Archive for the ‘Delphi XE6’ Category
Posted by jpluimers on 2014/08/19
Since this did not make it to DelphiFeeds yet: I’ve seen the function PaletteFromDIBColorTable in Graphics.pas go back as far at least until Delphi 2006, and references on the web as far back as Delphi 4.
So: this bug is old, but as it is a security one, make sure you patch soon.
For Delphi XE6, download 29913 BMP Buffer Overflow hotfix – Delphi, C++Builder, RAD Studio XE6.
For older Delphi versions, read this piece that was adapted from the EDN article Delphi and C++ Builder VCL Library Buffer Overflow:
For users of prior versions of Delphi and C++Builder: these steps should be followed to modify the VCL source code and add it to your application.
For each application:
- Add the modified Edit Vcl.Graphics.pas or Graphics.pas or Borland.Vcl.Graphics.pas to your project
- For C++Builder: Under Project | Options | Packages | Runtime Packages, set “Link with runtime packages” to false
- Rebuild your application
Once for the native VCL and .NET VCL:
- Note: Variable names and scoping might be slightly different depending on your product version.
- Edit Vcl.Graphics.pas or Graphics.pas or Borland.Vcl.Graphics.pas
- Locate the function PaletteFromDIBColorTable.
- Add the following code just before the line assigning a value to Pal.palNumEntries when the DIBHandle = 0
if ColorCount > 256 then
InvalidGraphic{$IFNDEF CLR}@{$ENDIF}SInvalidBitmap;;
–jeroen
via Delphi and C++ Builder VCL Library Buffer Overflow.
Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Delphi 8, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Software Development | Tagged: Buffer Overflow, Delphi, Delphi versions, vcl | 5 Comments »
Posted by jpluimers on 2014/08/12
In the With Statement series:
Lars Fosdal – Code Rants
The dreaded with…
Debugging today, I found another gotcha.
In this case, both Self and DisconnectedClient has a property named ClientIdentifier.
Note the difference for the mouse-over and the evaluation.
–jeroen
Read the rest of this entry »
Posted in Appmethod, Borland Pascal, Delphi, Delphi 1, Delphi 2, 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, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Pascal, Software Development, Turbo Pascal, With statement | Leave a Comment »
Posted by jpluimers on 2014/08/04
Short answer: do not use the GlobalContainer.
Long answers are in this Spring4D thread: How is the GlobalContainer intended to be used? Are there important don’ts? – Google Groups.
Especially read this message by Stefan Glienke that shows you to setup your main program without using GlobalContainer at all.
Note that this doesn’t mean you should avoid a container at all.
Background information:
–jeroen
Posted in Delphi, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE5, Delphi XE6, Development, Software Development, Spring4D | 5 Comments »
Posted by jpluimers on 2014/07/19
Though fully justified text is most often in print, and not much in user interfaces any more, this might come in useful one day (it is based on the GDI functions TextOut and SetTextJustification):
David Millington Posted: Have you ever wanted to draw fully justified text ie, text that adheres to both the left and right sides of the destination rectangle? It’s more complicated than it seems, and there’s definitely no inbuilt support in the VCL. But here’s how to do it, including an open-source unit you can drop into your applications and use.
Drawing fully justified text to a canvas | Parnassus – Delphi Consulting & Plugins.
–jeroen
via:
Posted in Delphi, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 7, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2014/05/05
I learned something new today (thanks Vin Colgin) the Delphi Design-Time Component Name is Limited to 63 characters.
Uwe Raabe found out that this an Object Inspector thing due to this constant in DesignIntf.pas:
const
MaxIdentLength = 63;
It has been probably there since Delphi 1 and has been documented on-line since at least Delphi 2007.
I remember having had long (like 100+ character) identifiers in source code, but not in the Object Inspector.
Now I know you can’t (:
–jeroen
via: Vin Colgin – Google+ – Delphi: Design-Time Component Name Limited to 63 characters….
Posted in Delphi, Delphi 1, Delphi 2, 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, Delphi XE4, Delphi XE5, Delphi XE6, Development, Software Development | 4 Comments »
Posted by jpluimers on 2014/05/05
There is an interesting G+ discussion thread about generic Dictionaries in Delphi.
It covers the stock TObjectDictionary in the Generic.Collections unit, Spring4D, performance characteristics like O(1), O(log n), etc, and implementation details like fill factors and hashing algorithms.
Worth reading at Steve Maughan – Google+ – TObjectDictionary Advice Needed I’ve been using Delphi for….
Since TObjectDictionary hasn’t changed much since the introduction of generics in Delphi, this discussion is valid for at least Delphi XE and up (and probably Delphi 2010 and 2009 as well).
I’m not sure about these last ones as like Andreas Hausladen, I’m cutting back on the Delphi versions I regularly use, which for now are mainly XE6, XE3, XE and 2007).
–jeroen
Posted in Delphi, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2014/05/02
Posted in Delphi, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 7, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Software Development | 4 Comments »
Posted by jpluimers on 2014/04/22
Years after Allen Bauer and a few others wrote about Delphi MultiCast events, the Spring4D framework now supports MultiCast events on 3 platforms:
Depending on the platform, the minimum required Delphi version is this (the develop branch builds in Delphi XE6):
- Win32: Delphi 2010 and up.
- Win64: Delphi XE2 and up.
- MacOSX: Delphi XE2 and up.
There are plans for support on Mobile platforms, and Spring4D needs help with that:
- The Intel implementation is written in Assembly, and fast.
- The Arm compiler does not allow Assembly language for various reasons.
So there is a need for an ARM solution not based on assembly in the Delphi code, preferably as cross-platform as possible. Read the rest of this entry »
Posted in Delphi, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, QC, Software Development, Spring4D | 1 Comment »
Posted by jpluimers on 2014/04/22
After finding out that Raize Components 6 and Raize Components 5 updates for Delphi XE6 I checked Raize Software‘s latest news page and was glad to see that these also got updates:
The only one not yet having XE6 support is this one:
–jeroen
via: Raize Software Developer Tools.
Posted in Delphi, Delphi XE6, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2014/04/22
Just found out that a new version of Raize Components 6 with Delphi XE6 support got released.
Raize Components 6 actually supports Delphi 2009 through XE6 (and C++ Builder and RAD Studio).
Older Delphi versions are also supported by older Raize Component versions, as Ray Konopka posted last year:
via Raize Software Support Forums • View topic – Installing multiple versions of the Raize Components.
(In the above quote, I included the links to the various trial versions).
There is also the famous Demo program download RCDemo.zip and nice videos:
via Raize Components Demo/Trial Edition.
For the dot version nitpickers, here are the current versions as of writing: Read the rest of this entry »
Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 5, Delphi 6, Delphi 7, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Software Development | 3 Comments »
The Wiert Corner - irregular stream of stuff 