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Modifying the New Submenu
The File menu in a file system folder contains a New submenu that, by default,
includes the Shortcut and Folder commands. These commands allow the user to
create new shortcuts and folders within the current folder. The New submenu can
also include other nondefault commands that let the user create new files of
various types within the current folder, such as sound files, text files, and
bitmap files. For example, the New submenu might include a Sound command that
creates a .WAV file in the current folder.
If your application creates a type of file that the user may want to create
from within a file system folder, you should consider adding a command for it to
the New submenu. For example, suppose you have created a graphics application
that creates files with the .XYZ filename extension. You could add a command,
such as XYZ Picture, that creates a new .XYZ file or launches your application
and opens a new .XYZ file for editing.
You add a command to the New submenu by including a ShellNew key below the file association key for your filetype. When the system needs
to create the New submenu, it searches through the file association entries for
instances of the ShellNew key. When it finds an instance of ShellNew, the system retrieves the string associated with the application identifier
key (xyzfile) and adds the string to the New submenu as a new command. Note that
an Open command must be registered below the application identifier key;
otherwise, the system does not add the Open command to the New submenu.
The following example shows the registry entries needed to add the XYZ Picture
command to the New submenu.
HKEY_CLASSES_ROOT
.xyz="xyzfile"
ShellNew
NullFile=""
.
.
.
xyzfile="XYZ Picture"
shell
open
command="C:\XYZ\XYZAPP.EXE %1
The data names for the ShellNew key specify the method to use to create a new file of the type designated by
the filename extension. There are four possible data names and values for the ShellNew key.
Data name
| Value
| Description
| NullFile
| ""
| Creates an empty (null) file. If this data name is specified, Data and
FileName are ignored.
| Data
| binary-value
| Creates a file that contains the data specified by binary-value. This data name is ignored if either NullFile or FileName is specified.
| FileName
| path-name
| Creates a copy of the file specified by path-name. This data name is ignored if NullFile is specified.
| Command
| path-name
| Executes the command specified by path-name when the file is created. For example, the command might start a wizard.
|
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