F3528]{DataSetManager250.bpl} Dsmtoolwindow.GetPreferences + $18
[23CA524D]{Jcl240.bpl  } Jclhookexcept. + $0
[50060B13]{rtl250.bpl  } System.@HandleAnyException (Line 19991, "System.pas" + 13) + $0
[211B3A05]{designide250.bpl} DockForm.TDockableForm.FormCreate (Line 258, "DockForm.pas" + 11) + $1B
[188F2DEA]{DataSetManager250.bpl} Dsmtoolwindow.TDsmToolWindow.FormCreate + $4E
[50C06BC1]{vcl250.bpl  } Vcl.Forms.TCustomForm.DoCreate (Line 3788, "Vcl.Forms.pas" + 3) + $C
[50C067DD]{vcl250.bpl  } Vcl.Forms.TCustomForm.AfterConstruction (Line 3671, "Vcl.Forms.pas" + 1) + $D
[50060039]{rtl250.bpl  } System.@AfterConstruction (Line 18301, "System.pas" + 2) + $5
[188EBE9B]{DataSetManager250.bpl} Dsmtoolwindow.TDsmToolWindow + $43B
[188EA93D]{DataSetManager250.bpl} Dsmtoolwindow.TDsmToolWindow.CreateForm + $19
[188F7C81]{DataSetManager250.bpl} Dsmexpert.initialization + $31
[50061276]{rtl250.bpl  } System.InitUnits (Line 22833, "System.pas" + 21) + $0
[500612E6]{rtl250.bpl  } System.@PackageLoad (Line 22861, "System.pas" + 8) + $0
[188A1A09]{DataSetManager250.bpl} __dbk_fcall_wrapper + $195
[188F6DA1]{DataSetManager250.bpl} Initialize + $5
[500A0377]{rtl250.bpl  } System.SysUtils.InitializePackage (Line 25779, "System.SysUtils.pas" + 4) + $0
[500A04D1]{rtl250.bpl  } System.SysUtils.LoadPackage (Line 25830, "System.SysUtils.pas" + 18) + $5
[21E1AFAF]{delphicoreide250.bpl} PasCppPakMgr.TIDEDesignPackage.ClearModules (Line 2189, "PasCppPakMgr.pas" + 14) + $10
[204E9A94]{coreide250.bpl} PakLoad.TPackage.DoLoadPackage (Line 146, "PakLoad.pas" + 0) + $8
[204E9C09]{coreide250.bpl} PakLoad.TPackage.Load (Line 220, "PakLoad.pas" + 7) + $7
[204EC425]{coreide250.bpl} PakMgr.TDesignPackage.Load (Line 591, "PakMgr.pas" + 2) + $2
[21E1B2CB]{delphicoreide250.bpl} PasCppPakMgr.TIDEDesignPackage.Load (Line 2292, "PasCppPakMgr.pas" + 4) + $3
[50060039]{rtl250.bpl  } System.@AfterConstruction (Line 18301, "System.pas" + 2) + $5
[21E1B0DF]{delphicoreide250.bpl} PasCppPakMgr.TIDEDesignPackage.DelayLoad (Line 2217, "PasCppPakMgr.pas" + 11) + $4
[21E1572A]{delphicoreide250.bpl} PasCppPakMgr.LoadDesignPackage (Line 463, "PasCppPakMgr.pas" + 10) + $5
[0B6A0F84]{IDEFixPack.dll} SplashProgress2005p.HookedLoadDesignPackage (Line 277, "SplashProgress2005p.pas" + 3) + $3
[21E15A33]{delphicoreide250.bpl} PasCppPakMgr.LoadProjectPackages (Line 534, "PasCppPakMgr.pas" + 52) + $11
[21F20DBF]{delphicoreide250.bpl} BasePasProjOpts.TProjOptsManager.DoLoadPackages (Line 1604, "BasePasProjOpts.pas" + 22) + $6
[21F21BB4]{delphicoreide250.bpl} BasePasProjOpts.TProjOptsManager.LoadPackages (Line 1839, "BasePasProjOpts.pas" + 0) + $0
[21F22BD5]{delphicoreide250.bpl} BasePasProjOpts.TProjectOptions.LoadPackages (Line 2419, "BasePasProjOpts.pas" + 0) + $5
[22585BF3]{delphide250.bpl} DelphiProject.TDelphiProjectCreationTrait.LoadDefaultLibraries (Line 256, "DelphiProject.pas" + 1) + $1F
[2058A109]{coreide250.bpl} ProjectGroup.TDefaultProjectWrapper.LoadDefaultLibraries (Line 3544, "ProjectGroup.pas" + 5) + $31
[206DB2B9]{coreide250.bpl} Desktop.LoadDefaultDesktopState (Line 966, "Desktop.pas" + 3) + $9
[206DC0D5]{coreide250.bpl} Desktop.LoadDesktop (Line 1223, "Desktop.pas" + 73) + $0
[0049FBA8]{bds.exe     } AppMain.PostCreateInit (Line 2154, "AppMain.pas" + 57) + $0
[004A00B6]{bds.exe     } AppMain.TAppBuilder.CMPostCreateInit (Line 2257, "AppMain.pas" + 4) + $1
[50AC4C16]{vcl250.bpl  } Vcl.Controls.TControl.WndProc (Line 7326, "Vcl.Controls.pas" + 91) + $6
[50C110C3]{vcl250.bpl  } Vcl.Forms.TApplication.WndProc (Line 10270, "Vcl.Forms.pas" + 194) + $1
[50AC97FB]{vcl250.bpl  } Vcl.Controls.TWinControl.WndProc (Line 10197, "Vcl.Controls.pas" + 166) + $6
[50C080B5]{vcl250.bpl  } Vcl.Forms.TCustomForm.WndProc (Line 4546, "Vcl.Forms.pas" + 209) + $5
[50AC8DC8]{vcl250.bpl  } Vcl.Controls.TWinControl.MainWndProc (Line 9896, "Vcl.Controls.pas" + 3) + $6
[5016EBC4]{rtl250.bpl  } System.Classes.StdWndProc (Line 17406, "System.Classes.pas" + 9) + $2
[50C11A6F]{vcl250.bpl  } Vcl.Forms.TApplication.ProcessMessage (Line 10613, "Vcl.Forms.pas" + 23) + $1
[50C11AB2]{vcl250.bpl  } Vcl.Forms.TApplication.HandleMessage (Line 10643, "Vcl.Forms.pas" + 1) + $4
[50C11DE5]{vcl250.bpl  } Vcl.Forms.TApplication.Run (Line 10781, "Vcl.Forms.pas" + 26) + $3
[005088E2]{bds.exe     } bds.bds (Line 212, "" + 7) + $7

Solved the access violation

Notes:

  • %APPDATA% points to %USERPROFILE%\AppData\Roaming (where usually %USERPROFILE% is on the %HOMEDRIVE%)

Fix script (the double backslash \\ is needed, otherwise the final double quote " becomes part of the path name):

setlocal
:: 19.0 is the version for Delphi 10.2 Tokyo 
set ProductVersion=19.0
reg add "HKEY_CURRENT_USER\Software\Devart\DataSetManager\BDS\%ProductVersion%" /v "ConfigFilePath" /f /t REG_SZ /d "%APPDATA%\Embarcadero\BDS\%ProductVersion%\\"
endlocal

This allows for an XML file named DataSetManager.cfg to be created in the ConfigFilePath directory.

Even though Process Monitor will show access to the below keys, there is no need to add any values there:

  • KEY_CURRENT_USER\Software\Devart\DBMonitor
  • KEY_CURRENT_USER\SOFTWARE\Devart\ODAC
  • HKLM\Software\WOW6432Node\Devart\ODAC
  • HKLM\Software\WOW6432Node\Devart\Odac

Deploy enough BPLs

Another thing when running ODAC trial and licensed applications

---------------------------
ODAC
---------------------------
%1 is not a valid Win32 application
ODAC Trial version needs additional "bpl" files to be present on the user PC.
If you build your project without run-time packages you need:
  dac250.bpl
  odac250.bpl
---------------------------
OK   
---------------------------

This message is incomplete; what it should say is that any BPL dependencies must be deployed. One way to find out about those is to use I wanted to know the loaded DLLs in a process like Process Explorer shows, but from the console: Sysinternals ListDLLs to the rescue.

Another way is to use TDUMP (see [WayBack] TDUMP.EXE, the File Dumping Utility) and search for the import tables. I did just that for the 10.2 trial; below is the full list.

There is way better documentation at Devart ODAC Deployment: Deploying Windows applications built without run-time packages which fails to properly archive in the WayBack machine (it gets into a redirect loop) so I quote it in full:

Deploying Windows applications built without run-time packages

You do not need to deploy any files with ODAC-based applications built without run-time packages, provided you are using a registered version of ODAC.

You can check your application does not require run-time packages by making sure the “Build with runtime packages” check box is not selected in the Project Options dialog box.

Trial Limitation Warning

If you are evaluating deploying Windows applications with ODAC Trial Edition, you will need to deploy the following DAC BPL files:

dacXX.bpl always
odacXX.bpl always

and their dependencies (required IDE BPL files) with your application, even if it is built without run-time packages:

rtlXX.bpl always
dbrtlXX.bpl always
vcldbXXX.bpl always

Deploying Windows applications built with run-time packages

You can set your application to be built with run-time packages by selecting the “Build with runtime packages” check box in the Project Options dialog box before compiling your application.

In this case, you will also need to deploy the following BPL files with your Windows application:

dacXX.bpl always
odacXX.bpl always
dacvclXX.bpl if your application uses the OdacVcl unit
odacvclXX.bpl if your application uses the OdacVcl unit
crcontrolsXX.bpl if your application uses the CRDBGrid component

From those posts and the below full list, you also need to deploy the bold dependencies:

  • dac250.bpl
    • rtl250.bpl
    • dbrtl250.bpl
  • odac250.bpl
    • rtl250.bpl
    • dbrtl250.bpl
    • dac250.bpl

Enabling your projects to use ODAC packages

To get around errors like "E2202 Required package 'odac' not found", you need to ensure the correct .dcp files for ODAC are referenced.

Unlike Delphi, the ODAC .dcp files contain a version number, so in your required packages list, ensure you add them not like rtl;dbrtl, but like dac250;odac250.

List of various ODAC BPL dependencies

dac250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from wsock32.dll
Imports from dbrtl250.bpl
Imports from ole32.dll
Imports from user32.dll

dacfmx250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from user32.dll
Imports from fmx250.bpl
Imports from dac250.bpl

dacvcl250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from user32.dll
Imports from dac250.bpl
Imports from vcl250.bpl

dcldac250.bpl
Imports from vclactnband250.bpl
Imports from wininet.dll
Imports from shell32.dll
Imports from user32.dll
Imports from version.dll
Imports from oleaut32.dll
Imports from dac250.bpl
Imports from dacvcl250.bpl
Imports from vcldb250.bpl
Imports from dcldb250.bpl
Imports from xmlrtl250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from designide250.bpl
Imports from ole32.dll
Imports from dbrtl250.bpl
Imports from gdi32.dll
Imports from vcl250.bpl

odac250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from version.dll
Imports from user32.dll
Imports from dac250.bpl
Imports from advapi32.dll

odacvcl250.bpl
Imports from kernel32.dll
Imports from odac250.bpl
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from dac250.bpl
Imports from dacvcl250.bpl
Imports from vcl250.bpl

dclodac250.bpl
Imports from vclactnband250.bpl
Imports from odac250.bpl
Imports from dcldac250.bpl
Imports from odacvcl250.bpl
Imports from shell32.dll
Imports from user32.dll
Imports from dac250.bpl
Imports from dcldb250.bpl
Imports from vcldb250.bpl
Imports from dacvcl250.bpl
Imports from vclimg250.bpl
Imports from kernel32.dll
Imports from xmlrtl250.bpl
Imports from rtl250.bpl
Imports from designide250.bpl
Imports from dbrtl250.bpl
Imports from vcl250.bpl

odacfmx250.bpl
Imports from kernel32.dll
Imports from odac250.bpl
Imports from rtl250.bpl
Imports from dacfmx250.bpl
Imports from dbrtl250.bpl
Imports from fmx250.bpl
Imports from dac250.bpl

dclodacfmx250.bpl
Imports from kernel32.dll
Imports from odac250.bpl
Imports from odacfmx250.bpl
Imports from rtl250.bpl
Imports from dacfmx250.bpl
Imports from dbrtl250.bpl
Imports from fmx250.bpl
Imports from dac250.bpl

oraprov250.bpl
Imports from kernel32.dll
Imports from odac250.bpl
Imports from dsnap250.bpl
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from dac250.bpl

dcloraprov250.bpl
Imports from kernel32.dll
Imports from odac250.bpl
Imports from dsnap250.bpl
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from oraprov250.bpl
Imports from dac250.bpl

datasetmanager250.bpl
Imports from vclactnband250.bpl
Imports from dcldac250.bpl
Imports from comctl32.dll
Imports from user32.dll
Imports from dac250.bpl
Imports from vclx250.bpl
Imports from dacvcl250.bpl
Imports from dcldb250.bpl
Imports from vcldb250.bpl
Imports from kernel32.dll
Imports from xmlrtl250.bpl
Imports from rtl250.bpl
Imports from designide250.bpl
Imports from dbrtl250.bpl
Imports from gdi32.dll
Imports from vcl250.bpl

crcontrols250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from user32.dll
Imports from dac250.bpl
Imports from vcldb250.bpl
Imports from vcl250.bpl
Imports from gdi32.dll

dclcrcontrols250.bpl
Imports from kernel32.dll
Imports from rtl250.bpl
Imports from dbrtl250.bpl
Imports from crcontrols250.bpl
Imports from dac250.bpl
Imports from vcldb250.bpl
Imports from vcl250.bpl

oramigwizard250.dll
Imports from vclactnband250.bpl
Imports from odac250.bpl
Imports from odacvcl250.bpl
Imports from dcldac250.bpl
Imports from shell32.dll
Imports from user32.dll
Imports from dac250.bpl
Imports from vclx250.bpl
Imports from dcldb250.bpl
Imports from vcldb250.bpl
Imports from dacvcl250.bpl
Imports from vclimg250.bpl
Imports from kernel32.dll
Imports from xmlrtl250.bpl
Imports from dclodac250.bpl
Imports from rtl250.bpl
Imports from designide250.bpl
Imports from dbrtl250.bpl
Imports from vcl250.bpl

packagewizard250.dll
Imports from vclactnband250.bpl
Imports from odac250.bpl
Imports from odacvcl250.bpl
Imports from dcldac250.bpl
Imports from dac250.bpl
Imports from vclx250.bpl
Imports from dacvcl250.bpl
Imports from vcldb250.bpl
Imports from dcldb250.bpl
Imports from vclimg250.bpl
Imports from kernel32.dll
Imports from xmlrtl250.bpl
Imports from dclodac250.bpl
Imports from rtl250.bpl
Imports from designide250.bpl
Imports from dbrtl250.bpl
Imports from vcl250.bpl

–jeroen

Posted in Delphi, Delphi 10.2 Tokyo (Godzilla), Development, Software Development | Leave a Comment »

Delphi: creating copies of installed components to repositories for portability across use cases

Posted by jpluimers on 2021/05/25

Often it is useful to have 3rd party components part of a repository so it is easier to increase portability.

For instance when you want to include or exclude some of them in certain projects by installing/deinstalling them to/from the IDE.

This can be useful for cases where components bite each other, or you want to vary the components in use by version without spinning up new VMs (Delphi registration counts can be a pain for new VMs; you need to be very careful as you can never decrease your registration count).

I usually do this by having 3 batch files:

  1. copy from an installed 3rd party library to a repository in a relative way
  2. register any needed relative files into the IDE
  3. unregister any needed relative files in from the IDE

If successful, I can uninstall the library.

I especially take this approach with 3rd party libraries that stuff to global places (inside the Delphi installation directory, or worse, inside the Windows directories).

That way, I can try to ensure that compilation of running only uses files from the repository, making my options for portability larger.

Examples I did this for are for instance QuickReports and ODAC.

Some bits are tricky to get right, especially loading dependencies.

It helps to understand that for executable files Windows also searches for dependencies in the directory of the executable file.

For libraries, that does not happen. Which means that if a BPL has dependencies, they either have to be explicitly loaded before (for instance by being in the Known Packages registry entries), or on the search PATH.

Delphi has the %BDSCOMMONDIR% directory in the search PATH. It usually points to “%PUBLIC%\Documents\Embarcadero\Studio\%ProductVersion%\Bpl” (where ProductVersion=19.0 for Delphi 10.2 Tokyo).

There might be a away around this using manifests, but this means modifying the BPL files, which is beyond the point of having these copy scripts.

More on those environment variables in a later blog post.

Related:

–jeroen

Read the rest of this entry »

Posted in Conference Topics, Conferences, Delphi, Delphi 10.2 Tokyo (Godzilla), Development, Event, Software Development | Leave a Comment »

I wanted to know the loaded DLLs in a process like Process Explorer shows, but from the console: Sysinternals ListDLLs to the rescue

Posted by jpluimers on 2021/05/20

In Windows, historically most people approach investigation GUI first. Having turned 50 a while ago, I am no exception.

My real roots however are on the command-line and scripting: roughly 1980s Apple DOS, CP/M, SunOS (yay sh Bourne shell!), MS-DOS, 4DOS, and VAX/VMS (yay DCL shell!), from the 1990s on, some Solaris, a little bit of AIX, HP-UX and quite a bit of Linux, MacOS (né OS/XMac OS),  and some BSD descendants derivatives (SunOS, AIX and MacOS are based on the Berkeley Software Distribution), and this century a more growing amount of PowerShell).

So I was glad to find out the makers of Process Explorer also made [WayBack] ListDLLs – Windows Sysinternals | Microsoft Docs (via windows get dlls loaded in process – Google Search)

List all the DLLs that are currently loaded, including where they are loaded and their version numbers.

ListDLLs is a utility that reports the DLLs loaded into processes. You can use it to list all DLLs loaded into all processes, into a specific process, or to list the processes that have a particular DLL loaded. ListDLLs can also display full version information for DLLs, including their digital signature, and can be used to scan processes for unsigned DLLs.

Usage

listdlls [-r] [-v | -u] [processname|pid]
listdlls [-r] [-v] [-d dllname]

Parameter Description
processname Dump DLLs loaded by process (partial name accepted).
pid Dump DLLs associated with the specified process id.
dllname Show only processes that have loaded the specified DLL.
-r Flag DLLs that relocated because they are not loaded at their base address.
-u Only list unsigned DLLs.
-v Show DLL version information.

Download: [WayBack] ListDlls.zip.

Now it is much easier to generate a draft deploy list of DLLs (and for Delphi: BPLs) based on a process running on a development machine.

Example output (the -r flags relocation warnings; the first part is the [WayBack] shim that Chocolatey created around the second which is from SysInternals):

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ODAC default install paths for Delphi 10.2 Tokyo

Posted by jpluimers on 2021/05/20

A few notes on the ODAC install:

  1. Download of x.x.x is at [WayBack] www.devart.com/odac/odac25.exe via [WayBack] www.devart.com/odac/download.html

    The 25 is DllSuffix minus trailing zero for Delphi 10.2 Tokyo, or the “real” Delphi version; see Delphi version info table.

  2. It requires local administrator access when installing
  3. When installing it installs the Demos using the %USERPROFILE% directory of the local administrator user that installed it: %USERPROFILE%\Documents\Devart\ODAC for RAD Studio 10.2\Demos
    • You can replace this directory at install time; I prefer %PUBLIC%\Documents\Devart\ODAC for RAD Studio 10.2\Demos
  4. The rest of the files are in the global directory %ProgramFiles(x86)%\Devart\ODAC for RAD Studio 10.2
  5. If your Delphi license does not include certain targets (like Linux) they do not get installed at all.

–jeroen

 

 

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