ZPlay.SlideVolume Method

Slide internal volume.

public bool SlideVolume(TTimeFormat TimeFormatStart, ref TStreamTime TimeStart, int StartVolumeLeft, int StartVolumeRight, TTimeFormat TimeFormatEnd, ref TStreamTime TimeEnd, int EndVolumeLeft, int EndVolumeRight);

Parameters

Parameters	Description
TTimeFormat TimeFormatStart	Time format of TimeStart parameter. With this parameter you need to specify which member of TStreamTime is valid.
ref TStreamTime TimeStart	reference to TStreamTime structure specifying starting slide position.
int StartVolumeLeft	Start volume for left channel. Range is from 0 to 100.
int StartVolumeRight	Start volume for right channel. Range is from 0 to 100.
TTimeFormat TimeFormatEnd	Time format of TimeEnd parameter. With this parameter you need to specify which member of TStreamTime is valid.
ref TStreamTime TimeEnd	Reference to TStreamTime structure specifying ending slide position.
int EndVolumeLeft	End volume for left channel. Range is from 0 to 100.
int EndVolumeRight	End volume for right channel. Range is from 0 to 100.

Return Values

Return Values	Description
True	All OK.
False	Error. To get error message read here.

Remarks

This function will slide change player volume from starting volume to ending volume in specified interval.

Note: Accuracy of pTimeStart and pTimeEnd is not up to sample. Accuracy is about 50 ms. So, you can't fade volume with sample precision.

Note: SetPlayerVolume functions will cancel slide effect.

Example

int left = 0;
int right = 0;
TStreamTime startpos = new TStreamTime();
TStreamTime endpos = new TStreamTime();

player.GetPlayerVolume(ref left, ref right);
player.GetPosition(ref startpos);
endpos.sec = System.Convert.ToUInt32(startpos.sec + 5);
player.SlideVolume(TTimeFormat.tfSecond, ref startpos, left, right, TTimeFormat.tfSecond, ref endpos, 0, 0);

Group

ZPlay Methods

Web: http://libzplay.sourceforge.net/

Email: zcindori@inet.hr

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