Delphi Tutorial

TPNGImage is a complete Pascal (Delphi) library for handling Portable Network Graphics image. It’s now fully supporting semi transparency, and lots of other features.

Some of the features:

• Disable use of delphi vcls is easy as changing a trigger (see showcase 4).
• The chunks engine allows upgrades by registering new chunk types to include new features
• Full cyclic redundancy check for all the chunks
• Full access to all the data from the chunks
• Several derived classes from TChunk to obtain different information such as text keyword and more
• Gamma chunk is used to change the image gamma to be displayed as when it was encoded.
• No need for any external files, everything is compiled into your exe project
• Full comented source code and also well written.
• Can read all the images from the official PNG test suite (see showcase 2).
• Ability to assign data from a tbitmap or bitmap handle
• The PNG images may also be saved
• The encoder is optimized to create really small final images when saving. (Actually, check it out, it compresses better than Photoshop 6 and Paint Shop* !!!!)
• No chunk is lost when loading an image
• Any partial transparent images are supported (see showcase 1)
• Bit transparency (tbitmap like) is now supported
• Trigger to disable use of Delphi VCL
• Full speed when loading and saving.
• Provides access to the image data and for the transparency alpha data.
• Complete help file using HTML help

Homepage: http://pngdelphi.sourceforge.net/
Download: pngdelphi/pngimage.zip
File Size: 282 KB
Delphi Version: Delphi 6 – Delphi 2007
Source: None

This entry was posted on Friday, February 1st, 2008 at 11:00 am and is filed under Freeware, Graphics. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.