/*
  LICENSE
  -------
Copyright 2005 Nullsoft, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice,
    this list of conditions and the following disclaimer. 

  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution. 

  * Neither the name of Nullsoft nor the names of its contributors may be used to 
    endorse or promote products derived from this software without specific prior written permission. 
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#ifndef _WA_IPC_H_
#define _WA_IPC_H_

/*
** This is the modern replacement for the classic 'frontend.h'. Most of these 
** updates are designed for in-process use, i.e. from a plugin.
**
*/

/* message used to sent many messages to winamp's main window. 
** most all of the IPC_* messages involve sending the message in the form of:
**   result = SendMessage(hwnd_winamp,WM_WA_IPC,(parameter),IPC_*);
*/
#define WM_WA_IPC WM_USER
/* but some of them use WM_COPYDATA. be afraid.
*/

#define IPC_GETVERSION 0
/* int version = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETVERSION);
**
** Version will be 0x20yx for winamp 2.yx. versions previous to Winamp 2.0
** typically (but not always) use 0x1zyx for 1.zx versions. Weird, I know.
*/

#define IPC_GETREGISTEREDVERSION 770


typedef struct {
  char *filename;
  char *title;
  int length;
} enqueueFileWithMetaStruct; // send this to a IPC_PLAYFILE in a non WM_COPYDATA, 
// and you get the nice desired result. if title is NULL, it is treated as a "thing",
// otherwise it's assumed to be a file (for speed)

#define IPC_PLAYFILE 100  // dont be fooled, this is really the same as enqueufile
#define IPC_ENQUEUEFILE 100 
/* sent as a WM_COPYDATA, with IPC_PLAYFILE as the dwData, and the string to play
** as the lpData. Just enqueues, does not clear the playlist or change the playback
** state.
*/


#define IPC_DELETE 101
#define IPC_DELETE_INT 1101 // don't use this, it's used internally by winamp when 
                            // dealing with some lame explorer issues.
/* SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_DELETE);
** Use IPC_DELETE to clear Winamp's internal playlist.
*/


#define IPC_STARTPLAY 102   // starts playback. almost like hitting play in Winamp.
#define IPC_STARTPLAY_INT 1102 // used internally, don't bother using it (won't be any fun)


#define IPC_CHDIR 103
/* sent as a WM_COPYDATA, with IPC_CHDIR as the dwData, and the directory to change to
** as the lpData. 
*/


#define IPC_ISPLAYING 104
/* int res = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_ISPLAYING);
** If it returns 1, it is playing. if it returns 3, it is paused, 
** if it returns 0, it is not playing.
*/


#define IPC_GETOUTPUTTIME 105
/* int res = SendMessage(hwnd_winamp,WM_WA_IPC,mode,IPC_GETOUTPUTTIME);
** returns the position in milliseconds of the current track (mode = 0), 
** or the track length, in seconds (mode = 1). Returns -1 if not playing or error.
*/


#define IPC_JUMPTOTIME 106
/* (requires Winamp 1.60+)
** SendMessage(hwnd_winamp,WM_WA_IPC,ms,IPC_JUMPTOTIME);
** IPC_JUMPTOTIME sets the position in milliseconds of the 
** current song (approximately).
** Returns -1 if not playing, 1 on eof, or 0 if successful
*/

#define IPC_GETMODULENAME 109
#define IPC_EX_ISRIGHTEXE 666
/* usually shouldnt bother using these, but here goes:
** send a WM_COPYDATA with IPC_GETMODULENAME, and an internal
** flag gets set, which if you send a normal WM_WA_IPC message with
** IPC_EX_ISRIGHTEXE, it returns whether or not that filename
** matches. lame, I know.
*/

#define IPC_WRITEPLAYLIST 120
/* (requires Winamp 1.666+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_WRITEPLAYLIST);
**
** IPC_WRITEPLAYLIST writes the current playlist to <winampdir>\\Winamp.m3u,
** and returns the current playlist position.
** Kinda obsoleted by some of the 2.x new stuff, but still good for when
** using a front-end (instead of a plug-in)
*/


#define IPC_SETPLAYLISTPOS 121
/* (requires Winamp 2.0+)
** SendMessage(hwnd_winamp,WM_WA_IPC,position,IPC_SETPLAYLISTPOS)
** IPC_SETPLAYLISTPOS sets the playlist position to 'position'. It
** does not change playback or anything, it just sets position, and
** updates the view if necessary
*/


#define IPC_SETVOLUME 122
/* (requires Winamp 2.0+)
** SendMessage(hwnd_winamp,WM_WA_IPC,volume,IPC_SETVOLUME);
** IPC_SETVOLUME sets the volume of Winamp (from 0-255).
*/


#define IPC_SETPANNING 123
/* (requires Winamp 2.0+)
** SendMessage(hwnd_winamp,WM_WA_IPC,panning,IPC_SETPANNING);
** IPC_SETPANNING sets the panning of Winamp (from 0 (left) to 255 (right)).
*/


#define IPC_GETLISTLENGTH 124
/* (requires Winamp 2.0+)
** int length = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETLISTLENGTH);
** IPC_GETLISTLENGTH returns the length of the current playlist, in
** tracks.
*/


#define IPC_GETLISTPOS 125
/* (requires Winamp 2.05+)
** int pos=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETLISTPOS);
** IPC_GETLISTPOS returns the playlist position. A lot like IPC_WRITEPLAYLIST
** only faster since it doesn't have to write out the list. Heh, silly me.
*/


#define IPC_GETINFO 126
/* (requires Winamp 2.05+)
** int inf=SendMessage(hwnd_winamp,WM_WA_IPC,mode,IPC_GETINFO);
** IPC_GETINFO returns info about the current playing song. The value
** it returns depends on the value of 'mode'.
** Mode      Meaning
** ------------------
** 0         Samplerate (i.e. 44100)
** 1         Bitrate  (i.e. 128)
** 2         Channels (i.e. 2)
** 3 (5+)    Video LOWORD=w HIWORD=h
** 4 (5+)    > 65536, string (video description)
*/


#define IPC_GETEQDATA 127
/* (requires Winamp 2.05+)
** int data=SendMessage(hwnd_winamp,WM_WA_IPC,pos,IPC_GETEQDATA);
** IPC_GETEQDATA queries the status of the EQ. 
** The value returned depends on what 'pos' is set to:
** Value      Meaning
** ------------------
** 0-9        The 10 bands of EQ data. 0-63 (+20db - -20db)
** 10         The preamp value. 0-63 (+20db - -20db)
** 11         Enabled. zero if disabled, nonzero if enabled.
** 12         Autoload. zero if disabled, nonzero if enabled.
*/


#define IPC_SETEQDATA 128
/* (requires Winamp 2.05+)
** SendMessage(hwnd_winamp,WM_WA_IPC,pos,IPC_GETEQDATA);
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SETEQDATA);
** IPC_SETEQDATA sets the value of the last position retrieved
** by IPC_GETEQDATA. This is pretty lame, and we should provide
** an extended version that lets you do a MAKELPARAM(pos,value).
** someday...

  new (2.92+): 
    if the high byte is set to 0xDB, then the third byte specifies
    which band, and the bottom word specifies the value.
*/

#define IPC_ADDBOOKMARK 129
/* (requires Winamp 2.4+)
** Sent as a WM_COPYDATA, using IPC_ADDBOOKMARK, adds the specified
** file/url to the Winamp bookmark list.
*/
/*
In winamp 5+, we use this as a normal WM_WA_IPC and the string:

  "filename\0title\0"

  to notify the library/bookmark editor that a bookmark
was added. Note that using this message in this context does not
actually add the bookmark.
do not use :)
*/


#define IPC_INSTALLPLUGIN 130
/* not implemented, but if it was you could do a WM_COPYDATA with 
** a path to a .wpz, and it would install it.
*/


#define IPC_RESTARTWINAMP 135
/* (requires Winamp 2.2+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_RESTARTWINAMP);
** IPC_RESTARTWINAMP will restart Winamp (isn't that obvious ? :)
*/


#define IPC_ISFULLSTOP 400
/* (requires winamp 2.7+ I think)
** ret=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_ISFULLSTOP);
** useful for when you're an output plugin, and you want to see
** if the stop/close is a full stop, or just between tracks.
** returns nonzero if it's full, zero if it's just a new track.
*/


#define IPC_INETAVAILABLE 242
/* (requires Winamp 2.05+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_INETAVAILABLE);
** IPC_INETAVAILABLE will return 1 if the Internet connection is available for Winamp.
*/


#define IPC_UPDTITLE 243
/* (requires Winamp 2.2+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_UPDTITLE);
** IPC_UPDTITLE will ask Winamp to update the informations about the current title.
*/


#define IPC_REFRESHPLCACHE 247
/* (requires Winamp 2.2+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_REFRESHPLCACHE);
** IPC_REFRESHPLCACHE will flush the playlist cache buffer.
** (send this if you want it to go refetch titles for tracks)
*/


#define IPC_GET_SHUFFLE 250
/* (requires Winamp 2.4+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GET_SHUFFLE);
**
** IPC_GET_SHUFFLE returns the status of the Shuffle option (1 if set)
*/


#define IPC_GET_REPEAT 251
/* (requires Winamp 2.4+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GET_REPEAT);
**
** IPC_GET_REPEAT returns the status of the Repeat option (1 if set)
*/


#define IPC_SET_SHUFFLE 252
/* (requires Winamp 2.4+)
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SET_SHUFFLE);
**
** IPC_SET_SHUFFLE sets the status of the Shuffle option (1 to turn it on)
*/


#define IPC_SET_REPEAT 253
/* (requires Winamp 2.4+)
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SET_REPEAT);
**
** IPC_SET_REPEAT sets the status of the Repeat option (1 to turn it on)
*/


#define IPC_ENABLEDISABLE_ALL_WINDOWS 259 // 0xdeadbeef to disable
/* (requires Winamp 2.9+)
** SendMessage(hwnd_winamp,WM_WA_IPC,enable?0:0xdeadbeef,IPC_MBOPENREAL);
** sending with 0xdeadbeef as the param disables all winamp windows, 
** any other values will enable all winamp windows.
*/


#define IPC_GETWND 260
/* (requires Winamp 2.9+)
** HWND h=SendMessage(hwnd_winamp,WM_WA_IPC,IPC_GETWND_xxx,IPC_GETWND);
** returns the HWND of the window specified.
*/
  #define IPC_GETWND_EQ 0 // use one of these for the param
  #define IPC_GETWND_PE 1
  #define IPC_GETWND_MB 2
  #define IPC_GETWND_VIDEO 3
#define IPC_ISWNDVISIBLE 261 // same param as IPC_GETWND




/************************************************************************
***************** in-process only (WE LOVE PLUGINS)
************************************************************************/


#define IPC_SETSKIN 200
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)"skinname",IPC_SETSKIN);
** IPC_SETSKIN sets the current skin to "skinname". Note that skinname 
** can be the name of a skin, a skin .zip file, with or without path. 
** If path isn't specified, the default search path is the winamp skins 
** directory.
*/


#define IPC_GETSKIN 201
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)skinname_buffer,IPC_GETSKIN);
** IPC_GETSKIN puts the directory where skin bitmaps can be found 
** into  skinname_buffer.
** skinname_buffer must be MAX_PATH characters in length.
** When using a .zip'd skin file, it'll return a temporary directory
** where the ZIP was decompressed.
*/


#define IPC_EXECPLUG 202
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)"vis_file.dll",IPC_EXECPLUG);
** IPC_EXECPLUG executes a visualization plug-in pointed to by WPARAM.
** the format of this string can be:
** "vis_whatever.dll"
** "vis_whatever.dll,0" // (first mod, file in winamp plug-in dir)
** "C:\\dir\\vis_whatever.dll,1" 
*/


#define IPC_GETPLAYLISTFILE 211
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** char *name=SendMessage(hwnd_winamp,WM_WA_IPC,index,IPC_GETPLAYLISTFILE);
** IPC_GETPLAYLISTFILE gets the filename of the playlist entry [index].
** returns a pointer to it. returns NULL on error.
*/


#define IPC_GETPLAYLISTTITLE 212
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** char *name=SendMessage(hwnd_winamp,WM_WA_IPC,index,IPC_GETPLAYLISTTITLE);
**
** IPC_GETPLAYLISTTITLE gets the title of the playlist entry [index].
** returns a pointer to it. returns NULL on error.
*/


#define IPC_GETHTTPGETTER 240
/* retrieves a function pointer to a HTTP retrieval function.
** if this is unsupported, returns 1 or 0.
** the function should be:
** int (*httpRetrieveFile)(HWND hwnd, char *url, char *file, char *dlgtitle);
** if you call this function, with a parent window, a URL, an output file, and a dialog title,
** it will return 0 on successful download, 1 on error.
*/


#define IPC_MBOPEN 241
/* (requires Winamp 2.05+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_MBOPEN);
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)url,IPC_MBOPEN);
** IPC_MBOPEN will open a new URL in the minibrowser. if url is NULL, it will open the Minibrowser window.
*/



#define IPC_CHANGECURRENTFILE 245
/* (requires Winamp 2.05+)
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)file,IPC_CHANGECURRENTFILE);
** IPC_CHANGECURRENTFILE will set the current playlist item.
*/


#define IPC_GETMBURL 246
/* (requires Winamp 2.2+)
** char buffer[4096]; // Urls can be VERY long
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)buffer,IPC_GETMBURL);
** IPC_GETMBURL will retrieve the current Minibrowser URL into buffer.
** buffer must be at least 4096 bytes long.
*/


#define IPC_MBBLOCK 248
/* (requires Winamp 2.4+)
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_MBBLOCK);
**
** IPC_MBBLOCK will block the Minibrowser from updates if value is set to 1
*/

#define IPC_MBOPENREAL 249
/* (requires Winamp 2.4+)
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)url,IPC_MBOPENREAL);
**
** IPC_MBOPENREAL works the same as IPC_MBOPEN except that it will works even if 
** IPC_MBBLOCK has been set to 1
*/

#define IPC_ADJUST_OPTIONSMENUPOS 280
/* (requires Winamp 2.9+)
** int newpos=SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)adjust_offset,IPC_ADJUST_OPTIONSMENUPOS);
** moves where winamp expects the Options menu in the main menu. Useful if you wish to insert a
** menu item above the options/skins/vis menus.
*/

#define IPC_GET_HMENU 281
/* (requires Winamp 2.9+)
** HMENU hMenu=SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)0,IPC_GET_HMENU);
** values for data:
** 0 : main popup menu 
** 1 : main menubar file menu
** 2 : main menubar options menu
** 3 : main menubar windows menu
** 4 : main menubar help menu
** other values will return NULL.
*/

#define IPC_GET_EXTENDED_FILE_INFO 290 //pass a pointer to the following struct in wParam
#define IPC_GET_EXTENDED_FILE_INFO_HOOKABLE 296
/* (requires Winamp 2.9+)
** to use, create an extendedFileInfoStruct, point the values filename and metadata to the
** filename and metadata field you wish to query, and ret to a buffer, with retlen to the
** length of that buffer, and then SendMessage(hwnd_winamp,WM_WA_IPC,&struct,IPC_GET_EXTENDED_FILE_INFO);
** the results should be in the buffer pointed to by ret.
** returns 1 if the decoder supports a getExtendedFileInfo method
*/
typedef struct {
  char *filename;
  char *metadata;
  char *ret;
  int retlen;
} extendedFileInfoStruct;

#define IPC_GET_BASIC_FILE_INFO 291 //pass a pointer to the following struct in wParam
typedef struct {
  char *filename;

  int quickCheck; // set to 0 to always get, 1 for quick, 2 for default (if 2, quickCheck will be set to 0 if quick wasnot used)

  // filled in by winamp
  int length;
  char *title;
  int titlelen;
} basicFileInfoStruct;

#define IPC_GET_EXTLIST 292 //returns doublenull delimited. GlobalFree() it when done. if data is 0, returns raw extlist, if 1, returns something suitable for getopenfilename

#define IPC_INFOBOX 293
typedef struct {
  HWND parent;
  char *filename;
} infoBoxParam;

#define IPC_SET_EXTENDED_FILE_INFO 294 //pass a pointer to the a extendedFileInfoStruct in wParam
/* (requires Winamp 2.9+)
** to use, create an extendedFileInfoStruct, point the values filename and metadata to the
** filename and metadata field you wish to write in ret. (retlen is not used). and then 
** SendMessage(hwnd_winamp,WM_WA_IPC,&struct,IPC_SET_EXTENDED_FILE_INFO);
** returns 1 if the metadata is supported
** Call IPC_WRITE_EXTENDED_FILE_INFO once you're done setting all the metadata you want to update
*/

#define IPC_WRITE_EXTENDED_FILE_INFO 295 
/* (requires Winamp 2.9+)
** writes all the metadata set thru IPC_SET_EXTENDED_FILE_INFO to the file
** returns 1 if the file has been successfully updated, 0 if error
*/

#define IPC_FORMAT_TITLE 297
typedef struct 
{
  char *spec; // NULL=default winamp spec
  void *p;

  char *out;
  int out_len;

  char * (*TAGFUNC)(char * tag, void * p); //return 0 if not found
  void (*TAGFREEFUNC)(char * tag,void * p);
} waFormatTitle;

#define IPC_GETUNCOMPRESSINTERFACE 331
/* returns a function pointer to uncompress().
** int (*uncompress)(unsigned char *dest, unsigned long *destLen, const unsigned char *source, unsigned long sourceLen);
** right out of zlib, useful for decompressing zlibbed data.
** if you pass the parm of 0x10100000, it will return a wa_inflate_struct * to an inflate API.
*/

typedef struct {
  int (*inflateReset)(void *strm);
  int (*inflateInit_)(void *strm,const char *version, int stream_size);
  int (*inflate)(void *strm, int flush);
  int (*inflateEnd)(void *strm);
  unsigned long (*crc32)(unsigned long crc, const unsigned  char *buf, unsigned int len);
} wa_inflate_struct;


#define IPC_ADD_PREFS_DLG 332
#define IPC_REMOVE_PREFS_DLG 333
/* (requires Winamp 2.9+)
** to use, allocate a prefsDlgRec structure (either on the heap or some global
** data, but NOT on the stack), initialze the members:
** hInst to the DLL instance where the resource is located
** dlgID to the ID of the dialog,
** proc to the window procedure for the dialog
** name to the name of the prefs page in the prefs.
** where to 0 (eventually we may add more options)
** then, SendMessage(hwnd_winamp,WM_WA_IPC,&prefsRec,IPC_ADD_PREFS_DLG);
**
** you can also IPC_REMOVE_PREFS_DLG with the address of the same prefsRec,
** but you shouldn't really ever have to.
**
*/
#define IPC_OPENPREFSTOPAGE 380 // pass an id of a builtin page, or a &prefsDlgRec of prefs page to open

typedef struct _prefsDlgRec {
  HINSTANCE hInst;
  int dlgID;
  void *proc;

  char *name;
  int where; // 0 for options, 1 for plugins, 2 for skins, 3 for bookmarks, 4 for prefs


  int _id;
  struct _prefsDlgRec *next;
} prefsDlgRec;


#define IPC_GETINIFILE 334 // returns a pointer to winamp.ini
#define IPC_GETINIDIRECTORY 335 // returns a pointer to the directory to put config files in (if you dont want to use winamp.ini)

#define IPC_SPAWNBUTTONPOPUP 361 // param =
// 0 = eject
// 1 = previous
// 2 = next
// 3 = pause
// 4 = play
// 5 = stop

#define IPC_OPENURLBOX 360 // pass a HWND to a parent, returns a HGLOBAL that needs to be freed with GlobalFree(), if successful
#define IPC_OPENFILEBOX 362 // pass a HWND to a parent
#define IPC_OPENDIRBOX 363 // pass a HWND to a parent

// pass an HWND to a parent. call this if you take over the whole UI so that the dialogs are not appearing on the
// bottom right of the screen since the main winamp window is at 3000x3000, call again with NULL to reset
#define IPC_SETDIALOGBOXPARENT 364 



// pass 0 for a copy of the skin HBITMAP
// pass 1 for name of font to use for playlist editor likeness
// pass 2 for font charset
// pass 3 for font size
#define IPC_GET_GENSKINBITMAP 503


#define IPC_GET_EMBEDIF 505 // pass an embedWindowState
// returns an HWND embedWindow(embedWindowState *); if the data is NULL, otherwise returns the HWND directly
typedef struct
{
  HWND me; //hwnd of the window

  int flags;

  RECT r;

  void *user_ptr; // for application use

  int extra_data[64]; // for internal winamp use
} embedWindowState;

#define EMBED_FLAGS_NORESIZE 1 // set this bit in embedWindowState.flags to keep window from being resizable
#define EMBED_FLAGS_NOTRANSPARENCY 2 // set this bit in embedWindowState.flags to make gen_ff turn transparency off for this wnd


#define IPC_EMBED_ENUM 532
typedef struct embedEnumStruct
{
  int (*enumProc)(embedWindowState *ws, struct embedEnumStruct *param); // return 1 to abort
  int user_data; // or more :)
} embedEnumStruct;
  // pass 

#define IPC_EMBED_ISVALID 533

#define IPC_CONVERTFILE 506
/* (requires Winamp 2.92+)
** Converts a given file to a different format (PCM, MP3, etc...)
** To use, pass a pointer to a waFileConvertStruct struct
** This struct can be either on the heap or some global
** data, but NOT on the stack. At least, until the conversion is done.
**
** eg: SendMessage(hwnd_winamp,WM_WA_IPC,&myConvertStruct,IPC_CONVERTFILE);
**
** Return value:
** 0: Can't start the conversion. Look at myConvertStruct->error for details.
** 1: Conversion started. Status messages will be sent to the specified callbackhwnd.
**    Be sure to call IPC_CONVERTFILE_END when your callback window receives the
**    IPC_CB_CONVERT_DONE message.
*/
typedef struct 
{
  char *sourcefile;  // "c:\\source.mp3"
  char *destfile;    // "c:\\dest.pcm"
  int destformat[8]; // like 'PCM ',srate,nch,bps
  HWND callbackhwnd; // window that will receive the IPC_CB_CONVERT notification messages
  
  //filled in by winamp.exe
  char *error;        //if IPC_CONVERTFILE returns 0, the reason will be here

  int bytes_done;     //you can look at both of these values for speed statistics
  int bytes_total;
  int bytes_out;

  int killswitch;     // don't set it manually, use IPC_CONVERTFILE_END
  int extra_data[64]; // for internal winamp use
} convertFileStruct;

#define IPC_CONVERTFILE_END 507
/* (requires Winamp 2.92+)
** Stop/ends a convert process started from IPC_CONVERTFILE
** You need to call this when you receive the IPC_CB_CONVERTDONE message or when you
** want to abort a conversion process
**
** eg: SendMessage(hwnd_winamp,WM_WA_IPC,&myConvertStruct,IPC_CONVERTFILE_END);
**
** No return value
*/

typedef struct {
  HWND hwndParent;
  int format;

  //filled in by winamp.exe
  HWND hwndConfig;
  int extra_data[8];
} convertConfigStruct;
#define IPC_CONVERT_CONFIG 508
#define IPC_CONVERT_CONFIG_END 509

typedef struct
{
  void (*enumProc)(int user_data, const char *desc, int fourcc);
  int user_data;
} converterEnumFmtStruct;
#define IPC_CONVERT_CONFIG_ENUMFMTS 510
/* (requires Winamp 2.92+)
*/


typedef struct
{
  char cdletter;
  char *playlist_file;
  HWND callback_hwnd;

  //filled in by winamp.exe
  char *error;
} burnCDStruct;
#define IPC_BURN_CD 511
/* (requires Winamp 5.0+)
*/

typedef struct
{
  convertFileStruct *cfs;
  int priority;
} convertSetPriority;
#define IPC_CONVERT_SET_PRIORITY 512

typedef struct
{
  char *filename;
  char *title; // 2048 bytes
  int length;
  int force_useformatting; // can set this to 1 if you want to force a url to use title formatting shit
} waHookTitleStruct;
// return TRUE if you hook this
#define IPC_HOOK_TITLES 850

#define IPC_GETSADATAFUNC 800 
// 0: returns a char *export_sa_get() that returns 150 bytes of data
// 1: returns a export_sa_setreq(int want);

#define IPC_ISMAINWNDVISIBLE 900


#define IPC_SETPLEDITCOLORS 920
typedef struct
{
  int numElems;
  int *elems;
  HBITMAP bm; // set if you want to override
} waSetPlColorsStruct;


// the following IPC use waSpawnMenuParms as parameter
#define IPC_SPAWNEQPRESETMENU 933
#define IPC_SPAWNFILEMENU 934 //menubar
#define IPC_SPAWNOPTIONSMENU 935 //menubar
#define IPC_SPAWNWINDOWSMENU 936 //menubar
#define IPC_SPAWNHELPMENU 937 //menubar
#define IPC_SPAWNPLAYMENU 938 //menubar
#define IPC_SPAWNPEFILEMENU 939 //menubar
#define IPC_SPAWNPEPLAYLISTMENU 940 //menubar
#define IPC_SPAWNPESORTMENU 941 //menubar
#define IPC_SPAWNPEHELPMENU 942 //menubar
#define IPC_SPAWNMLFILEMENU 943 //menubar
#define IPC_SPAWNMLVIEWMENU 944 //menubar
#define IPC_SPAWNMLHELPMENU 945 //menubar
#define IPC_SPAWNPELISTOFPLAYLISTS 946

typedef struct
{
  HWND wnd;
  int xpos; // in screen coordinates
  int ypos;
} waSpawnMenuParms;

// waSpawnMenuParms2 is used by the menubar submenus
typedef struct
{
  HWND wnd;
  int xpos; // in screen coordinates
  int ypos;
  int width;
  int height;
} waSpawnMenuParms2;


// system tray sends this (you might want to simulate it)
#define WM_WA_SYSTRAY WM_USER+1

// input plugins send this when they are done playing back
#define WM_WA_MPEG_EOF WM_USER+2



//// video stuff

#define IPC_IS_PLAYING_VIDEO 501 // returns >1 if playing, 0 if not, 1 if old version (so who knows):)
#define IPC_GET_IVIDEOOUTPUT 500 // see below for IVideoOutput interface
#define VIDEO_MAKETYPE(A,B,C,D) ((A) | ((B)<<8) | ((C)<<16) | ((D)<<24))
#define VIDUSER_SET_INFOSTRING 0x1000
#define VIDUSER_GET_VIDEOHWND  0x1001
#define VIDUSER_SET_VFLIP      0x1002
#define VIDUSER_SET_TRACKSELINTERFACE 0x1003 // give your ITrackSelector interface as param2

#ifndef NO_IVIDEO_DECLARE
#ifdef __cplusplus

class VideoOutput;
class SubsItem;

typedef	struct {
	unsigned char*	baseAddr;
	long			rowBytes;
} YV12_PLANE;

typedef	struct {
	YV12_PLANE	y;
	YV12_PLANE	u;
	YV12_PLANE	v;
} YV12_PLANES;

class IVideoOutput
{
  public:
    virtual ~IVideoOutput() { }
    virtual int open(int w, int h, int vflip, double aspectratio, unsigned int fmt)=0;
    virtual void setcallback(LRESULT (*msgcallback)(void *token, HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam), void *token) { }
    virtual void close()=0;
    virtual void draw(void *frame)=0;
    virtual void drawSubtitle(SubsItem *item) { }
    virtual void showStatusMsg(const char *text) { }
    virtual int get_latency() { return 0; }
    virtual void notifyBufferState(int bufferstate) { } /* 0-255*/

    virtual int extended(int param1, int param2, int param3) { return 0; } // Dispatchable, eat this!
};

class ITrackSelector 
{
  public:
    virtual int getNumAudioTracks()=0;
    virtual void enumAudioTrackName(int n, const char *buf, int size)=0;
    virtual int getCurAudioTrack()=0;
    virtual int getNumVideoTracks()=0;
    virtual void enumVideoTrackName(int n, const char *buf, int size)=0;
    virtual int getCurVideoTrack()=0;

    virtual void setAudioTrack(int n)=0;
    virtual void setVideoTrack(int n)=0;
};

#endif //cplusplus
#endif//NO_IVIDEO_DECLARE

// these messages are callbacks that you can grab by subclassing the winamp window

// wParam = 
#define IPC_CB_WND_EQ 0 // use one of these for the param
#define IPC_CB_WND_PE 1
#define IPC_CB_WND_MB 2
#define IPC_CB_WND_VIDEO 3
#define IPC_CB_WND_MAIN 4

#define IPC_CB_ONSHOWWND 600 
#define IPC_CB_ONHIDEWND 601 

#define IPC_CB_GETTOOLTIP 602

#define IPC_CB_MISC 603
    #define IPC_CB_MISC_TITLE 0
    #define IPC_CB_MISC_VOLUME 1 // volume/pan
    #define IPC_CB_MISC_STATUS 2
    #define IPC_CB_MISC_EQ 3
    #define IPC_CB_MISC_INFO 4
    #define IPC_CB_MISC_VIDEOINFO 5

#define IPC_CB_CONVERT_STATUS 604 // param value goes from 0 to 100 (percent)
#define IPC_CB_CONVERT_DONE   605

#define IPC_ADJUST_FFWINDOWSMENUPOS 606
/* (requires Winamp 2.9+)
** int newpos=SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)adjust_offset,IPC_ADJUST_FFWINDOWSMENUPOS);
** moves where winamp expects the freeform windows in the menubar windows main menu. Useful if you wish to insert a
** menu item above extra freeform windows.
*/

#define IPC_ISDOUBLESIZE 608

#define IPC_ADJUST_FFOPTIONSMENUPOS 609
/* (requires Winamp 2.9+)
** int newpos=SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)adjust_offset,IPC_ADJUST_FFOPTIONSMENUPOS);
** moves where winamp expects the freeform preferences item in the menubar windows main menu. Useful if you wish to insert a
** menu item above preferences item.
*/

#define IPC_GETTIMEDISPLAYMODE 610 // returns 0 if displaying elapsed time or 1 if displaying remaining time

#define IPC_SETVISWND 611 // param is hwnd, setting this allows you to receive ID_VIS_NEXT/PREVOUS/RANDOM/FS wm_commands
#define ID_VIS_NEXT                     40382
#define ID_VIS_PREV                     40383
#define ID_VIS_RANDOM                   40384
#define ID_VIS_FS                       40389
#define ID_VIS_CFG                      40390
#define ID_VIS_MENU                     40391

#define IPC_GETVISWND 612 // returns the vis cmd handler hwnd
#define IPC_ISVISRUNNING 613
#define IPC_CB_VISRANDOM 628 // param is status of random

#define IPC_SETIDEALVIDEOSIZE 614 // sent by winamp to winamp, trap it if you need it. width=HIWORD(param), height=LOWORD(param)

#define IPC_GETSTOPONVIDEOCLOSE 615
#define IPC_SETSTOPONVIDEOCLOSE 616

typedef struct {
  HWND hwnd;
  int uMsg;
  int wParam;
  int lParam;
} transAccelStruct;

#define IPC_TRANSLATEACCELERATOR 617

typedef struct {
  int cmd;
  int x;
  int y;
  int align;
} windowCommand; // send this as param to an IPC_PLCMD, IPC_MBCMD, IPC_VIDCMD

#define IPC_CB_ONTOGGLEAOT 618 

#define IPC_GETPREFSWND 619

#define IPC_SET_PE_WIDTHHEIGHT 620 // data is a pointer to a POINT structure that holds width & height

#define IPC_GETLANGUAGEPACKINSTANCE 621

#define IPC_CB_PEINFOTEXT 622 // data is a string, ie: "04:21/45:02"

#define IPC_CB_OUTPUTCHANGED 623 // output plugin was changed in config

#define IPC_GETOUTPUTPLUGIN 625

#define IPC_SETDRAWBORDERS 626
#define IPC_DISABLESKINCURSORS 627
#define IPC_CB_RESETFONT 629

#define IPC_IS_FULLSCREEN 630 // returns 1 if video or vis is in fullscreen mode
#define IPC_SET_VIS_FS_FLAG 631 // a vis should send this message with 1/as param to notify winamp that it has gone to or has come back from fullscreen mode

#define IPC_SHOW_NOTIFICATION 632

#define IPC_GETSKININFO 633

#define IPC_GET_MANUALPLADVANCE 634
/* (requires Winamp 5.03+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GET_MANUALPLADVANCE);
**
** IPC_GET_MANUALPLADVANCE returns the status of the Manual Playlist Advance (1 if set)
*/

#define IPC_SET_MANUALPLADVANCE 635
/* (requires Winamp 5.03+)
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SET_MANUALPLADVANCE);
**
** IPC_SET_MANUALPLADVANCE sets the status of the Manual Playlist Advance option (1 to turn it on)
*/

#define IPC_GET_NEXT_PLITEM 636
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_EOF_GET_NEXT_PLITEM);
**
** Sent to Winamp's main window when an item has just finished playback or the next button has been pressed and 
** requesting the new playlist item number to go to.
** Mainly used by gen_jumpex. Subclass this message in your application to return the new item number. 
** -1 for normal winamp operation (default) or the new item number in the playlist to play.
*/

#define IPC_GET_PREVIOUS_PLITEM 637
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_EOF_GET_PREVIOUS_PLITEM);
**
** Sent to Winamp's main window when the previous button has been pressed and Winamp is requesting the new playlist item number to go to.
** Mainly used by gen_jumpex. Subclass this message in your application to return the new item number. 
** -1 for normal winamp operation (default) or the new item number in the playlist to play.
*/

#define IPC_IS_WNDSHADE 638 
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,wnd,IPC_IS_WNDSHADE);
**
** 'wnd' is window id as defined for IPC_GETWND, or -1 for main window
** Returns 1 if wnd is set to winshade mode, or 0 if it is not
*/

#define IPC_SETRATING 639 
/* (requires Winamp 5.04+ with ML)
** SendMessage(hwnd_winamp,WM_WA_IPC,rating,IPC_SETRATING);
** 'rating' is an int value from 0 (no rating) to 5 
*/

#define IPC_GETRATING 640 
/* (requires Winamp 5.04+ with ML)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETRATING);
** returns the current item's rating
*/

#define IPC_GETNUMAUDIOTRACKS 641
/* (requires Winamp 5.04+)
** int n = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETNUMAUDIOTRACKS);
** returns the number of audio tracks for the currently playing item
*/

#define IPC_GETNUMVIDEOTRACKS 642
/* (requires Winamp 5.04+)
** int n = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETNUMVIDEOTRACKS);
** returns the number of video tracks for the currently playing item
*/

#define IPC_GETAUDIOTRACK 643
/* (requires Winamp 5.04+)
** int cur = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETAUDIOTRACK);
** returns the id of the current audio track for the currently playing item
*/

#define IPC_GETVIDEOTRACK 644
/* (requires Winamp 5.04+)
** int cur = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETVIDEOTRACK);
** returns the id of the current video track for the currently playing item
*/

#define IPC_SETAUDIOTRACK 645
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,track,IPC_SETAUDIOTRACK);
** switch the currently playing item to a new audio track 
*/

#define IPC_SETVIDEOTRACK 646
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,track,IPC_SETVIDEOTRACK);
** switch the currently playing item to a new video track 
*/

#define IPC_PUSH_DISABLE_EXIT 647
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_PUSH_DISABLE_EXIT );
** lets you disable or re-enable the UI exit functions (close button, 
** context menu, alt-f4).
** call IPC_POP_DISABLE_EXIT when you are done doing whatever required 
** preventing exit
*/

#define IPC_POP_DISABLE_EXIT  648
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_POP_DISABLE_EXIT );
** see IPC_PUSH_DISABLE_EXIT
*/

#define IPC_IS_EXIT_ENABLED 649
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_IS_EXIT_ENABLED);
** returns 0 if exit is disabled, 1 otherwise
*/

#define IPC_IS_AOT 650
/* (requires Winamp 5.04+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_IS_AOT);
** returns status of always on top flag. note: this may not match the actual
** TOPMOST window flag while another fullscreen application is focused
*/

#define IPC_USES_RECYCLEBIN 651
/*
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_USES_RECYCLEBIN);
** returns 1 if deleted files should be sent to the recycle bin.
** returns 0 if deleted files should be deleted permanently.
** 
** You should check for this option if your plugin deletes files
** so that your setting matches the winamp setting
*/
// >>>>>>>>>>> Next is 652

#define IPC_PLCMD  1000 

#define PLCMD_ADD  0
#define PLCMD_REM  1
#define PLCMD_SEL  2
#define PLCMD_MISC 3
#define PLCMD_LIST 4

#define IPC_MBCMD  1001 

#define MBCMD_BACK    0
#define MBCMD_FORWARD 1
#define MBCMD_STOP    2
#define MBCMD_RELOAD  3
#define MBCMD_MISC  4

#define IPC_VIDCMD 1002 

#define VIDCMD_FULLSCREEN 0
#define VIDCMD_1X         1
#define VIDCMD_2X         2
#define VIDCMD_LIB        3
#define VIDPOPUP_MISC     4

#define IPC_MBURL       1003 //sets the URL
#define IPC_MBGETCURURL 1004 //copies the current URL into wParam (have a 4096 buffer ready)
#define IPC_MBGETDESC   1005 //copies the current URL description into wParam (have a 4096 buffer ready)
#define IPC_MBCHECKLOCFILE 1006 //checks that the link file is up to date (otherwise updates it). wParam=parent HWND
#define IPC_MBREFRESH   1007 //refreshes the "now playing" view in the library
#define IPC_MBGETDEFURL 1008 //copies the default URL into wParam (have a 4096 buffer ready)

#define IPC_STATS_LIBRARY_ITEMCNT 1300 // updates library count status

// IPC 2000-3000 reserved for freeform messages, see gen_ff/ff_ipc.h
#define IPC_FF_FIRST 2000
#define IPC_FF_LAST  3000

#define IPC_GETDROPTARGET 3001

#define IPC_PLAYLIST_MODIFIED 3002 // sent to main wnd whenever the playlist is modified

#define IPC_PLAYING_FILE 3003 // sent to main wnd with the file as parm whenever a file is played
#define IPC_FILE_TAG_MAY_HAVE_UPDATED 3004 // sent to main wnd with the file as parm whenever a file tag might be updated


#define IPC_ALLOW_PLAYTRACKING 3007
// send nonzero to allow, zero to disallow

#define IPC_HOOK_OKTOQUIT 3010 // return 0 to abort a quit, nonzero if quit is OK

#define IPC_WRITECONFIG 3011 // pass 2 to write all, 1 to write playlist + common, 0 to write common+less common

#define IPC_TOGGLE_RESIZE  3012	// USE THIS TO TOGGLE RESIZING OFF/ON  BP.
// USE THIS TO PASS A URL TO AD WINDOW  bp
#define IPC_SHOW_AD_URL  3013	// pass the URL (char *) in lparam
#define IPC_SHOW_HWND  3014	    // HWND of AdBox is in lparam
// pass a string to be the name to register, and returns a value > 65536, which is a unique value you can use
// for custom WM_WA_IPC messages. 
#define IPC_REGISTER_WINAMP_IPCMESSAGE 65536 



#endif//_WA_IPC_H_