The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Software Development’ Category

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28800 Embarcadero DBX ADO.NET 2.0 driver for InterBase (version 17.0)

Posted by jpluimers on 2019/08/06

For my link archive in case of link rot: [WayBack/Archive.is] 28800 Embarcadero DBX ADO.NET 2.0 driver for InterBase (version 17.0)

Note these are the same as the ones shipping with the Interbase XE7 developer edition.

The less old alternative from Embarcadero alternative is the ODBC driver: [WayBack/Archive.is] 28975 Embarcadero InterBase ODBC Driver for Windows, 32-bit and 64-bit

Maybe it is a good idea to look into [WayBack] All IBProvider news Firebird and InterBase driver for OLE DB and ADO.NET

–jeroen 

Posted in .NET, Database Development, Development, InterBase, Software Development | Leave a Comment »

Delphi XE2: IDE out of memory problem? Check the library path length

Posted by jpluimers on 2019/08/06

Curious, but somehow shortening the library path solved the problem Alberto had: [WayBack] Hello Everybody, I have an application developed in XE2 (Hot Fix 2 + IDE Fix Pack installed) that has started giving me the “out of memory” error message… – Alberto Paganini – Google+:

Alberto Paganini

It turned out the length of the library path was the culprit of the IDE out of memory error messages.
I have reduced the length of the library path and the error messages have reduced dramatically.
There are still a few out of memory messages tho.

–jeroen

Posted in Delphi, Delphi XE2, Development, Software Development | Leave a Comment »

.NET and PowerShell: Getting proper version info from a PE file like EXE, DLL, assembly

Posted by jpluimers on 2019/08/01

I’ve learned the hard way that both .NET and PowerShell version information isn’t always accurate or usable for two reasons which I later found in various other blog and forum posts:

The easiest is to use these numbers to create a [WayBack] Version Class (System) instance using the [WayBack] Version Constructor (Int32, Int32, Int32, Int32) constructor. This has the added benefit that you directly compare versions with each other.

Sometimes it makes even sense to take the highest version from Product and File.

In PowerShell, this is the way to do that, assuming $imagePath points to a [WayBack] Portable Executable:

try {
  $VersionInfo = (Get-Item $imagePath).VersionInfo
  $FileVersion = [version]("{0}.{1}.{2}.{3}" -f $VersionInfo.FileMajorPart, $VersionInfo.FileMinorPart, $VersionInfo.FileBuildPart, $VersionInfo.FilePrivatePart)
  $ProductVersion = [version]("{0}.{1}.{2}.{3}" -f $VersionInfo.ProductMajorPart, $VersionInfo.ProductMinorPart, $VersionInfo.ProductBuildPart, $VersionInfo.ProductPrivatePart)
  $ActualVersion = $(if ($ProductVersion -gt $FileVersion) { $ProductVersion } else { $FileVersion })
}
catch {
  $ActualVersion = [version]("0.0.0.0")
}

Background information:

–jeroen

Posted in CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | Leave a Comment »

New in 10.2.2: Component icons – Community Blogs – Embarcadero Community

Posted by jpluimers on 2019/07/31

A well balanced post that shows what you can attain by thinking in advance and remembering backward compatibility: [WayBack] New in 10.2.2: Component icons – Community Blogs – Embarcadero Community

Larger icons can now be in PNG format (future IDE versions will use 128×128 for HiDPI screens) so older IDE versions do not get confused. Since newer IDE versions prefer PNG over BMP icons, backward compatibility is easier.

Via: [WayBack] A look at the new component icons in 10.2.2.  – David Millington – Google+

–jeroen

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

It’s a blong, blong, blong road…: ‘What if?’ scenario analysis in the CPU window

Posted by jpluimers on 2019/07/31

Patching code at debug-time: [WayBack] It’s a blong, blong, blong road…: ‘What if?’ scenario analysis in the CPU window.

Remember:

  • There are dragons
  • Patching too many bytes will kill a kitten and likely your application.
  • Bytes in memory might not be what they seem, especially when having breakpoints (and the debugger frantically trying to set/remove $CC bytes for the INT 3 instruction)

I’ve done this for 20+ years and usually use the $90 byte (NOP instruction) though your experience may be different.

–jeroen

 

Posted in Debugging, Delphi, Development, Pascal, Software Development, Turbo Pascal | Leave a Comment »

Ternary operator in PowerShell – Stack Overflow

Posted by jpluimers on 2019/07/31

I like this built-in construct by fbehrens most:

$result = If ($condition) {"true"} Else {"false"}

Everything else is incidental complexity and thus to be avoided.

For use in or as an expression, not just an assignment, wrap it in $(), thus:

write-host $(If ($condition) {"true"} Else {"false"})

There are even more elegant constructs, but those require setting up an alias before using them.

Source: [WayBack] Ternary operator in PowerShell – Stack Overflow

–jeroen

Posted in CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | Leave a Comment »

Sometimes a race condition is in just two lines of code

Posted by jpluimers on 2019/07/30

A race condition can be this small:

if Assigned(Setting.OnChanged) then
  Setting.OnChanged(Setting);

If in between these lines, the value of Setting.OnChanged becomes nil, then you have an access violation.

It is a very slim, but real chance.

–jeroen

Posted in Delphi, Development, Multi-Threading / Concurrency, Software Development | 4 Comments »

scripting – Run Multiple Powershell Scripts Sequentially – on a Folder – Combine Scripts into a Master Script – Stack Overflow

Posted by jpluimers on 2019/07/30

Cool tip by mjolinor to execute the scripts 1.ps1, 2.ps1 and 3.ps1 from a master.ps1 script in the same directory:

&"$PSScriptroot\1.ps1"
&"$PSScriptroot\2.ps1"
&"$PSScriptroot\3.ps1"

Source: [WayBack] scripting – Run Multiple Powershell Scripts Sequentially – on a Folder – Combine Scripts into a Master Script – Stack Overflow.

It uses $PSScriptroot which got introduced in PowerShell 2 in modules and extended in PowerShell 3 to be available in all scripts. More information in [WayBack] about_Automatic_Variables | Microsoft Docs

–jeroen

Posted in CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | Leave a Comment »

What’s New In Python 3.0

Posted by jpluimers on 2019/07/30

Old, but I keep bumping in old Python code that needs conversion to work in Python 3.x: [WayBack] What’s New In Python 3.0 — Python 3.6.3 documentation.

Via: [WayBack] Version 3: History of Python – Wikipedia

–jeroen

Posted in Development, Python, Scripting, Software Development | Leave a Comment »

Convert cURL command syntax to Python requests, Node.js code

Posted by jpluimers on 2019/07/26

Utility for converting curl commands to code

For my link archive: [WayBack] Convert cURL command syntax to Python requests, Node.js code

–jeroen

Posted in *nix, *nix-tools, cURL, Development, JavaScript/ECMAScript, Node.js, Power User, Python, Scripting, Software Development | Leave a Comment »

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