ContentsWhat is TCompLHA?
What can it do?
New in V10.0
Download a copy
September 2012: TCompLHA v10.0 and TCompress v10.0
now add support for RAD Studio XE3 (Delphi and C++ Builder) including 64-bit platforms. This is a chargeable upgrade
for users of all earlier versions of TCompLHA.
Note that the download does not include object files for C++Builder, Kylix, Delphi.Net, or for Delphi compilers earlier than D2009. For those compilers, please
evaluate using the Delphi DCUs provided and obtain a full source license to use with your compiler, rather than a standard license..
Download it here.
November 2011: TCompLHA v9.3=% and TCompress v9.3=% now adds support for RAD Studio XE2 ( Delphi and C++Builder). No source changes. Free upgrade for existing TCompLHA v9 registered users - just download the latest component file. Note that we no longer supply trial object files for C++Builder, Delphi-dotNet or Kylix. For those compilers, please test using the Delphi DCUs provided and obtain a full source license to use with your compiler.
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And don't forget: TWebCompress V2.0 our full-source freeware web compression component which uses TCompLHA.
Note: If you are looking for general purpose compression capabilities, including compression of database blobs, strings or data in memory, single files and stream-to-stream compression, see our TCompress component set.
TCompLHA helps you create and manage archives compatible with the popular freeware LHArc and LHA utilities (these archives can also be processed by the popular WinZip program if you have LHA). Simple one-step methods such as Scan, Compress, Expand, Delete and Verify make archive management very easy. In addition it includes the TSegLHA component which allows for the creation of segmented (e.g. multi-disk) archives.
Key properties such as ArchiveName, CompressionMethod, Confirm, and FilesToProcess provide easy control over how files are processed, including a fully customizable user interface.
TCompLHA comes with an extensive demonstration, source examples and comprehensive help and keyword files. Component source is optionally available for registered users.
Included in the TCompLHA set are:
|TCompLHA component LHArc/LHA multi-file archive manager component|
|TSegLHA component Segmented archive and backup manager component|
|TCompLHAStream component Full-source TStream derivative for automatic compression to/from any stream|
|LHADEMO extensive full-source drag-and-drop archive manager demonstration|
|SFX and MAKEEXE example projects for making self-extracting/self-installing archives|
|SEGDEMO and ADDRESS full source applications showing how to create segmented archives, and how to add easy backup/restore functions to any database application|
TCompLHA can be used to easily compress or expand data in archives compatible with the DOS/UNIX LHArc and LHA utilities. Many other utilities, such as WinZip, can also be configured to process archives created by this component. (Note: LHArc/LHA cannot read or write archives or files over 2GB in size; TCompLHA does so by using with an extended header format only when required.)
The Confirm property allows you to turn on "standard" user interaction for archive processing operations the messages used can be readily customised by changing the ConfirmMessages property.
Most developers might only need to drop a TCompLHA component on a form, set a couple of properties and call its Scan, Compress or Expand methods in order to create and work with their own multi-file archives. Others might use the advanced handling provided by the OnCheckFile and OnAfterProcessed events to provide advanced user interface handling and file management.
Those requiring segmented archives or dedicated backup features in their applications might use the TSegLHA component instead.
Download TCompLHA V10.0 today! (548KB) (<=== this link will do it)
Come back soon to find about about new TCompLHA developments.
TCompLHA Registration and License fee: $US99
Full source code of the CompLHA unit is also available for an additional $US59, and the SegLHA unit for $US59.
On registering, you will receive:
We accept registration via Mastercard, Visa or bank draft/electronic transfer. You can register online using our secure server. Alternatively, just print and fax or email the handy form in the Registration section of the CompLHA.hlp file.
New in TCompLHA v9.3
New in v9.2: Added support for Delphi 2011 and C++ Builder 2011 (RAD Studio XE).
New in v9.1: Added support for Delphi 2010 and C++ Builder 2010 (RAD Studio 2010).
New in v9.0: Added support for Delphi 2009 and C++ Builder 2009 (RAD Studio 2009).
If you bought source units for these versions, the upgrade fee above includes a source upgrade for any units you own.
For proof of registration, please supply your existing RegName and RegNumber. For proof of source code ownership, please supply the first four source lines of each unit you own.
To order your upgrade or to take advantage of these special offers, use our online registration form or offline ordering methods..
"...we were extremely impressed with TCompLHA's performance even on files that are considered difficult to compress, such as EXE files... we would highly recommend it to anyone who requires a highly efficient and cost effective data compression solution for your programs."
Extract from the TCompress and TCompLHA review by The Think Tank.
"I found both sets of components to be very easy to use and would recommend them to anyone who needs this functionality."
Extract from the TCompress and TCompLHA review at www.Delphi32.com.
"'TCompLHA is a very intuitive tool, and incredibly simple to use. And the online help file is excellent. As a developer, I need tools that work as I expect them to, with intelligent defaults, and don't take hours to figure out. TCompLHA just drops into the program and painlessly does its job."
Al Brouillette (albrov @ worldnet.att.net)
"First let me thank you for one of the most well crafted shareware Delphi components I have seen. I greatly appreciate those who have gone the extra step to turn a "program" into a "product....."
Integral Scientific Software, Fort Collins, CO 80525-1799, USA.
"It works absolutely great, even beyond my expectations. Please place me on your notification list for any enhancements to your compression components. You have a very pleased customer, and a superb product here the world needs to know about it."
Dave Culbertson, Custom Computers Inc (dave.culbertson @ chicopee.com)
"This is good. This is very good <G>. One very happy camper!"
Adam M. Commander, maker of Shazam Report Wizard (shazam @ halcyon.com)
"I was, and am still, impressed with the level of service you provided. You went out of your way, even before we bought the product, to work with me (by sending code, examples, etc)... and I really appreciate it! Your level of service is extraordinary. I wish that all of the people we dealt with were as accomodating as you."
Tom Bowden (tom @ rheyn.com)
"I must tell you that without your component our backup feature would simply not have been done in time."
Frank Conradie (mcifrank @ iafrica.com)
"Classy stuff! Well-designed, intuitive. I was able to use it without a glance at any help or instructions."
Lou Garner (lou.garner @ lunatic.com)
"Thank you for an exceptional component."
Graham Colwell (teracomc @ mlmpro.com)
"BTW, thanks for a GREAT component! It seems to find its way into almost everything I do, (hence the need to purchase another license for my day job)."
David M Trump (dtrump @ hach.com)
"I was silly enough to try and rescue my schedule by picking up your compression component last week, and guess what... IT WORKED WONDERFULLY!
"Thank you, I absolutely love your component, it saved me a ton of time and helped me get that app out on time."
Phillip D. Clark (phildc @ beetu.com)
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