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FRONTEND.TXT
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1997-11-06
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This file is only useful for people who are writing frontends for Winamp.
Actually, it's useful for plugin authors too.
Psuedo IPC for frontends for Winamp v1.55+ (< 2.0)
(v1.60 will have some extensions, listed at a later date)
This document is horribly [de]organized, and is pretty much just hacked
together for people to use.
Winamp's window is found using:
hwnd_winamp = FindWindow("Winamp v1.x",NULL);
#define WM_WA_IPC WM_USER
// messages are sent to the winamp window using:
result = SendMessage(hwnd_winamp,WM_WA_IPC,command_data,command);
/* Messages available to send */
#define IPC_GETVERSION 0
/*
IPC_GETVERSION is sent to the window, and the return value is the version
Version 1.55 = 0x1551
Version 1.6 BETA = 0x16A0
the command_data parameter is 0.
so,
if (SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETVERSION) != 0x1551)
MessageBox(NULL,"Error, Winamp 1.55 not found","Warning",MB_OK);
*/
#define IPC_PLAYFILE 100
/*
IPC_PLAYFILE is sent to the window for each char of a null terminated string of a file to ADD
to the playlist (it doesn't change the playing status)
for example:
char *file = "C:\\download\\booga.mp3";
int x;
for (x = 0; x <= strlen(file); x ++)
PostMessage(hwnd_winamp,WM_WA_IPC,(LPARAM)file[x],IPC_PLAYFILE);
will add "C:\download\booga.mp3" to the end of the playlist
*/
#define IPC_DELETE 101
/*
IPC_DELETE deletes the internal Winamp playlist.
SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_DELETE);
*/
#define IPC_STARTPLAY 102
/*
IPC_STARTPLAY starts the playing.
SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_STARTPLAY);
*/
#define IPC_CHDIR 103
/*
IPC_CHDIR is sent to the window for each char of a null terminated string of a directory to change to
for example:
char *dir = "C:\\Download";
int x;
for (x = 0; x <= strlen(file); x ++)
PostMessage(hwnd_winamp,WM_WA_IPC,(LPARAM)dir[x],IPC_PLAYFILE);
will change the winamp process to "C:\download" (useful for relative pathnames and loading playlists)
*/
#define IPC_ISPLAYING 104
/*
IPC_ISPLAYING returns the status of playback.
If it returns 1, it is playing. if it returns 3, it is paused, if it returns 0, it is not playing.
If it returns something other than 1,3,or 0, something is screwed.
isplaying = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_ISPLAYING);
*/
#define IPC_GETOUTPUTTIME 105
/*
IPC_GETOUTPUTTIME returns the position in milliseconds of the current song.
Returns -1 if not playing or error.
song_pos = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETOUTPUTTIME);
*/
// THESE MIGHT CHANGE in the future :)
//Also, you can send standard WM_COMMAND messages to the Winamp window (for other controls), including
// toggles the EQ window
#define WINAMP_OPTIONS_EQ 40036
// toggles the playlist window
#define WINAMP_OPTIONS_PLEDIT 40040
// turns the volume up a little
#define WINAMP_VOLUMEUP 40058
// turns the volume down a little
#define WINAMP_VOLUMEDOWN 40059
// fast forwards 5 seconds
#define WINAMP_FFWD5S 40060
// rewinds 5 seconds
#define WINAMP_REW5S 40061
// the following are the five main control buttons, with optionally shift or control pressed
// (for the exact functions of each, just try it out)
#define WINAMP_BUTTON1 40044
#define WINAMP_BUTTON2 40045
#define WINAMP_BUTTON3 40046
#define WINAMP_BUTTON4 40047
#define WINAMP_BUTTON5 40048
#define WINAMP_BUTTON1_SHIFT 40144
#define WINAMP_BUTTON2_SHIFT 40145
#define WINAMP_BUTTON3_SHIFT 40146
#define WINAMP_BUTTON4_SHIFT 40147
#define WINAMP_BUTTON5_SHIFT 40148
#define WINAMP_BUTTON1_CTRL 40154
#define WINAMP_BUTTON2_CTRL 40155
#define WINAMP_BUTTON3_CTRL 40156
#define WINAMP_BUTTON4_CTRL 40157
#define WINAMP_BUTTON5_CTRL 40158
// pops up the load file(s) box
#define WINAMP_FILE_PLAY 40029
// pops up the preferences
#define WINAMP_OPTIONS_PREFS 40012
// toggles always on top
#define WINAMP_OPTIONS_AOT 40019
// pops up the about box :)
#define WINAMP_HELP_ABOUT 40041
// hope this helps,
// -Justin [justin@spiffy.org]