Archive for the ‘Delphi’ Category
Posted by jpluimers on 2013/02/06
One of the really nice contributions on StackOverflow by Allen Bauer is almost 3 years ago.
It is about these three Delphi VCL methods introduced by TWinControl to make control development easier:
The really cool thing is that this API has been stable since 1995, and still allows you to subclass windows controls or create your own controls in a very simple way.
Note that Allen does not cover DestroyWnd or DestroyWindowHandle, but those are just counterparts of CreateWnd and CreateWindowHandle.
In normal Delphi application code, you have less Destroy overrides than Create overrides, and the same holds for control development.
–jeroen
via: delphi – What’s the difference between CreateWnd and CreateWindowHandle? – Stack Overflow.
Posted in Delphi, Delphi 1, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 3, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Delphi 8, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Software Development | 2 Comments »
Posted by jpluimers on 2013/01/30
Just in case you wonder about Property using Generics in Delphi, they are not possible.
Thanks David for mentioning it, Hallvard for mentioning it even earlier and Rudy for confirming it.
These are supported with Generics in Delphi:
All of the supported aspects are linked to articles from excellent authors. There is far more on the internet about Delphi and Generics, but those are a good start.
Thanks Malcolm, Phil, Barry, Hallvard, Jolyon and many others for posting all those articles!
Note that this is not possible in C# either, Julian Bucknall organized a chat and explains why, but there is a workaround which I might try to port to Delphi in the future.
–jeroen
via: Property using Generics in Delphi – Stack Overflow.
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, Delphi, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | 3 Comments »
Posted by jpluimers on 2013/01/29
If Gloegg@Bonn has posted a few nice Delphi entries over the last couple of years, so he should be added to DelphiFeeds.
His last one was a very funny post on the Delphi implementation of Sleep sort.
It uses Generics, so you need at least Delphi 2009 or better.
–jeroen
via:
Posted in Delphi, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | 4 Comments »
Posted by jpluimers on 2013/01/26
Back in the days I started programming, Micro Cornucopia was a wonderful magazine, so I’m glad that BitSavers scanned a few more issues and put them online today, a week after some great PDF scans: Turbo Assembler/Debugger (1993/1994), Borland C++/Object Windows Library (1993):
They covered a lot of languages (x86 and 68k assembly, C, C++, Turbo Pascal and many more), and very interesting hardware designs.
–jeroen
via: Index of /pdf/microCornucopia.
Posted in Assembly Language, BitSavers.org, C, C++, Delphi, Development, History, Pascal, Software Development, Turbo Assembler, Turbo Pascal, x86 | Tagged: computer, software, technology, wonderful magazine | 2 Comments »
Posted by jpluimers on 2013/01/20
On my interest list: game written in Delphi and now being ported to FreePascal under Lazarus for multi-platform reasons: Agenda for 2013 | www.SaschaWillems.de.
–jeroen
Posted in Delphi, Development, FreePascal, Lazarus, Pascal, Software Development | 9 Comments »
Posted by jpluimers on 2013/01/17
The PDF Archive at bitsavers.org has recently put online these raster image PDF scans from Turbo Assembler/Debugger (1993/1994) and Borland C++/Object Windows Library (1993)
Remnants of the past, usefull for RAD Studio, Delphi and C++ Builder developers wanting to know a bit of history (: Read the rest of this entry »
Posted in Assembly Language, BitSavers.org, Borland C++, C, C++, Delphi, Development, History, Pascal, Software Development, Turbo Assembler, Turbo Pascal, x86 | Tagged: assembler version, borland C++, computer, object windows library, programmers guide, software, technology, turbo assembler | 2 Comments »
Posted by jpluimers on 2013/01/08
When developing in multiple languages, it sometimes is funny to see how they differ in compiler oddities.
Below are a few on const examples.
Basically, in C# you cannot go from a char const to a string const, and chars are a special kind of int.
In Delphi you cannot go from a string to a char. Read the rest of this entry »
Posted in .NET, ASCII, C#, C# 1.0, C# 2.0, C# 3.0, C# 4.0, C# 5.0, Delphi, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Development, Encoding, Software Development, Unicode | Leave a Comment »
Posted by jpluimers on 2012/12/07
While developing x64 applications, most Windows development tools are actually running in x86 mode, and use an intermediate x64 layer to debug the x64 process even for local debugging.
For Visual Studio 2008 and up, this is msvsmon.exe (for Delphi XE2 and up it is PAServer.exe for remote debugging or [WayBack] dbkw64_16_0.exe for local debugging, other tools use a similar mechanism).
The fun thing with Visual Studio is that when msvsmon.exe fails to load locally, you get a misleading error message:
[Microsoft Visual Studio]
Error while trying to run project: Unable to start debugging.
The Microsoft Visual Studio Remote Debugging Monitor has been closed on the remote machine.
[OK]
I found two workarounds myself :
- Kill msvsmon.exe if it is running but Visual Studio cannot talk to it
- Restart Visual Studio if it cannot start msvsmon.exe
I learned the why from Steve Steiner: he posted the StackOverflow answer explaining msvsmon.exe is also used for local x64 debugging.
Delphi XE2 and up sometimes have a similar cryptic message (I forgot to jolt it down, next time I come across it, I will edit this blog post) and usually killing PAServer.exe or dbkw63*.exe or restarting the IDE solves it.
–jeroen
via:
Posted in .NET, Debugging, Delphi, Delphi x64, Development, QC, Remote Debugging, Software Development, Visual Studio 11, Visual Studio 2008, Visual Studio 2010, Visual Studio and tools | Leave a Comment »
The Wiert Corner - irregular stream of stuff 