BassBASS_ChannelSlideAttribute Method

[DllImportAttribute("bass")]
public static bool BASS_ChannelSlideAttribute(
	int handle,
	BASSAttribute attrib,
	float value,
	int time
)

<DllImportAttribute("bass">]
Public Shared Function BASS_ChannelSlideAttribute ( 
	handle As Integer,
	attrib As BASSAttribute,
	value As Single,
	time As Integer
) As Boolean

Parameters

handle

Type: SystemInt32
The channel handle... a HCHANNEL, HSTREAM or HMUSIC, or HRECORD.

attrib

Type: Un4seen.BassBASSAttribute
The attribute to slide the value of (one of the following, see BASSAttribute):

BASS_ATTRIB_FREQ	Sample rate.
BASS_ATTRIB_PAN	Panning/balance position.
BASS_ATTRIB_VOL	Volume level.
BASS_ATTRIB_EAXMIX	EAX wet/dry mix.
BASS_ATTRIB_MUSIC_AMPLIFY	Amplification level. (HMUSIC)
BASS_ATTRIB_MUSIC_BPM	BPM. (HMUSIC)
BASS_ATTRIB_MUSIC_PANSEP	Pan separation level. (HMUSIC)
BASS_ATTRIB_MUSIC_PSCALER	Position scaler. (HMUSIC)
BASS_ATTRIB_MUSIC_SPEED	Speed. (HMUSIC)
BASS_ATTRIB_MUSIC_VOL_CHAN	A channel volume level. (HMUSIC)
BASS_ATTRIB_MUSIC_VOL_GLOBAL	Global volume level. (HMUSIC)
BASS_ATTRIB_MUSIC_VOL_INST	An instrument/sample volume level. (HMUSIC)
BASS_SLIDE_LOG	Flag: Slide the attribute's value logarthmically rather than linearly. This cannot be used when going from positive to negative or vice versa. An exception is when using a negative value with BASS_ATTRIB_VOL to fade-out and stop.

Other attributes may be supported by add-ons, see the documentation

value

Type: SystemSingle
The new attribute value. See the attribute's documentation for details on the possible values.

time

Type: SystemInt32
The length of time (in milliseconds) that it should take for the attribute to reach the value.

Return Value

This function is similar to BASS_ChannelSetAttribute(Int32, BASSAttribute, Single), except that the attribute is ramped to the value over the specified period of time. Another difference is that the value is not pre-checked. If it is invalid, the slide will simply end early.

If an attribute is already sliding, then the old slide is stopped and replaced by the new one.

BASS_ChannelIsSliding(Int32, BASSAttribute) can be used to check if an attribute is currently sliding. A BASS_SYNC_SLIDE sync can also be set via BASS_ChannelSetSync(Int32, BASSSync, Int64, SYNCPROC, IntPtr), to be triggered at the end of a slide. The sync will not be triggered in the case of an existing slide being replaced by a new one.

Attribute slides are unaffected by whether the channel is playing, paused or stopped. They carry on regardless.

Bass.BASS_ChannelSlideAttribute(channel, BASSAttribute.BASS_ATTRIB_VOL, 0f, 1000);

Bass.BASS_ChannelSlideAttribute(channel, BASSAttribute.BASS_ATTRIB_VOL, 0F, 1000)

Reference