readme.txt

来自「Drag files and Drop to delphi forms 0402」· 文本 代码 · 共 62 行

ContextMenuHandlerShellExt

This application demonstrates how to create an advanced Context Menu Handler
shell extension using the TDropContextMenu component.

Description of Context Menu Handlers from MSDN:
  When a user right-clicks a shell object, the shell displays its context menu.
  For file system objects there are a number of standard items, such as Cut and
  Copy, that are on the menu by default. If the object is a file that is a
  member of a class, additional items can be specified in the registry. Finally,
  the shell checks the registry to see if the file class is associated with any
  context menu handlers. If it is, the shell queries the handler for additional
  context menu items.

Even though shell context menu handlers aren't directly associated with drag and
drop, they both use many of the same interfaces, data formats and mechanisms.
Since TDropContextMenu is actually a subset of the TDragDropHandler component,
it requires almost no additional code to implement a shell context menu
handler.
This demo and the TDropContextMenu component are partially based on Delphi's
ActiveX\TRegSvr demo.

To use this demo, compile the project and register the DLL.
You can use one of the following methods to register the DLL:

  - From within the Delphi IDE, select "Register ActiveX Server" from the "Run"
    menu.

  - Use the regsvr32.exe tool provided by Microsoft.
    Execute the following command line:

      regsvr32 ContextMenuHandlerShellExt.dll

  - Use the tregsvr.exe tool provided by Borland.
    Execute the following command line:

      tregsvr ContextMenuHandlerShellExt.dll

Once the DLL has been registered, you should be able to right click on any DLL
file and choose "COM Server" from the context menu. You can either register or
unregister any COM servers (or ActiveX controls) contained in the DLL. This demo
is based on Delphi's TRegSvr demo and provides the same functionality as
Borland's TRegSvr utility.

You can use one of the following methods to unregister the DLL once you are done
with it:

  - From within the Delphi IDE, select "Unregister ActiveX Server" from the
    "Run" menu.

  - Use the regsvr32.exe tool provided by Microsoft.
    Execute the following command line:

      regsvr32 /u ContextMenuHandlerShellExt.dll

  - Use the tregsvr.exe tool provided by Borland.
    Execute the following command line:

      tregsvr -u ContextMenuHandlerShellExt.dll