BRS

Applications in Delphi and BCB > Data Compress > Custom Formats

Description

BitCab is a bitmap compressor/cabinet program. It is a simple program not intended to compete seriously with the 'industrial strength' file compressors. However it is a little different, being designed only for creating and handling compressed bitmap cabinet files (BMPCab).

Compression is often better than many general purpose 'zip' programs and decompression reasonably quick. However it does depend on the color complexity of the bitmap. Getting a cabinet of less than 10% of the total bitmaps size isn't unusual.

The compressed bitmap doesn't appear to be damaged in any way and competes with a PNG file in size.

Informations

• Status: Fully functional
• Source: None
• Size: 207kB

Platforms: ME, W95, W98, XP,

Components > Graphics > Just Images

Description

ModImage extends an image graphic control by introducing picture styles (Centered, Normal, Offset, Proportional, Stretched and Tiled). It can be moved with a mouse and can show a colored border and a different color when the control has focus.

HasFocus and FitSize added to properties to help when multiple controls are used and when resizing.

Not known which versions of Delphi it will work with but certainly Delphi 7.

Informations

• Status: Fully functional
• Source: Included
• Size: 260kB

Platforms: D5, D6, D7

Applications in Delphi and BCB > Security > Data Remove

Description

RightDelete is a simple but potentially very powerful secure file deletion application. It is used from the Explorer context menu or by dropping files onto or copying files and pasting them to a desktop shortcut link. As far as I know, it should run in all flavours of Windows.

File deletion is achieved using the US DoD 5220 compliant seven pass method, ie overwriting the file content with $00, $ff, $00, $ff, $00, $ff, random(256). At each overwrite, buffers are flushed to disk. In addition, the file is renamed at the start of the process and before final deletion using random file names. At the end of this process the file is then actually deleted from the disk.

Informations

• Status: Fully functional
• Source: Included
• Size: 176kB

Platforms: Vista, W7, XP,

Components > Misc. Effects > Animation

Description

Animator is a fairly useless by very entertaining component that is used to animate a form or the controls on the form. You can animate several controls and/or make one control move a number of times. You can set the movements at design time, use a script file or call MoveControl to make the moves.

Informations

• Status: Fully functional
• Source: Included
• Size: 2kB

Platforms: D3

Components > Security > Crypting Other

Description

TCyptZLib is derived from TCryptFile, a fast file encrypt/decrypt component, with ZLib stream compression added to further garble the file.

Informations

• Status: Fully functional
• Source: Included
• Size: 3kB

Platforms: D3

Components > Graphics > Other

Description

TImage descendant that can save text with a graphic in a single modified file and load both graphic and text if required. The graphic can be shown proportionally correct using either the vertical or horizontal axis set at design time as the ruling axis.

Informations

• Status: Fully functional
• Source: Included
• Exe demo: included
• Size: 347kB

Platforms: D3

Components > Tools > Tools

Description

TInTex is a string holder designed to hold text inside the exe file for use during run time. There are other methods of achieving a similar result but TInTex is simple to use and understand, small and does a little more than just hold strings.

Informations

• Status: Fully functional
• Source: Included
• Size: 2kB

Platforms: D3

Code Samples > Samples > Multimedia And Graphics

Description

Getting a large JPEG loaded into a TImage component can sometimes be very slow. Think about decompressing a 5.5Mb file to 24Mb of data and getting that into the image and you can understand why. Try resizing a large multi_MB JPEG image to a thumbnail using standard resampling or resizing techniques and see just how long it takes.

In order to reduce that time, I've been delving into the use of the JPEG Scale option which, with a tweek or two, can considerably improve that time. There are a few items about it on the net but I believe it deserves more prominence.

The attached simple application is my offering on the subject. Have a look at the code to see how Scale is used.

Informations

• Status: Fully functional
• Source: Included
• Size: 278kB

Platforms: D7