First commit 19/07/1998

CDopping/jpg3s/WHATS.NEW

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+JPEG Component Library Version 1.5 Release Notes
+================================================
+
+This is version 1.5 of MWA Software's popular JPEG Component Library. 
+New in this release:
+
+1. This release is primarily for Delphi 4 support and to ensure a common 
+software base is maintained.
+
+2. Two new methods "LoadPictureFromResource" and "LoadPictureFromResID" 
+are provided so that JPEG images can be packaged with a program as 
+resources and then loaded at run-time. This can save considerable space 
+compared with loading an image into TImage at run-time. See the help for 
+information on how to use this feature and the Viewer Demo application, 
+which includes a JPEG resource in its about box.
+
+3. The Delphi 3 version should now install into the IDE without 
+generating a "A Device Attached to the System is not Working" error 
+message. This was due to the components having been compiled on a system 
+with Quick Reports Professional installed. This error message was 
+experienced by users that used the standard version shipped by Borland.
+
+New features in Version 1.4:
+
+1. Support for C++Builder 3.0. The component library now also supports 
+C++Builder 3.0. The functionality is identical to the other versions 
+and a common source base is still maintained.
+
+2. No DLL required for Delphi 3, and all versions of C++Builder. 
+Version 1.3 required a separate dll for the JPEG compression software. 
+This is no longer true for Delphi 3 and C++Builder. By default the 
+JPEG software is linked into your program - dll support is still 
+available as a command line option.
+
+3. Dynamic dll loading. The Delphi 1 and Delphi 2 versions now load 
+the JPEG dll dynamically. This enables a more meaningful error message 
+to be returned if the library cannot be found. The version 1.3 static 
+load is still available as an option.
+
+4. A new visual component - TDBJPEGImage has been provided. This is a 
+data aware descendant of TImage that stores images in a database blob 
+field using JPEG compression.
+
+5. Quick Reports support: with Quick Reports version 1, the 
+TDBJPEGImage may be included on a report. For version 2, a new 
+component TQRJPEGImage is provided so that you can print JPEG images 
+direct from a database.
+
+Bug Fixes:
+---------
+
+1. Parameters to TStream.Seek in TJPEGCompressor.SkipInputBytes now 
+the correct way round :(    Why didn't Borland make the "ORigin" 
+parameter an enumerated type then this typo would have been a compile 
+time error!
+
+2. The error code returned from PlayEnhMetaFile is now returned in the 
+error messsage
+
+3. The decompressor now has a property (ColoursIn8bitMode) that allows 
+the user to  specify the actual numbers of discrete colours in the 
+image when decoding to a 256 colour image. This used to be 256. 
+However, a lower number can avoid a colour cast especially with Blank 
+and White images encoded as full colour images. The default is now 64.
+
+4. When the buffer size is changed the buffer will now be freed and 
+reallocated.
+
+5. An event handler for warning messages has been added.
+
+6. You should now be able to correctly save JPEG images when working 
+in the IDE  and want to save an image as a JPEG at design time (but 
+only when the image  was loaded from a JPEG source - the IDE cannot be 
+used to convert JPEG's to  bitmaps, but it can be used to convert from 
+JPEGs to bitmaps.
+
+7. OnProgressReport now spelt correctly! Note that uses upgrading from 
+earlier versions will experience an error message when loading 
+projects that use the JPEG Component Library reporting that the mis-
+spelt property name cannot be found. Ignore this error and manually 
+direct the "OnProgressReport" to its event handler.