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https://gitlab.com/freepascal.org/fpc/source.git
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100 lines
2.1 KiB
PHP
100 lines
2.1 KiB
PHP
{
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System independent system interface for go32v2
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Copyright (c) 2000 by Pierre Muller
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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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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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}
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Const
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SystemEventActive : Boolean = false;
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procedure InitSystemMsg;
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var
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res : word;
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begin
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if SystemEventActive then
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exit;
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{ enable close }
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asm
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movl $0x168f,%eax
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movl $1,%edx
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int $0x2f
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movw %ax,Res
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end;
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SystemEventActive:=(Res=0);
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end;
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procedure DoneSystemMsg;
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begin
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if not SystemEventActive then
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exit;
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{ disable close }
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asm
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movl $0x168f,%eax
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movl $0,%edx
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int $0x2f
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end;
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SystemEventActive:=false;
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end;
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procedure GetSystemEvent(var SystemEvent: TSystemEvent);
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begin
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PollSystemEvent(SystemEvent);
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end;
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function PollSystemEvent(var SystemEvent: TSystemEvent):boolean;
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var
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CloseState : word;
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begin
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SystemEvent.typ:=SysNothing;
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if not SystemEventActive then
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exit(false);
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{ Query close }
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asm
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movl $0x168f,%eax
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movl $100,%edx
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int $0x2f
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movw %ax,CloseState
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end;
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if (CloseState = 0) then
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begin
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{ acknowledge Close }
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asm
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movl $0x168f,%eax
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movl $200,%edx
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int $0x2f
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movw %ax,CloseState
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end;
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{ non zero means error ! }
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if CloseState=0 then
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begin
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PollSystemEvent:=true;
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SystemEvent.typ:=SysClose;
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end;
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end;
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end;
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{
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$Log: go32smsg.inc,v $
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Revision 1.2 2005/02/14 17:13:18 peter
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* truncate log
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}
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