GBA: Playback events

Macros
#define	MMCB_SONGFINISHED   0x2B
	This event occurs when a module has finished playing the last pattern and has stopped active status. param == 0 if main module, == 1 otherwise (jingle)
#define	MMCB_SONGMESSAGE   0x2A
	This event occurs when an SFx (S3M/IT) or EFx (MOD/XM) effect is parsed from the pattern data. If you have an event handler installed it will be forwarded to there. param will contain 'x' from SFx/EFx.

Detailed Description