80 lines
1.9 KiB
ObjectPascal
80 lines
1.9 KiB
ObjectPascal
{ BePascal - A pascal wrapper around the BeOS API
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Copyright (C) 2002 Olivier Coursiere
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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}
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unit handler;
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interface
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uses
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beobj, archivable, message;
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type
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THandler = class(TArchivable)
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public
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procedure MessageReceived(aMessage : TMessage); virtual;
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end;
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implementation
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uses
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SysUtils;
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var
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Handler_MessageReceived_hook : Pointer; cvar; external;
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procedure THandler.MessageReceived(aMessage : TMessage);
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begin
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{$IFDEF DEBUG}
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WriteLn(ClassName + '.MessageReceived');
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WriteLn('Message reçue');
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aMessage.PrintToStream;
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{$ENDIF}
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end;
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procedure Handler_MessageReceived_hook_func(Handler : THandler; aMessage : TCPlusObject); cdecl;
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var
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Message : TMessage;
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begin
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try
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{$IFDEF DEBUG}
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WriteLn('Hook MessageReceived !');
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{$ENDIF}
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Message := TMessage.Wrap(aMessage);
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try
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if Handler <> nil then
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Handler.MessageReceived(Message);
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finally
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Message.UnWrap;
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end;
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except
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on e : exception do
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begin
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{$IFDEF DEBUG}
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WriteLn(e.Message + 'Handler_MessageReceived');
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{$ENDIF}
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end;
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end
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end;
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initialization
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Handler_MessageReceived_hook := @Handler_MessageReceived_hook_func;
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finalization
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Handler_MessageReceived_hook := nil;
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end. |