Archive for the ‘Delphi XE3’ Category
Posted by jpluimers on 2016/02/03
A while ago I bumped into this: As of Windows 7 (and probably Vista), the standard Windows Common Item (Open and Save) Dialogs expect the main thread to be initialised with STA because it is easier to support apartment threading in single-threaded apartments because COM provides synchronization on a per-call basis and the Windows GUI APIs are not guaranteed to be thread safe.
Windows XP and Server 2003 didn’t enforce this for the classic Windows Open and Save Dialogs , so it only appeared when the software below got run on Windows 7 in a way too late time frame (but the market share of XP is still high ).
The reason is that when using Delphi, the TOpenDialog and TSaveDialog will use the classic Open and Save Dialogs on Windows < Vista and fall-forward to the new Common Item Dialogs handled by TFileOpenDialog and TFileSaveDialog (both will not fall backward).
When you have your COM initialisation done wrong, your application appears to hang. Amidst the plethora of threads started by the COM subsystem, these two dead-lock:
Read the rest of this entry »
Posted in Delphi , Delphi 10 Seattle , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | 2 Comments »
Posted by jpluimers on 2016/01/19
Just in case I need SynEdit in Unicode:
Old SVN versions are at
Newer Github repositories are at
The finaly one has a Demos folder and links to the original ANSI version. It seems the only version for which SynGen works in Unicode Delphi versions.
–jeroen
via Missed link? Anyone know what happens there? :) Once again: 1.SynEdit? … .
Posted in Delphi , Delphi 10 Seattle , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2015/12/17
DUnit registration can mix TestSuites and TestCases.
Some links:
–jeroen
Posted in Agile , Delphi , Delphi 10 Seattle , Delphi 2005 , Delphi 2006 , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi 5 , Delphi 6 , Delphi 7 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development , Unit Testing | Leave a Comment »
Posted by jpluimers on 2015/12/03
Nested DataSet fields assume identical naming of fields and parameters as Richard Stevens did comment in So I’m in total n00b mode here. I’m trying to set up a master/detail… .
Of course the documentation for that is easy to find. Not.
Even this article by Cary Jensen doesn’t reveal the issue: Nesting DataSets in ClientDataSets .
So thanks Richard for clearing that up!
–jeroen
Posted in Delphi , Delphi 10 Seattle , Delphi 2007 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2015/12/01
On the todo list:
Interesting use of an IDE plugin: Copy a string from a “Watch” entry to the clipboard without quotes. – Thomas Mueller (dummzeuch) – Google+
Source: delphi – Can I change the display format for strings in the watch list? – Stack Overflow :
Every now and then I use the watch window to display strings which contain sql statements.Now I select Copy Value from the context menu and get
'SELECT NAME FROM SAMPLE_TABLE WHERE FIRST_NAME = ''George'''#$D#$A
but want
SELECT NAME FROM SAMPLE_TABLE WHERE FIRST_NAME = 'George'
The answer by MartynA has an OTA plugin that could be integrated with something like GExperts.
–jeroen
via: Interesting use of an IDE plugin: Copy a string from a “Watch” entry to the clipboard…
Posted in Delphi , Delphi 10 Seattle , Delphi 2005 , Delphi 2006 , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi 7 , Delphi x64 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2015/11/24
A while ago, I came across a class having (among other members) two methods named like this:
Within one of the other members of the class, I had to (temporarily) Stop processing, then Start it again.
But I couldn’t, as neither Start, nor Stop would make a record of the state it left the instance in.
Always ensure you know the state of an instance.
So I added the state, and tests to ensure a Stop/Start change was indeed not breaking things.
–jeroen
Posted in .NET , .NET 1.x , .NET 2.0 , .NET 3.0 , .NET 3.5 , .NET 4.0 , .NET 4.5 , C# , C# 1.0 , C# 2.0 , C# 3.0 , C# 4.0 , C# 5.0 , C# 6 (Roslyn) , Delphi , Delphi 10 Seattle , Delphi 2007 , Delphi 2009 , 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 2015/11/04
From a chat with a co-worker a while ago:
I’m not against properties. Just something against properties properties that are objects with writeable fields.
So even if you expose such a property as read-only, it can still get its writeable fields overwritten.
That is a pain when those are part of the state of the underlying object.
In other words: encapsulate your state changes.
Here we solved it by making
the type of the property immutable
the property writeable
react on state changes during the write
Proper encapsulation.
In this case it was a project mixing C# and Delphi, but you can easily apply the above to any language featuring classes and properties.
Another solution would have been to extend the type of the property so it can expose an event that fires during change. Much more convoluted.
–jeroen
Posted in .NET , C# , C# 1.0 , C# 2.0 , C# 3.0 , C# 4.0 , C# 5.0 , C# 6 (Roslyn) , Delphi , Delphi 10 Seattle , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | 2 Comments »
Posted by jpluimers on 2015/10/22
Recently I bumped into it again with one of the more current Delphi XE* versions and Delphi 2007: the IDE changing the DFM files without reason.
This time it was in a multi-team environment with many branches and DFM merge hell.
A few examples of properties and components getting changes:
Warren P suggests to review your DFM changes before committing to version control and I completely agree: it is the only way to ensure they are indeed unwanted changes.
There are some stop-gab things you could try, but these only partially help
–jeroen
via:
Posted in Delphi , Delphi 10 Seattle , Delphi 2005 , Delphi 2006 , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , QC , Software Development | 7 Comments »
Posted by jpluimers on 2015/10/06
Get the path to the most recent msbuild.exe from the registry :
Learn more about bidirectional Unicode characters
@echo off
:: http://stackoverflow.com/questions/328017/path-to-msbuild
:: http://www.csharp411.com/where-to-find-msbuild-exe/
:: http://timrayburn.net/blog/visual-studio-2013-and-msbuild/
:: http://blogs.msdn.com/b/visualstudio/archive/2013/07/24/msbuild-is-now-part-of-visual-studio.aspx
setlocal
:vswhereModernTry
:: https://github.com/Microsoft/vswhere/wiki/Find-MSBuild
:: Normal output example of `vswhere -legacy -latest -property installationPath` has no trailing back-slash:
:: `C:\Program Files (x86)\Microsoft Visual Studio 14.0\`
for /f "usebackq tokens=*" %%i in (`vswhere -latest -products * -requires Microsoft.Component.MSBuild -property installationPath`) do (
set InstallDir=%%i
)
:: without ENABLEEXTENSIONS, %InstallDir% is only available outside the above loop.
for %%v in (15.0, 14.0) do (
if exist "%InstallDir%\MSBuild\%%v\Bin\MSBuild.exe" (
set msBuildExe="%InstallDir%\MSBuild\%%v\Bin\MSBuild.exe"
goto :finish
)
)
:manualTry
:: order of the versions is important: get the most recent one
for %%v in (14.0, 12.0, 4.0, 3.5, 2.0) do (
for /f "usebackq tokens=2* delims= " %%c in (`reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\%%v" /v MSBuildToolsPath`) do (
set msBuildExe="%%dMSBuild.exe"
goto :finish
)
)
:vswhereLegacyTry
:: -legacy is not compatible with -products or -requires
:: note there is no Visual Studio 13.0 (just like there is no Office 13.0) likely because USA superstition.
:: https://en.wikipedia.org/wiki/Microsoft_Visual_Studio#History
:: msbuild was introduced in Visual Studio 8.0: https://en.wikipedia.org/wiki/MSBuild#History
:: Legacy output example of `vswhere -legacy -latest -property installationPath` has trailing back-slash:
:: `C:\Program Files (x86)\Microsoft Visual Studio 14.0\`
for /f "usebackq tokens=*" %%i in (`vswhere -legacy -latest -property installationPath`) do (
set InstallDir=%%i
)
:: without ENABLEEXTENSIONS, %InstallDir% is only available outside the above loop.
for %%v in (14.0, 12.0, 11.0, 10.0, 9.0, 8.0) do (
if exist "%InstallDir%MSBuild\%%v\Bin\MSBuild.exe" (
set msBuildExe="%InstallDir%MSBuild\%%v\Bin\MSBuild.exe"
goto :finish
)
)
:: nothing found
:finish
endlocal & if not [%msBuildExe%]==[] if exist %msBuildExe% ( echo %msBuildExe% )
Learn more about bidirectional Unicode characters
for /f " usebackq tokens=*" %%c in (`" %~dp0 get-msbuildExe-path.bat" do (
call %%c %*
)
With help from:
Note
This needs adoption for Visual Studio 2017 (15.0) and up; see the comments at the above gist :
–jeroen
Posted in .NET , .NET 2.0 , .NET 3.0 , .NET 3.5 , .NET 4.0 , .NET 4.5 , C# , C# 2.0 , C# 3.0 , C# 4.0 , C# 5.0 , C# 6 (Roslyn) , Delphi , Delphi 10 Seattle , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Delphi XE6 , Delphi XE7 , Delphi XE8 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2015/09/28
I’ve seen this question coming up a few times, and bumped into this at a client recently: the UAC dialog coming up when debugging a 32-bit executable.
This is caused (more details below) by Installer Detection Technology introduced in Windows Vista (with UAC) and tightened in more modern Windows versions.
The solution is to either:
not include Installer, Patch, Update, Upgrade, Setup, … in your EXE name
provide a correct manifest to your EXE (getting this right can be hard)
don’t use x86 as platform target
For software you don’t have source code for, you can alter the manifest with a requestedExecutionLevel element : Fixing the way Vista Auto-detects Installers – Ben’s Writing .
A few links on Installer Detection Technology in Windows:
Read the rest of this entry »
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The Wiert Corner - irregular stream of stuff 
lextm commented on Mar 9, 2017 •
vswhereis now recommended to locate MSBuild 15,https://github.com/Microsoft/vswhere
n9 commented on May 17, 2017
vswhere -products *to get standalone installation of BuildTools. (See Microsoft/vswhere#61.)