656 lines
17 KiB
C++
656 lines
17 KiB
C++
|
/**********************************************************************/
|
||
|
|
/** Microsoft Windows NT **/
|
||
|
|
/** Copyright(c) Microsoft Corp., 1992 **/
|
||
|
|
/**********************************************************************/
|
||
|
|
|
||
|
|
/*
|
||
|
|
uix.hxx
|
||
|
|
This file contains the class declarations for the classes related
|
||
|
|
to NETUI Application Extension management.
|
||
|
|
|
||
|
|
There are three categories of objects used to manipulate application
|
||
|
|
extensions:
|
||
|
|
|
||
|
|
Objects derived from UI_EXT represent the actual extensions.
|
||
|
|
There is one such object for each extension loaded into the
|
||
|
|
application. All extension manipulation (activate, refresh,
|
||
|
|
unload, etc) occur through these objects.
|
||
|
|
|
||
|
|
Objects derived from UI_EXT_MGR represent extension managers.
|
||
|
|
There is at most one extension manager "active" at any given
|
||
|
|
time. The extension manager is responsible for maintaining
|
||
|
|
the list of extension objects and sending any "broadcast"
|
||
|
|
notifications to each object.
|
||
|
|
|
||
|
|
Objects derived from UI_EXT_MGR_IF represent extension manager
|
||
|
|
interfaces. These objects act as an interface between the
|
||
|
|
extension manager and the application. Whenever the extension
|
||
|
|
manager needs to interact with the application (such as retrieving
|
||
|
|
the list of available extensions) it is done through the interface
|
||
|
|
object.
|
||
|
|
|
||
|
|
The class hierarchy is structured as follows:
|
||
|
|
|
||
|
|
BASE
|
||
|
|
|
|
||
|
|
+---UI_EXT
|
||
|
|
| |
|
||
|
|
| +---UI_BUTTON_EXT
|
||
|
|
| |
|
||
|
|
| +---UI_MENU_EXT
|
||
|
|
| |
|
||
|
|
| \---UI_TOOLBAR_EXT
|
||
|
|
|
|
||
|
|
+---UI_EXT_MGR
|
||
|
|
| |
|
||
|
|
| +---UI_BUTTON_EXT_MGR
|
||
|
|
| |
|
||
|
|
| +---UI_MENU_EXT_MGR
|
||
|
|
| |
|
||
|
|
| \---UI_TOOLBAR_EXT_MGR
|
||
|
|
|
|
||
|
|
\---UI_EXT_MGR_IF
|
||
|
|
|
||
|
|
NOTE: At the time this module was written (19-Oct-1992) only the
|
||
|
|
MENU derivitives of UI_EXT and UI_EXT_MGR were implemented.
|
||
|
|
The BUTTON and TOOLBAR class are shown in the above hierarchy
|
||
|
|
for illustration purposes only.
|
||
|
|
|
||
|
|
To integrate extension support into an application:
|
||
|
|
|
||
|
|
0. Subclass one of the UI_*_EXT classes (such as UI_MENU_EXT)
|
||
|
|
to create an extension class for the particular application.
|
||
|
|
For example, the Server Manager subclasses UI_MENU_EXT into
|
||
|
|
SM_MENU_EXT.
|
||
|
|
|
||
|
|
The class constructor is responsible for loading the DLL,
|
||
|
|
validating the entrypoints, and negotiating the version
|
||
|
|
number.
|
||
|
|
|
||
|
|
The class destructor is responsible for sending any unload
|
||
|
|
notifications to the extension.
|
||
|
|
|
||
|
|
Override all of the pure virtuals in the parent class, such
|
||
|
|
as Refresh() and Activate().
|
||
|
|
|
||
|
|
1. Subclass UI_EXT_MGR_IF to create an interface for the
|
||
|
|
particular application. For example, the NetUI Admin App
|
||
|
|
"framework" subclasses UI_EXT_MGR_IF into AAPP_EXT_MGR_IF.
|
||
|
|
|
||
|
|
Override all of the pure virtuals in the parent class. For
|
||
|
|
example, AAPP_EXT_MGR_IF "thunks" these virtuals over to
|
||
|
|
corresponding ADMIN_APP virtuals.
|
||
|
|
|
||
|
|
2. At an appropriate time in the application, create a new
|
||
|
|
*_EXT_MGR_IF object, then create a new UI_*_EXT_MGR object,
|
||
|
|
giving it the address of the interface object. The two are
|
||
|
|
now bound together.
|
||
|
|
|
||
|
|
3. Invoke UI_*_EXT_MGR::LoadExtensions(). The extensions will
|
||
|
|
be loaded.
|
||
|
|
|
||
|
|
4. At an appropriate time in the application, invoke the
|
||
|
|
UI_*_EXT_MGR::ActivateExtension() method. For example,
|
||
|
|
ADMIN_APP does this in OnMenuCommand() if the menu ID is
|
||
|
|
greater than some specific value (the initial ID delta).
|
||
|
|
|
||
|
|
|
||
|
|
FILE HISTORY:
|
||
|
|
KeithMo 19-Oct-1992 Created.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef _UIX_HXX_
|
||
|
|
#define _UIX_HXX_
|
||
|
|
|
||
|
|
|
||
|
|
#include "base.hxx"
|
||
|
|
#include "slist.hxx"
|
||
|
|
#include "strlst.hxx"
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Forward references.
|
||
|
|
//
|
||
|
|
|
||
|
|
DLL_CLASS UI_EXT; // an extension
|
||
|
|
DLL_CLASS UI_EXT_MGR; // an extension manager
|
||
|
|
DLL_CLASS UI_EXT_MGR_IF; // an extension manager interface
|
||
|
|
|
||
|
|
DLL_CLASS UI_MENU_EXT; // a menu extension
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
NAME: UI_EXT
|
||
|
|
|
||
|
|
SYNOPSIS: This abstract class represents a single instance of an
|
||
|
|
application extension. This generic class is designed
|
||
|
|
to be subclassed into more specific classes, such as
|
||
|
|
UI_MENU_EXT.
|
||
|
|
|
||
|
|
INTERFACE: UI_EXT - Class constructor (protected).
|
||
|
|
|
||
|
|
~UI_EXT - Class destructor.
|
||
|
|
|
||
|
|
QueryVersion - Returns the version number
|
||
|
|
associated with this extension.
|
||
|
|
|
||
|
|
QueryHandle - Returns the DLL module handle
|
||
|
|
of this extension.
|
||
|
|
|
||
|
|
QueryDelta - Returns the menu/control ID delta
|
||
|
|
associated with this extension.
|
||
|
|
|
||
|
|
Refresh - Send a refresh notification to
|
||
|
|
the extension.
|
||
|
|
|
||
|
|
Activate - Activate the extension.
|
||
|
|
|
||
|
|
PARENT: BASE
|
||
|
|
|
||
|
|
HISTORY:
|
||
|
|
KeithMo 19-Oct-1992 Created.
|
||
|
|
KeithMo 26-Oct-1992 Keep the DLL name, in case we need it.
|
||
|
|
|
||
|
|
**************************************************************************/
|
||
|
|
DLL_CLASS UI_EXT : public BASE
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
|
||
|
|
//
|
||
|
|
// The version number this extension supports. This
|
||
|
|
// value is negotiated between the extension and the
|
||
|
|
// application at extension load time.
|
||
|
|
//
|
||
|
|
|
||
|
|
DWORD _dwVersion;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The name of this extension's DLL.
|
||
|
|
//
|
||
|
|
|
||
|
|
NLS_STR _nlsDllName;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The handle to this extension's DLL.
|
||
|
|
//
|
||
|
|
|
||
|
|
HMODULE _hDll;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The menu/control ID delta for this extension.
|
||
|
|
//
|
||
|
|
|
||
|
|
DWORD _dwDelta;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Protected accessors.
|
||
|
|
//
|
||
|
|
|
||
|
|
VOID SetVersion( DWORD dwVersion )
|
||
|
|
{ _dwVersion = dwVersion; }
|
||
|
|
|
||
|
|
APIERR SetDllName( const TCHAR * pszDllName )
|
||
|
|
{ return _nlsDllName.CopyFrom( pszDllName ); }
|
||
|
|
|
||
|
|
VOID SetDllHandle( HMODULE hDll )
|
||
|
|
{ _hDll = hDll; }
|
||
|
|
|
||
|
|
//
|
||
|
|
// Since this is an abstract class, the class constructor
|
||
|
|
// is protected.
|
||
|
|
//
|
||
|
|
// The derived subclass's constructor is responsible for
|
||
|
|
// loading & validating the DLL, negotiating the version
|
||
|
|
// number, and setting the appropriate private data members
|
||
|
|
// in this class.
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_EXT( const TCHAR * pszDllName,
|
||
|
|
DWORD dwDelta );
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
//
|
||
|
|
// The class destructor.
|
||
|
|
//
|
||
|
|
// The derived subclass's destructor is responsible for
|
||
|
|
// sending any appropriate "unload" notifications to the
|
||
|
|
// extension DLL. Note that ~UI_EXT() will perform the
|
||
|
|
// actual FreeLibrary() on the DLL.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual ~UI_EXT( VOID );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Public accessors.
|
||
|
|
//
|
||
|
|
|
||
|
|
DWORD QueryVersion( VOID ) const
|
||
|
|
{ return _dwVersion; }
|
||
|
|
|
||
|
|
const TCHAR * QueryDllName( VOID ) const
|
||
|
|
{ return _nlsDllName; }
|
||
|
|
|
||
|
|
HMODULE QueryDllHandle( VOID ) const
|
||
|
|
{ return _hDll; }
|
||
|
|
|
||
|
|
DWORD QueryDelta( VOID ) const
|
||
|
|
{ return _dwDelta; }
|
||
|
|
|
||
|
|
//
|
||
|
|
// These virtuals must be overridden by the derived subclass(es).
|
||
|
|
//
|
||
|
|
// Refresh() simply notifies the extension DLL that the user is
|
||
|
|
// requesting a refresh. The extension may take this opportunity
|
||
|
|
// to refresh any cached data values.
|
||
|
|
//
|
||
|
|
// Activate() activates the extension (duh...) which will typically
|
||
|
|
// invoke a dialog.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual VOID Refresh( HWND hwndParent ) const = 0;
|
||
|
|
|
||
|
|
virtual VOID Activate( HWND hwndParent, DWORD dwId ) const = 0;
|
||
|
|
|
||
|
|
}; // class UI_EXT
|
||
|
|
|
||
|
|
|
||
|
|
DECL_SLIST_OF( UI_EXT, DLL_BASED );
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
NAME: UI_MENU_EXT
|
||
|
|
|
||
|
|
SYNOPSIS: This abstract class represents a single instance of a
|
||
|
|
menu extension. This must be subclasses to provide
|
||
|
|
application-specific behaviour.
|
||
|
|
|
||
|
|
INTERFACE: UI_MENU_EXT - Class constructor (protected).
|
||
|
|
|
||
|
|
~UI_MENU_EXT - Class destructor.
|
||
|
|
|
||
|
|
Refresh - Send a refresh notification to
|
||
|
|
the extension.
|
||
|
|
|
||
|
|
Activate - Activate the extension.
|
||
|
|
|
||
|
|
MenuInit - Sends a menu init notification
|
||
|
|
to the extension.
|
||
|
|
|
||
|
|
PARENT: UI_EXT
|
||
|
|
|
||
|
|
HISTORY:
|
||
|
|
KeithMo 19-Oct-1992 Created.
|
||
|
|
|
||
|
|
**************************************************************************/
|
||
|
|
DLL_CLASS UI_MENU_EXT : public UI_EXT
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
|
||
|
|
//
|
||
|
|
// The name of the menu item associated with this extension.
|
||
|
|
//
|
||
|
|
|
||
|
|
NLS_STR _nlsMenuName;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Menu handle of the popup menu associated with this extension.
|
||
|
|
//
|
||
|
|
|
||
|
|
HMENU _hMenu;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Private worker method for BiasMenuIds.
|
||
|
|
//
|
||
|
|
|
||
|
|
APIERR W_BiasMenuIds( HMENU hMenu,
|
||
|
|
DWORD dwDelta );
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Since this is an abstract class, the class constructor
|
||
|
|
// is protected.
|
||
|
|
//
|
||
|
|
// The derived subclass's constructor is responsible for
|
||
|
|
// loading & validating the DLL, negotiating the version
|
||
|
|
// number, and setting the appropriate private data members
|
||
|
|
// in this class.
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_MENU_EXT( const TCHAR * pszDllName,
|
||
|
|
DWORD dwDelta );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Protected accessors.
|
||
|
|
//
|
||
|
|
|
||
|
|
APIERR SetMenuName( const TCHAR * pszMenuName )
|
||
|
|
{ return _nlsMenuName.CopyFrom( pszMenuName ); }
|
||
|
|
|
||
|
|
VOID SetMenuHandle( HMENU hMenu )
|
||
|
|
{ _hMenu = hMenu; }
|
||
|
|
|
||
|
|
//
|
||
|
|
// This method recursively applies the specified delta (bias)
|
||
|
|
// to all menu ids in _hMenu.
|
||
|
|
//
|
||
|
|
|
||
|
|
APIERR BiasMenuIds( DWORD dwDelta );
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
//
|
||
|
|
// The class destructor.
|
||
|
|
//
|
||
|
|
// The derived subclass's destructor is responsible for
|
||
|
|
// sending any appropriate "unload" notifications to the
|
||
|
|
// extension DLL. Note that ~UI_EXT() will perform the
|
||
|
|
// actual FreeLibrary() on the DLL.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual ~UI_MENU_EXT( VOID );
|
||
|
|
|
||
|
|
//
|
||
|
|
// These virtuals must be overridden by the derived subclass(es).
|
||
|
|
//
|
||
|
|
// Refresh() simply notifies the extension DLL that the user is
|
||
|
|
// requesting a refresh. The extension may take this opportunity
|
||
|
|
// to refresh any cached data values.
|
||
|
|
//
|
||
|
|
// Activate() activates the extension (duh...) which will typically
|
||
|
|
// invoke a dialog.
|
||
|
|
//
|
||
|
|
// MenuInit() notifies the extension that the app's menu is being
|
||
|
|
// initialized. The extension will typically use this opportunity
|
||
|
|
// to manipulate the extension's menu items.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual VOID Refresh( HWND hwndParent ) const = 0;
|
||
|
|
|
||
|
|
virtual VOID Activate( HWND hwndParent, DWORD dwId ) const = 0;
|
||
|
|
|
||
|
|
virtual VOID MenuInit( VOID ) const = 0;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Public accessors.
|
||
|
|
//
|
||
|
|
|
||
|
|
const TCHAR * QueryMenuName( VOID ) const
|
||
|
|
{ return _nlsMenuName.QueryPch(); }
|
||
|
|
|
||
|
|
HMENU QueryMenuHandle( VOID ) const
|
||
|
|
{ return _hMenu; }
|
||
|
|
|
||
|
|
}; // class UI_MENU_EXT
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
NAME: UI_EXT_MGR
|
||
|
|
|
||
|
|
SYNOPSIS: This class represents an extension manager. It is used
|
||
|
|
to manipulate application extension objects derived from
|
||
|
|
UI_EXT.
|
||
|
|
|
||
|
|
INTERFACE: UI_EXT_MGR - Class constructor.
|
||
|
|
|
||
|
|
~UI_EXT_MGR - Class destructor.
|
||
|
|
|
||
|
|
QueryDelta - Returns the menu/control ID delta
|
||
|
|
to be used for the *next* extension.
|
||
|
|
|
||
|
|
QueryDeltaDelta - Returns the "inter-delta offset".
|
||
|
|
|
||
|
|
LoadExtensions - Load all extensions.
|
||
|
|
|
||
|
|
UnloadExtensions - Unload all extensions.
|
||
|
|
|
||
|
|
RefreshExtensions - Refresh all extensions.
|
||
|
|
|
||
|
|
ActiveExtension - Activate an extension by ID.
|
||
|
|
|
||
|
|
PARENT: BASE
|
||
|
|
|
||
|
|
HISTORY:
|
||
|
|
KeithMo 19-Oct-1992 Created.
|
||
|
|
|
||
|
|
**************************************************************************/
|
||
|
|
DLL_CLASS UI_EXT_MGR : public BASE
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
|
||
|
|
//
|
||
|
|
// This SLIST contains all of the currently loaded extensions.
|
||
|
|
//
|
||
|
|
|
||
|
|
SLIST_OF( UI_EXT ) _slExtensions;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The interface between the manager & the application.
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_EXT_MGR_IF * _pExtMgrIf;
|
||
|
|
|
||
|
|
//
|
||
|
|
// The current menu/control ID delta.
|
||
|
|
//
|
||
|
|
|
||
|
|
DWORD _dwDelta;
|
||
|
|
|
||
|
|
//
|
||
|
|
// This value is added to _dwDelta after each extension
|
||
|
|
// is loaded. This is basically the offset "between" deltas.
|
||
|
|
//
|
||
|
|
|
||
|
|
DWORD _dwDeltaDelta;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
//
|
||
|
|
// This worker function will load a single extension by name.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual UI_EXT * W_LoadExtension( const TCHAR * pszExtensionDll,
|
||
|
|
DWORD dwDelta );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Protected accessors.
|
||
|
|
//
|
||
|
|
|
||
|
|
VOID SetDelta( DWORD dwDelta )
|
||
|
|
{ _dwDelta = dwDelta; }
|
||
|
|
|
||
|
|
VOID SetDeltaDelta( DWORD dwDeltaDelta )
|
||
|
|
{ _dwDeltaDelta = dwDeltaDelta; }
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Subclasses need access to this so that they can iterate extensions
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_EXT_MGR_IF * QueryExtMgrIf( VOID )
|
||
|
|
{ return _pExtMgrIf; }
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Usual constructor/destructor goodies.
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_EXT_MGR( UI_EXT_MGR_IF * pExtMgrIf,
|
||
|
|
DWORD dwInitialDelta,
|
||
|
|
DWORD dwDeltaDelta );
|
||
|
|
|
||
|
|
~UI_EXT_MGR( VOID );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Public accessors.
|
||
|
|
//
|
||
|
|
|
||
|
|
SLIST_OF( UI_EXT ) * QueryExtensions( VOID )
|
||
|
|
{ return &_slExtensions; }
|
||
|
|
|
||
|
|
DWORD QueryDelta( VOID ) const
|
||
|
|
{ return _dwDelta; }
|
||
|
|
|
||
|
|
DWORD QueryDeltaDelta( VOID ) const
|
||
|
|
{ return _dwDeltaDelta; }
|
||
|
|
|
||
|
|
UINT QueryCount( VOID )
|
||
|
|
{ return _slExtensions.QueryNumElem(); }
|
||
|
|
|
||
|
|
UI_EXT * FindExtensionByName( const TCHAR * pszDllName ) ;
|
||
|
|
|
||
|
|
UI_EXT * FindExtensionByDelta( DWORD dwDelta ) ;
|
||
|
|
|
||
|
|
//
|
||
|
|
// These virtuals manipulate the extensions.
|
||
|
|
//
|
||
|
|
// LoadExtensions() causes all extensions to be loaded.
|
||
|
|
//
|
||
|
|
// UnloadExtensions() unloads all loaded extensions.
|
||
|
|
//
|
||
|
|
// RefreshExtensions() sends a refresh notification to all extensions.
|
||
|
|
//
|
||
|
|
// ActivateExtension() activates the extension with the given id.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual UINT LoadExtensions( VOID );
|
||
|
|
|
||
|
|
virtual VOID UnloadExtensions( VOID );
|
||
|
|
|
||
|
|
virtual VOID RefreshExtensions( HWND hwndParent );
|
||
|
|
|
||
|
|
virtual VOID ActivateExtension( HWND hwndParent, DWORD dwId );
|
||
|
|
|
||
|
|
}; // class UI_EXT_MGR
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
NAME: UI_MENU_EXT_MGR
|
||
|
|
|
||
|
|
SYNOPSIS: This class respresents a manager of menu extensions.
|
||
|
|
It is used to manipulate application extension objects
|
||
|
|
derived from UI_MENU_EXT.
|
||
|
|
|
||
|
|
INTERFACE: UI_MENU_EXT_MGR - Class constructor.
|
||
|
|
|
||
|
|
~UI_MENU_EXT_MGR - Class destructor.
|
||
|
|
|
||
|
|
MenuInitExtensions - Sends a menu init notification
|
||
|
|
to all loaded extensions.
|
||
|
|
|
||
|
|
PARENT: UI_EXT_MGR
|
||
|
|
|
||
|
|
HISTORY:
|
||
|
|
KeithMo 19-Oct-1992 Created.
|
||
|
|
|
||
|
|
**************************************************************************/
|
||
|
|
DLL_CLASS UI_MENU_EXT_MGR : public UI_EXT_MGR
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Usual constructor/destructor goodies.
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_MENU_EXT_MGR( UI_EXT_MGR_IF * pExtMgrIf,
|
||
|
|
DWORD dwInitialDelta,
|
||
|
|
DWORD dwDeltaDelta );
|
||
|
|
|
||
|
|
virtual ~UI_MENU_EXT_MGR( VOID );
|
||
|
|
|
||
|
|
//
|
||
|
|
// This virtual manipulates the extensions.
|
||
|
|
//
|
||
|
|
// MenuInitExtensions() sends a menu initialization notifications to
|
||
|
|
// all extensions.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual VOID MenuInitExtensions( VOID );
|
||
|
|
|
||
|
|
}; // class UI_MENU_EXT_MGR
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
NAME: UI_EXT_MGR_IF
|
||
|
|
|
||
|
|
SYNOPSIS: This abstract class represents an interface between an
|
||
|
|
extension manager and the "owning" appliation.
|
||
|
|
|
||
|
|
INTERFACE: UI_EXT_MGR_IF - Class constructor (protected).
|
||
|
|
|
||
|
|
~UI_EXT_MGR_IF - Class destructor.
|
||
|
|
|
||
|
|
LoadExtension - Load a single extension by
|
||
|
|
name.
|
||
|
|
|
||
|
|
GetExtensionList - Returns the list of extension
|
||
|
|
DLLs.
|
||
|
|
|
||
|
|
PARENT: BASE
|
||
|
|
|
||
|
|
HISTORY:
|
||
|
|
KeithMo 19-Oct-1992 Created.
|
||
|
|
|
||
|
|
**************************************************************************/
|
||
|
|
DLL_CLASS UI_EXT_MGR_IF : public BASE
|
||
|
|
{
|
||
|
|
private:
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Since this is an abstract class, the constructor is protected.
|
||
|
|
//
|
||
|
|
|
||
|
|
UI_EXT_MGR_IF( VOID );
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
//
|
||
|
|
// Class destructor.
|
||
|
|
//
|
||
|
|
|
||
|
|
~UI_EXT_MGR_IF( VOID );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Load a single extension.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual UI_EXT * LoadExtension( const TCHAR * pszExtensionDll,
|
||
|
|
DWORD dwDelta ) = 0;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Get the list of extension DLLs for this application.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual STRLIST * GetExtensionList( VOID ) = 0;
|
||
|
|
|
||
|
|
//
|
||
|
|
// Activate an extension.
|
||
|
|
//
|
||
|
|
|
||
|
|
virtual VOID ActivateExtension( HWND hwndParent,
|
||
|
|
UI_EXT * pExt,
|
||
|
|
DWORD dwId ) = 0;
|
||
|
|
|
||
|
|
}; // class UI_EXT_MGR_IF
|
||
|
|
|
||
|
|
|
||
|
|
#endif // _UIX_HXX_
|
||
|
|
|