{========================================================================}
{=                (c) 1995-98 SwiftSoft Ronald Dittrich                 =}
{========================================================================}
{=                          All Rights Reserved                         =}
{========================================================================}
{=  D 01099 Dresden             = Tel.: +0351-8012255                   =}
{=  Loewenstr.7a                = info@swiftsoft.de                     =}
{========================================================================}
{=  Actual versions on http://www.swiftsoft.de/mmtools.html             =}
{========================================================================}
{=  This code is for reference purposes only and may not be copied or   =}
{=  distributed in any format electronic or otherwise except one copy   =}
{=  for backup purposes.                                                =}
{=                                                                      =}
{=  No Delphi Component Kit or Component individually or in a collection=}
{=  subclassed or otherwise from the code in this unit, or associated   =}
{=  .pas, .dfm, .dcu, .asm or .obj files may be sold or distributed     =}
{=  without express permission from SwiftSoft.                          =}
{=                                                                      =}
{=  For more licence informations please refer to the associated        =}
{=  HelpFile.                                                           =}
{========================================================================}
{=  $Date: 20.01.1998 - 18:00:00 $                                      =}
{========================================================================}
unit MMDIB;

{$I COMPILER.INC}

interface

uses
{$IFDEF WIN32}
  Windows,
{$ELSE}
  WinProcs,
  WinTypes,
{$ENDIF}
  MMSystem,
  MMUtils;

const
     BFT_ICON     = $4349; { 'IC' }
     BFT_BITMAP   = $4d42; { 'BM' }
     BFT_CURSOR   = $5450; { 'PT' }

     BI_BITFIELDS = 3;
     HALFTONE     = COLORONCOLOR;

     { flags for _lseek }
     SEEK_CUR     = 1;
     SEEK_END     = 2;
     SEEK_SET     = 0;

     { flags for orientation }
     TOPDOWN      = -1;
     BOTTOMUP     =  1;

type
    PRGBQUAD   = ^TRGBQUAD;
    PDIB       = PBitmapInfoHeader;
    HDIB       = THandle;

(************************************************************************)
procedure ClearSystemPalette;
function  CreateSystemColorPalette: PLogPalette;
function  LoadPalette(FName: string): PLOGPALETTE;
function  SavePalette(FName: string; pLogPal: PLOGPALETTE): Boolean;

(************************************************************************)
function  DIB_Create(bits, orientation, width, height: integer; AllocBits: Boolean): PDIB;
function  DIB_ReadBitmapInfo(fh: THandle): PDIB;
function  DIB_OpenFile(szFile: PChar): PDIB;
function  DIB_SetUsage(pbi: PDIB; hPal: HPALETTE; wUsage: UINT): Boolean;
procedure DIB_MapToPalette(var pbi: PDIB; hpal: HPALETTE);
procedure DIB_Display(pbi: PDIB; DC: HDC; aRect: TRect);
function  DIB_BitmapToDIB(Handle: HBitmap; Palette: HPalette;
                          Bits, Orientation: integer): PDIB;
procedure DIB_DIBToBitmap(pbi: PDIB; var Bitmap: HBitmap;
                          var Pal: HPalette);

(************************************************************************)
function  IsWinDIB(pbi: PBITMAPINFOHEADER): Boolean;
function  HandleFrom_DIB(lpbi: PDIB): THandle;
function  DIB_FromHandle(h: THandle): PDIB;
procedure DIB_Free(lpbi: PDIB);
function  DIB_Width(lpbi: PDIB): integer;
function  DIB_Height(lpbi: PDIB): integer;
function  DIB_BitCount(lpbi: PDIB): integer;
function  DIB_Compression(lpbi: PDIB): Longint;
function  DIB_NumColors(lpbi: PDIB): Longint;
function  DIB_WidthBytesN(lpbi: PDIB; n: integer): Longint;
function  DIB_WidthBytes(lpbi: PDIB): Longint;
function  DIB_BISize(lpbi: PDIB): integer;
function  DIB_SizeImage(lpbi: PDIB): Longint;
function  DIB_Size(lpbi: PDIB): Longint;
function  DIB_PaletteSize(lpbi: PDIB): Longint;
function  DIB_FlipY(lpbi: PDIB; y: integer): integer;
function  DIB_Colors(lpbi: PDIB): PRGBQUAD;
function  DIB_Ptr(lpbi: PDIB): Pointer;
function  DIB_XYN(lpbi: PDIB; pb: Pointer; x,y,n: integer): Pointer;
function  DIB_XY(lpbi: PDIB;x,y: integer): Pointer;
function  DIB_Info(pDIB: PDIB): PBitmapInfo;

implementation