freepascal.compiler/rtl/inc/video.inc

{
    $Id$
    This file is part of the Free Pascal run time library.
    Copyright (c) 1999-2000 by the Free Pascal development team

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    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.

 **********************************************************************}

procedure GetVideoMode(var Mode: TVideoMode);
begin
  Mode.Col := ScreenWidth;
  Mode.Row := ScreenHeight;
  Mode.Color := ScreenColor;
end;

procedure SetVideoMode(Mode: TVideoMode);
var
  P: PVideoModeList;
begin
  P := Modes;
  while (P<>Nil) and ((P^.Row <> Mode.Row) or (P^.Col <> Mode.Col) or (P^.Color<>Mode.Color)) do
    P := P^.Next;
  if P <> nil then begin
    DoneVideo;
    ScreenWidth:=$ffff;
    ScreenHeight:=$ffff;
    P^.VideoModeSelector(PVideoMode(P)^, P^.Params);
    InitVideo;
   end
   else begin
    ErrorHandler(errVioNoSuchMode, @Mode);
  end;
end;

procedure RegisterVideoMode(Col, Row: Word; Color: Boolean; VideoModeSelector: TVideoModeSelector; Params: Longint);
var
  P: PVideoModeList;
begin
  New(P);
  P^.Col := Col;
  P^.Row := Row;
  P^.Color := Color;
  P^.VideoModeSelector := VideoModeSelector;
  P^.Params := Params;
  P^.Next := Modes;
  Modes := P;
end;


procedure UnRegisterVideoModes;
var
  P: PVideoModeList;
begin
  while assigned(modes) do
   begin
     p:=modes;
     modes:=modes^.next;
     dispose(p);
   end;
end;

function DefaultErrorHandler(AErrorCode: Longint; AErrorInfo: Pointer): TErrorHandlerReturnValue;
begin
  ErrorCode := AErrorCode;
  ErrorInfo := AErrorInfo;
  DefaultErrorHandler := errAbort; { return error code }
end;

{
  $Log$
  Revision 1.1  2001-01-13 11:13:12  peter
    * API 2 RTL

}