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diff --git a/Lua/src/macosx/Windows.pas b/Lua/src/macosx/Windows.pas
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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 Windows;
+
+{$I switches.inc}
+
+interface
+
+uses
+  Types;
+
+const
+  opengl32 = 'OpenGL';
+  MAX_PATH = 260;
+
+type
+
+  DWORD = Types.DWORD;
+  {$EXTERNALSYM DWORD}
+  BOOL = LongBool;
+  {$EXTERNALSYM BOOL}
+  PBOOL = ^BOOL;
+  {$EXTERNALSYM PBOOL}
+  PByte = Types.PByte;
+  PINT = ^Integer;
+  {$EXTERNALSYM PINT}
+  PSingle = ^Single;
+  PWORD = ^Word;
+  {$EXTERNALSYM PWORD}
+  PDWORD = ^DWORD;
+  {$EXTERNALSYM PDWORD}
+  LPDWORD = PDWORD;
+  {$EXTERNALSYM LPDWORD}
+  HDC = type LongWord;
+  {$EXTERNALSYM HDC}
+  HGLRC = type LongWord;
+  {$EXTERNALSYM HGLRC}
+  TLargeInteger = Int64;
+  HFONT = type LongWord;
+  {$EXTERNALSYM HFONT}
+  HWND = type LongWord;
+  {$EXTERNALSYM HWND}
+
+  PPaletteEntry = ^TPaletteEntry;
+  {$EXTERNALSYM tagPALETTEENTRY}
+  tagPALETTEENTRY = packed record
+    peRed: Byte;
+    peGreen: Byte;
+    peBlue: Byte;
+    peFlags: Byte;
+  end;
+  TPaletteEntry = tagPALETTEENTRY;
+  {$EXTERNALSYM PALETTEENTRY}
+  PALETTEENTRY = tagPALETTEENTRY;
+  
+  PRGBQuad = ^TRGBQuad;
+  {$EXTERNALSYM tagRGBQUAD}
+  tagRGBQUAD = packed record
+    rgbBlue: Byte;
+    rgbGreen: Byte;
+    rgbRed: Byte;
+    rgbReserved: Byte;
+  end;
+  TRGBQuad = tagRGBQUAD;
+  {$EXTERNALSYM RGBQUAD}
+  RGBQUAD = tagRGBQUAD;
+
+  PBitmapInfoHeader = ^TBitmapInfoHeader;
+  {$EXTERNALSYM tagBITMAPINFOHEADER}
+  tagBITMAPINFOHEADER = packed record
+    biSize: DWORD;
+    biWidth: Longint;
+    biHeight: Longint;
+    biPlanes: Word;
+    biBitCount: Word;
+    biCompression: DWORD;
+    biSizeImage: DWORD;
+    biXPelsPerMeter: Longint;
+    biYPelsPerMeter: Longint;
+    biClrUsed: DWORD;
+    biClrImportant: DWORD;
+  end;
+  TBitmapInfoHeader = tagBITMAPINFOHEADER;
+  {$EXTERNALSYM BITMAPINFOHEADER}
+  BITMAPINFOHEADER = tagBITMAPINFOHEADER;
+
+  PBitmapInfo = ^TBitmapInfo;
+  {$EXTERNALSYM tagBITMAPINFO}
+  tagBITMAPINFO = packed record
+      bmiHeader: TBitmapInfoHeader;
+      bmiColors: array[0..0] of TRGBQuad;
+  end;
+  TBitmapInfo = tagBITMAPINFO;
+  {$EXTERNALSYM BITMAPINFO}
+  BITMAPINFO = tagBITMAPINFO;
+	
+  PBitmapFileHeader = ^TBitmapFileHeader;
+  {$EXTERNALSYM tagBITMAPFILEHEADER}
+  tagBITMAPFILEHEADER = packed record
+    bfType: Word;
+    bfSize: DWORD;
+    bfReserved1: Word;
+    bfReserved2: Word;
+    bfOffBits: DWORD;
+  end;
+  TBitmapFileHeader = tagBITMAPFILEHEADER;
+  {$EXTERNALSYM BITMAPFILEHEADER}
+  BITMAPFILEHEADER = tagBITMAPFILEHEADER;
+	
+
+function MakeLong(a, b: Word): Longint;
+procedure ZeroMemory(Destination: Pointer; Length: DWORD);
+function QueryPerformanceFrequency(var lpFrequency: TLargeInteger): BOOL;
+function QueryPerformanceCounter(var lpPerformanceCount: TLargeInteger): BOOL;
+function GetTickCount : Cardinal;
+Procedure ShowMessage(msg : String);
+procedure CopyMemory(Destination: Pointer; Source: Pointer; Length: DWORD);
+
+implementation
+
+uses
+  SDL;
+
+procedure CopyMemory(Destination: Pointer; Source: Pointer; Length: DWORD);
+begin
+  Move(Source^, Destination^, Length);
+end;
+
+procedure ShowMessage(msg : String);
+begin
+  // to be implemented	
+end;
+
+function MakeLong(A, B: Word): Longint;
+begin
+  Result := (LongInt(B) shl 16) + A;
+end;
+
+procedure ZeroMemory(Destination: Pointer; Length: DWORD);
+begin
+  FillChar( Destination^, Length, 0);
+end;
+
+function QueryPerformanceFrequency(var lpFrequency: TLargeInteger): BOOL;
+begin
+{$IFDEF MSWINDOWS}
+  Result := Windows.QueryPerformanceFrequency(lpFrequency);
+{$ENDIF}
+{$IFDEF MACOS}
+  Result := true;
+  lpFrequency := 1000;
+{$ENDIF}
+end;
+
+function QueryPerformanceCounter(var lpPerformanceCount: TLargeInteger): BOOL;
+begin
+{$IFDEF MSWINDOWS}
+  Result := Windows.QueryPerformanceCounter(lpPerformanceCount);
+{$ENDIF}
+{$IFDEF MACOS}
+  Result := true;
+  lpPerformanceCount := SDL_GetTicks;
+{$ENDIF}
+end;
+
+function GetTickCount : Cardinal;
+begin
+  Result := SDL_GetTicks;
+end;
+
+end.