Archive for the ‘Delphi XE2’ Category
Posted by jpluimers on 2013/05/29
In pre-Galileo versions of Delphi it was easy to run a .BAT or .CMD file as a main project file: just press F9.
Thanks to iManBiglary for posting how to do this in modern Delphi versions. Paraphrased:
Add the file path to cmd.exe (easieist is to add $(ComSpec) which expands the %ComSpec% environment variable) in the tools menu, with /c$EDNAME as the parameter.
In addition, you can tell the IDE to save your file before running the external tool with the $SAVE macro
One of the things you can do with this is add a project containing a batch file that starts to assemble your build results to create a deployment set.
–jeroen
via: Run batch file from Delphi IDE – Stack Overflow.
Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2013/05/24
Every once in a while an AV in Delphi manifests itself in a very odd way.
Usually it is refactoring, code completion or any of the ‘insight’ features doing odd things.
This time, it got me into a Product or License Validation Error | General:
Product or License Validation Error
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Your Embarcadero product or license can’t be validated.
If you see this page when you’re using a valid license and official version of the software, please submit an installation support case for further assistance.
If you need a trial license and official trial software download, visit our Trial Downloads page.
To purchase a product license and receive a certified download, please see our How to Buy page.
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Too bad the error hard-quits Delphi, thereby loosing all your work since the last save. Even more reason to safe often.
None of the reasons mentioned in Starting Delphi or C++ Builder results in Product or License Validation Error applied.
Restarting Delphi XE2 solved the problem.
–jeroen
Posted in Delphi, Delphi XE2, Development, Software Development | 7 Comments »
Posted by jpluimers on 2013/05/22
On my research list (Thanks Uwe!): DataSnap in the Cloud – DelphiFeeds.com.
It shows you how to do DataSnap from the Azure clound, including getting some of the default Delphi database demos to work on SQL Server (erm, SQL Azure).
–jeroen
Posted in Delphi, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2013/05/15
It is unwise to pass objects allocated in one framework over a DLL boundary to a different framework.
In the case of Using C dll in delphi return nothing, someone tries to pass an Interface to some memory in the C side over to Delphi.
Unless that interface is COM based, don’t do that!
In a more general way: don’t pass memory allocated on the DLL side over to the client side, no matter what kind of client you have.
From the DLL, either pass simple types, or fill buffers allocated at the client side.
Edit:
There was a nice Delphi DLL return string from C# … .NET 4.5 Heap Corruption but .NET 4.0 works? Explain please? – Stack Overflow question explaining in detail what to do for strings in a specific case: use the COM heap on the Delphi side using CoTaskMemAlloc (actually it uses the OLE task memory allocator as the Old New Thing explains).
–jeroen
via: Using C dll in delphi return nothing – Stack Overflow.
Posted in .NET, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, 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, Development, Software Development | 5 Comments »
Posted by jpluimers on 2013/05/14
I had some notes on Delphi WSDL and SOAP peculiarities somewhere, but I misplaced them.
Luckily, I found some links that explain most of my notes well:
–jeroen
Posted in Conference Topics, Conferences, Delphi, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Development, Event, SOAP/WebServices, Software Development | Leave a Comment »
Posted by jpluimers on 2013/05/02
for my link archive:
–jeroen
Posted in .NET, C#, Delphi, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | 1 Comment »
Posted by jpluimers on 2013/05/01
This is more elaborate English version of a short Dutch message I recently sent to explain the differences between VCL and FMX:
Do not regard FMX as a replacement for VCL: they are different kinds of frameworks.
VCL is a wrapper around Windows Controls. In itself, it has not much functionality: it exposes the underlying Windows functionality. The exception are data aware controls that provide basic functionality for writing data aware applications. There is a huge 3rd party market for extending VCL support, for instance providing extra Windows functionality, enriching data aware behaviour (look at all those fancy data aware grids), and many more.
FMX is the FireMonkey X-platform framework. Major functionalities are vector based 2D, 3D drawing and controls, and support for styles and composition.
When introducing FMX in Delphi XE2, Embarcadero also introduced a new way of data binding that is shared with FMX and VCL. FMX extends this a bit to some basic data aware controls.
Gone are most of the platform specific features like drag & drop, full blown Windows Shell ListViews, etc. There are some controls that manifests themselves differently on each supported platform (like Pickers), but most of that is currently left to the 3rd party FMX component market.
So if you want FMX to replace VCL, then be prepared for quite some shopping in the 3rd party market.
CLX tried to be a full blown cross platform VCL replacement, but that didn’t work very well.
–jeroen
Posted in Delphi, Delphi XE2, Delphi XE3, Delphi XE4, Development, FireMonkey, OS X FMX, Software Development | Tagged: component market, data binding, fmx, software, technology, vcl, windows controls | 1 Comment »
Posted by jpluimers on 2013/04/24
So I won’t forget, as the [WayBack] static in different languages varies in meaning:
[WayBack] Static on class methods makes them assignment compatible with plain old function pointers.
Thanks Moritz Beutel for initially posting this.
–jeroen
via:
related:
- [Archive.is] Facebook – Delphi developer: static class methods
- [WayBack] Delphi 2007: Methods; Class Methods:
Like class methods, class static methods can be accessed without an object reference. Unlike ordinary class methods, class static methods have no Self parameter at all. They also cannot access any instance members. (They still have access to class fields, class properties, and class methods.) Also unlike class methods, class static methods cannot be declared virtual.
Methods are made class static by appending the word static to their declaration.
Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | 5 Comments »
Posted by jpluimers on 2013/04/17
Some notes if I ever want to do something like this.
In this case I worked around it by having the Items include different text (since I had object pointers in the TStrings anyway) so I could stick to the csDropDown Style.
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Some links if people actually want to try this (you probably shouldn’t as it is way too much work).
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–jeroen
via: delphi – How to simulate Windows Theme behaviour when TComboBox uses csOwnerDrawFixed or csOwnerDrawVariable? – Stack Overflow.
Posted in Delphi, Delphi XE2, Delphi XE3, Development, Software Development | 3 Comments »
Posted by jpluimers on 2013/04/10
For my research queue:
I should look at the below ConnectionStrings to access dBase with ADO from Delphi, If I ever need to do that.
Thanks Cromulent for asking, Nelson for editing and Pieter for answering:
Driver={Microsoft dBASE Driver (*.dbf)};DriverID=277;OLE DB Services = -1;Extended Properties=dBase IV;Dbq=c:\mypath
doing operations like ADOTable1.Open are very fast (good) but GetIndexNames returns nothing (bad).
Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=dBASE IV;OLE DB Services=-1;Data Source=c:\mypath
doing operations like ADOTable1.Open are exceedingly slow (bad) while GetIndexNames does return index names the way it should (good).
How do I get both speed and the index info via ADO for the dBase tables?
“We use the following connection string which works really well.”
Provider=MSDASQL.1;Persist Security Info=False;Extended Properties="Driver={Microsoft Visual FoxPro Driver};UID=;SourceDB=c:\mypath;SourceType=DBF;Exclusive=No;BackgroundFetch=Yes;Collate=Machine;Null=Yes;Deleted=Yes;"
–jeroen
via Delphi + ADO + dBase – Stack Overflow.
Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 5, Delphi 6, Delphi 7, Delphi XE, Delphi XE2, Delphi XE3, Development, Software Development | 8 Comments »
The Wiert Corner - irregular stream of stuff 
TComboBoxStyleHook. – David Heffernan Sep 9 at 13:13Business Layergives me aTStringswith theObjectsfilled (it is pre-Delphi-2009, so no generics yet). That’s why I can get out theTextsou easy (: First I need to finish about a week of .NET work though. – Jeroen Wiert Pluimers Sep 10 at 16:03TExtComboBoxand its own VCL styles feature. – Warren P Sep 10 at 20:45Objectinstance references are already in theTStrings, I wrote a small function to return a new temporaryTStringsthat has the string values with the captions I needed and keep theObjectreferences. Since it has the same item ordering, and sameObjectreferences I don’t need any mapping at all. Just need to make sure I free the newTStringsat the right moment. – Jeroen Wiert Pluimers Sep 10 at 21:24