DELPHI / Winamp Api

unit WinampApi;

interface
uses Windows,Messages,Classes,SysUtils;
type
TWinampApi = class
private
WinampHnd : THandle;
function ConvertTime(n: integer;m : integer): string;
function ConvertTimeTool(n: integer): string;
function split(seperator: Char; text: String; var list: TStringList): Integer;
public
WinampPath : String;
SongLengthParseTime : Boolean;
SongPosParseTime : Boolean;
constructor Create(WPath : String);
function getWhatsPlaying() tring;
function getSongState() tring;
function getSongPosition() tring;
function getSongLength() tring;
function getSongSampleRate() tring;
function getSongBitRate() tring;
function getSongChannels() tring;
function getPlayListPosition() tring;
function getPlayListLength() tring;
procedure getPlayList(var PlayList:TStringList;var FileList:TStringList);
procedure PlaySong(Mp3Name:string);
procedure AddToPlayList(Mp3Name:string);
procedure Play();
procedure Stop();
procedure Pause();
procedure NextTrack();
procedure PreviousTrack();
procedure Forward5Seconds();
procedure Back5Seconds();
procedure StartOfPlayList();
procedure VolumeUp();
procedure VolumeDown();
procedure FadeOutStop();
end;
implementation
{ ----- PUBLIC VOID/NULL RETURN METHODS ---- }
constructor TWinampApi.Create(WPath : String);
begin
SongLengthParseTime := False;
SongPosParseTime := False;
WinampPath := WPath;
WinampHnd := FindWindow(\'Winamp v1.x\', nil);
end;
procedure TWinampApi.PlaySong(Mp3Name tring);
begin
WinExec(PChar(\'\"\'+WinampPath+\'\\winamp.exe\" \"\'+Mp3Name+\'\"\'),SW_SHOW);
end;
procedure TWinampApi.AddToPlayList(Mp3Name tring);
begin
WinExec(PChar(\'\"\'+WinampPath+\'\\winamp.exe\" /ADD \"\'+Mp3Name+\'\"\'),SW_SHOW);
end;
procedure TWinampApi.Play();
begin
SendMessage(WinampHnd, WM_COMMAND, 40045, 0);
end;
procedure TWinampApi.Stop();
begin
SendMessage(WinampHnd, WM_COMMAND, 40047, 0);
end;
procedure TWinampApi.Pause();
begin
SendMessage(WinampHnd, WM_COMMAND, 40046, 0);
end;
procedure TWinampApi.NextTrack();
begin
SendMessage(WinampHnd, WM_COMMAND, 40048, 0);
end;
procedure TWinampApi.PreviousTrack();
begin
SendMessage(WinampHnd, WM_COMMAND, 40044, 0);
end;
procedure TWinampApi.Forward5Seconds();
begin
SendMessage(WinampHnd, WM_COMMAND, 40148, 0);
end;
procedure TWinampApi.Back5Seconds();
begin
SendMessage(WinampHnd, WM_COMMAND, 40144, 0);
end;
procedure TWinampApi.StartOfPlayList();
begin
SendMessage(WinampHnd, WM_COMMAND, 40154, 0);
end;
procedure TWinampApi.VolumeUp();
begin
SendMessage(WinampHnd, WM_COMMAND, 40058, 0);
end;
procedure TWinampApi.VolumeDown();
begin
SendMessage(WinampHnd, WM_COMMAND, 40059, 0);
end;
procedure TWinampApi.FadeOutStop();
begin
SendMessage(WinampHnd, WM_COMMAND, 40147, 0);
end;
function TWinampApi.getWhatsPlaying() tring;
var
TitleLen: integer;
TempInt : Integer;
TempStr: String;
begin
TempStr := \'Winamp isn\'\'t running\';
if WinampHnd <> 0 then
begin
// Get wHnd text
TitleLen := GetWindowTextLength(WinampHnd)+2;
SetLength(TempStr,TitleLen);
GetWindowText(WinampHnd,Pchar(TempStr),TitleLen);
SetLength(TempStr,Length(TempStr));
// Remove \'- Winamp\' part
TempInt := Pos(\'- Winamp\',TempStr);
TempStr := Copy(TempStr,0,TempInt -2); // Knock of space and -
end;

result := TempStr;
end;
procedure TWinampApi.getPlayList(var PlayList:TStringList;var FileList:TStringList);
var
Buffer: string;
Stream: TFileStream;
FileStr : String;
TempList : TStringList;
TempListLen : Integer;
TempStr,TempStr2 : String;
TempPos,TempPos2 : Integer;
i : Integer;
begin
SendMessage(WinampHnd,WM_USER,0,120);
Stream := TFileStream.Create(WinampPath+\'\\winamp.m3u\', fmShareDenyNone);
try
SetLength(buffer, Stream.Size);
Stream.Read(Buffer[1], Stream.Size);
FileStr := Buffer;
finally
Stream.Free;
end;
TempList := TStringList.Create;
TempListLen := Split(\'#\',FileStr,TempList);
// Start from 1 to cut out \'#EXTM3U\'. Grab Name and Filename
for i:=2 to TempListLen -1 do
begin
TempPos := Pos(\',\',TempList.Strings);
TempPos2 := Pos(#13,TempList.Strings);
TempStr := Copy(TempList.Strings,TempPos +1,(TempPos2 -1) - TempPos);
TempStr2 := Copy(TempList.Strings,TempPos2 +2,(Length(TempList.Strings) -1) - (TempPos2 +2));
PlayList.Add(TempStr);
FileList.Add(TempStr2);
end;
TempList.Free;
end;
{ ----- PUBLIC RETURN METHODS ---- }
function TWinampApi.getSongState()

tring;
var
SongState : Word;
SongStateStr : String;
begin
SongState := SendMessage(WinampHnd,WM_USER,0,104);
case SongState of
1: SongStateStr:= \'playing\';
3: SongStateStr:= \'paused\';
0: SongStateStr:= \'stopped\'
else
SongStateStr := \'unknown\';
end;
Result := SongStateStr;
end;
function TWinampApi.getSongPosition()

tring;
var
TempInt : Integer;
begin
TempInt := SendMessage(WinampHnd,WM_USER,0,105);

if SongPosParseTime then
Result := ConvertTime(TempInt,1000)
else
Result := IntToStr(TempInt);
end;
function TWinampApi.getSongLength()

tring;
var
TempInt : Integer;
begin
TempInt := SendMessage(WinampHnd,WM_USER,1,105);

if SongLengthParseTime then
Result := ConvertTime(TempInt,1)
else
Result := IntToStr(TempInt);
end;
function TWinampApi.getSongSampleRate()

tring;
begin
Result := IntToStr(SendMessage(WinampHnd,WM_USER,0,126));
end;
function TWinampApi.getSongBitRate()

tring;
begin
Result := IntToStr(SendMessage(WinampHnd,WM_USER,1,126));
end;
function TWinampApi.getSongChannels()

tring;
begin
Result := IntToStr(SendMessage(WinampHnd,WM_USER,2,126));
end;
function TWinampApi.getPlayListPosition()

tring;
var
TempInt : Integer;
begin
TempInt := SendMessage(WinampHnd,WM_USER,0,125);
if StrToInt(getPlayListLength()) <1 then
Result := IntToStr(TempInt)
else
Result := IntToStr(TempInt +1);
end;
function TWinampApi.getPlayListLength()

tring;
begin
Result := IntToStr(SendMessage(WinampHnd,WM_USER,0,124));
end;
{ ----- PRIVATE METHODS ----- }
function TWinampApi.ConvertTime(n: integer;m : integer): string;
begin
n := n div m;
result := ConvertTimeTool(n div 60) + \':\' + ConvertTimeTool(n mod 60);
end;
function TWinampApi.ConvertTimeTool(n: integer): string;
begin
if n < 10 then
result := \'0\' + inttostr(n)
else
result := inttostr(n);
end;
function TWinampApi.split(seperator: Char; text: String; var list: TStringList): Integer;
var
mypos, number: Integer;
begin
number:=0;
if Length(text) > 0 then
begin
if text[Length(text)] <> seperator then
text:=text+seperator;
while(Pos(String(seperator),text))>0 do
begin
mypos:=Pos(String(seperator),text);
list.Add(Copy(text,1,mypos-1));
text:=Copy(text,mypos+1,Length(text)-mypos);
Inc(number);
end;
end;
Result:=number;
end;
end.