wa_calls.h

//with WM_USER
#define IPC_STARTPLAY	102
#define IPC_ISPLAYING	104
#define IPC_SETVOLUME	122

//with WM_COPYDATA
#define IPC_PLAYFILE	100

//with WM_COMMAND
#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