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{* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*}
unit uPluginInterface;
{*********************
uPluginInterface
Unit fills a TPluginInterface structure with method pointers
Unit contains all functions called directly by plugins
*********************}
interface
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I switches.inc}
uses
uPluginDefs;
//---------------
// Methods for Plugin
//---------------
{******** Hook specific Methods ********}
{Function Creates a new Hookable Event and Returns the Handle
or 0 on Failure. (Name already exists)}
Function CreateHookableEvent (EventName: PChar): THandle; stdcall;
{Function Destroys an Event and Unhooks all Hooks to this Event.
0 on success, not 0 on Failure}
Function DestroyHookableEvent (hEvent: THandle): integer; stdcall;
{Function start calling the Hook Chain
0 if Chain is called until the End, -1 if Event Handle is not valid
otherwise Return Value of the Hook that breaks the Chain}
Function NotivyEventHooks (hEvent: THandle; wParam: TwParam; lParam: TlParam): integer; stdcall;
{Function Hooks an Event by Name.
Returns Hook Handle on Success, otherwise 0}
Function HookEvent (EventName: PChar; HookProc: TUS_Hook): THandle; stdcall;
{Function Removes the Hook from the Chain
Returns 0 on Success}
Function UnHookEvent (hHook: THandle): Integer; stdcall;
{Function Returns Non Zero if a Event with the given Name Exists,
otherwise 0}
Function EventExists (EventName: PChar): Integer; stdcall;
{******** Service specific Methods ********}
{Function Creates a new Service and Returns the Services Handle
or 0 on Failure. (Name already exists)}
Function CreateService (ServiceName: PChar; ServiceProc: TUS_Service): THandle; stdcall;
{Function Destroys a Service.
0 on success, not 0 on Failure}
Function DestroyService (hService: THandle): integer; stdcall;
{Function Calls a Services Proc
Returns Services Return Value or SERVICE_NOT_FOUND on Failure}
Function CallService (ServiceName: PChar; wParam: TwParam; lParam: TlParam): integer; stdcall;
{Function Returns Non Zero if a Service with the given Name Exists,
otherwise 0}
Function ServiceExists (ServiceName: PChar): Integer; stdcall;
implementation
uses UCore;
{******** Hook specific Methods ********}
//---------------
// Function Creates a new Hookable Event and Returns the Handle
// or 0 on Failure. (Name already exists)
//---------------
Function CreateHookableEvent (EventName: PChar): THandle; stdcall;
begin
Result := Core.Hooks.AddEvent(EventName);
end;
//---------------
// Function Destroys an Event and Unhooks all Hooks to this Event.
// 0 on success, not 0 on Failure
//---------------
Function DestroyHookableEvent (hEvent: THandle): integer; stdcall;
begin
Result := Core.Hooks.DelEvent(hEvent);
end;
//---------------
// Function start calling the Hook Chain
// 0 if Chain is called until the End, -1 if Event Handle is not valid
// otherwise Return Value of the Hook that breaks the Chain
//---------------
Function NotivyEventHooks (hEvent: THandle; wParam: TwParam; lParam: TlParam): integer; stdcall;
begin
Result := Core.Hooks.CallEventChain(hEvent, wParam, lParam);
end;
//---------------
// Function Hooks an Event by Name.
// Returns Hook Handle on Success, otherwise 0
//---------------
Function HookEvent (EventName: PChar; HookProc: TUS_Hook): THandle; stdcall;
begin
Result := Core.Hooks.AddSubscriber(EventName, HookProc);
end;
//---------------
// Function Removes the Hook from the Chain
// Returns 0 on Success
//---------------
Function UnHookEvent (hHook: THandle): Integer; stdcall;
begin
Result := Core.Hooks.DelSubscriber(hHook);
end;
//---------------
// Function Returns Non Zero if a Event with the given Name Exists,
// otherwise 0
//---------------
Function EventExists (EventName: PChar): Integer; stdcall;
begin
Result := Core.Hooks.EventExists(EventName);
end;
{******** Service specific Methods ********}
//---------------
// Function Creates a new Service and Returns the Services Handle
// or 0 on Failure. (Name already exists)
//---------------
Function CreateService (ServiceName: PChar; ServiceProc: TUS_Service): THandle; stdcall;
begin
Result := Core.Services.AddService(ServiceName, ServiceProc);
end;
//---------------
// Function Destroys a Service.
// 0 on success, not 0 on Failure
//---------------
Function DestroyService (hService: THandle): integer; stdcall;
begin
Result := Core.Services.DelService(hService);
end;
//---------------
// Function Calls a Services Proc
// Returns Services Return Value or SERVICE_NOT_FOUND on Failure
//---------------
Function CallService (ServiceName: PChar; wParam: TwParam; lParam: TlParam): integer; stdcall;
begin
Result := Core.Services.CallService(ServiceName, wParam, lParam);
end;
//---------------
// Function Returns Non Zero if a Service with the given Name Exists,
// otherwise 0
//---------------
Function ServiceExists (ServiceName: PChar): Integer; stdcall;
begin
Result := Core.Services.ServiceExists(ServiceName);
end;
end.
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