{========================================================================}
{=                (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 MMDSystm;

{$C FIXED PRELOAD PERMANENT}

{$I COMPILER.INC}

interface

uses
    Windows,
    OLE2,
    SysUtils,
    MMSystem,
    MMUtils,
    MMRegs,
    MMWaveIO,
    MMPCMSup,
    MMDSound;

{ Emulated devices are very, very slow:
  change this value to adjust the buffer return time for emulated drivers
}
const
    TIMEADJUST    : integer = 60;

const
    DS_NEEDVOLUME = $10000000;
    DS_NEEDPAN    = $20000000;
    DS_NEEDFREQ   = $40000000;

procedure DSSetHWND(hWaveOut: HWAVEOUT; hw: HWND);
function  DSCreatePrimaryBuffer(hWaveOut: HWAVEOUT; lpFormat: PWaveFormatEx): HRESULT;
function  DSWaveOutOpen(lphWaveOut: PHWAVEOUT; uDeviceID: UINT; lpFormat: PWaveFormatEx;
                        dwCallback, dwInstance, dwFlags: DWORD): MMRESULT; stdcall;
function  DSWaveOutClose(hWaveOut: HWAVEOUT): MMRESULT;
function  DSWaveOutPrepareHeader(hWaveOut: HWAVEOUT; lpWaveHdr: PWaveHdr;
                                 uSize: UINT): MMRESULT;
function  DSWaveOutUnprepareHeader(hWaveOut: HWAVEOUT; lpWaveHdr: PWaveHdr;
                                   uSize: UINT): MMRESULT;
function  DSWaveOutWrite(hWaveOut: HWAVEOUT; lpWaveHdr: PWaveHdr;
                         uSize: UINT): MMRESULT;
function  DSWaveOutPause(hWaveOut: HWAVEOUT): MMRESULT;
function  DSWaveOutRestart(hWaveOut: HWAVEOUT): MMRESULT;
function  DSWaveOutReset(hWaveOut: HWAVEOUT): MMRESULT;
function  DSWaveOutGetPosition(hWaveOut: HWAVEOUT; lpInfo: PMMTime;
                               uSize: UINT): MMRESULT;
function  DSWaveOutSetVolume(hWaveOut: HWAVEOUT; dwVolume: DWORD): MMRESULT;
function  DSWaveOutGetVolume(hWaveOut: HWAVEOUT; lpdwVolume: PDWORD): MMRESULT;
function  DSWaveOutSetPan(hWaveOut: HWAVEOUT; dwPan: DWORD): MMRESULT;
function  DSWaveOutGetPan(hWaveOut: HWAVEOUT; lpdwPan: PDWORD): MMRESULT;
function  DSWaveOutSetPlaybackRate(hWaveOut: HWAVEOUT; dwRate: DWORD): MMRESULT;
function  DSWaveOutGetPlaybackRate(hWaveOut: HWAVEOUT; lpdwRate: PDWORD): MMRESULT;

implementation