Two components are provided that enable applications to support Windows Explorer file drag and drop. The components are:

• TPJDropFiles - This windowed component catches files dropped anywhere over its window. It can act as a container for other components.
• TPFormDropFiles - This non-visual component catches files dropped anywhere on its form, including the non-client areas.

Key features of these components are:

• An OnDropFiles event is triggered when files are dropped.
• The names of dropped files are made available through the Files array property. For convenience, the name of the first file is also stored in the FileName property.
• The list of dropped files can be configured to include only files, only folders or all files and folders.
• Dropped folders can be recursed so that all the files and sub-folders in each of the dropped folders are listed.
• Filters can be applied to the dropped files and folders. This is done in one of two ways: (1) by handling the OnFileFilter event and deciding which files and folders to pass through the filter and (2) by linking the drop file component to a special file filter component, derived from the abstract TPJFileFilter. In this case the dropped files are automatically filtered by the filter component. Two filter components are provided: TPJExtFileFilter that filters according to file extensions and TPJWildCardFileFilter that filters using DOS-style wildcards. Developers can create further filter components by deriving from TPJFileFilter.
• The mouse co-ordinates where the files were dropped can be retrieved, as can a reference to any control under the mouse cursor at the time.
• The OnBeforeDrop event can be used to do pre-processing before the files are actually dropped.
• The IsFolder array property tells if an equivalent item in the Files list is a file or a folder.
• The owning window can be brought to the front when files are dropped.
• Some design time assistance is provided by component and property editors.

A Delphi 3-7 OpenHelp compatible help file is supplied. Additionally an a-link keyword file is provided for use with Delphi 6/7.

System information classes and associated global variables. Information is provided via:

• TPJComputerInfo: a static class that provides information about the user's computer.
• TPJSystemFolders: a static class that gets full path of certain system folders.
• TPJOSInfo: a static class that provides information about the Windows operating system including platform, product and edition, service packs, version numbers, product ID etc.
• Global Win32XXX variables: extra variables to those provided by the SysUtils unit that provide extended OS version information on later NT platform OSs.

Extended operating system detection improved in this release: can now detect Windows Vista, XP Tablet and XP Media Center editions, and WOW64 subsystem of 64 bit Windows.

The TPJSysInfo component and a set of functions that were provided in earlier versions of the unit are also included but are now deprecated.

Some OS detection code based on a translation of example C code on MSDN.

Ortus Shell Dialogs Personal Edition v1.5


Get access to the Microsoft® Windows® shell dialogs & wizards from within your applications using this component package!

Ortus Shell Dialogs is a component package for the Borland® developer community containing 12 shell dialog & wizard 'wrapper' components. A context sensitive component help file is included.

• Use the TOrtusShellControlPanel to display the control panel or one of the control panel aplets.
  
• Use the TOrtusShellAbout, TOrtusShellOpenWith, TOrtusShellNewShortcut, TOrtusShellBrowseComputer, TOrtusShellBrowseFolder, TOrtusShellRun, TOrtusShellExitWindows, TOrtusShellDiskFull, TOrtusShellFormatDisk, TOrtusShellProperties and TOrtusShellOrganizeFavorites to launch the corresponding shell dialog.
  

This unit provides a components and various routines for manipulating environment variables. Features include:

• Component and routines to enumerate all available environment variables, get and set values and delete variables.
• Routine to replace a string containing environment variable name references with the values of the variables.
• Routine to create a customised environment block for passing to child processes.

A help file is supplied which integrates into the Delphi IDE and provides help on all the component and routines. The help file includes demo examples.

From v1.1 the component now compiles without warnings with Delphi 6 and 7.
v1.2 fixes bug in reading non-existant environment variables.