private float GetValue(BASSAttribute attr)
{
float value = 0;
if (!Bass.BASS_ChannelGetAttribute(_handle, BASSAttribute.BASS_ATTRIB_FREQ, ref value))
throw new BASSException();
return value;
}
/// <summary>
/// 获取播放声道特性值
/// </summary>
/// <param name="attri">要获取的特性</param>
/// <returns>值</returns>
public float GetChannelAttribute(BASSAttribute attri)
{
if (this._handle == -1)
{
return(0f);
}
return(Bass.BASS_ChannelGetAttribute(this._handle, attri));
}
/// <summary>
/// 设置播放声道特性值
/// </summary>
/// <param name="attri">要设置的特性</param>
/// <param name="value">值</param>
public void SetChannelAttribute(BASSAttribute attri, float value)
{
if (this._handle == -1)
{
return;
}
Bass.BASS_ChannelSetAttribute(this._handle, attri, value);
}
/// <summary>
/// Sets the value of a channel's attribute
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD</param>
/// <param name="attribute">The attribute to set the value of... one of the following.
/// BASS_ATTRIB_SCANINFO Scanned info. (HSTREAM only)
/// other attributes may be supported by add-ons, see the documentation</param>
/// <param name="value">The new attribute data</param>
/// <param name="size">The size of the attribute data</param>
public static void ChannelSetAttributeEx(int handle, BASSAttribute attribute, IntPtr value, int size)
{
bool result = NativeMethods.BASS_ChannelSetAttributeEx(handle, attribute, value, size);
//If successful, TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code.
if (!result)
{
throw new WavException(BassErrorCode.GetErrorInfo());
}
}
/// <summary>
/// Slides a channel's attribute from its current value to a new value
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HSTREAM, HMUSIC, or HRECORD</param>
/// <param name="attribute">The attribute to slide the value of... one of the following,other attributes may be supported by add-ons, see the documentation</param>
/// <param name="value">The new attribute value. See the attribute's documentation for details on the possible values. </param>
/// <param name="time">The length of time (in milliseconds) that it should take for the attribute to reach the value</param>
public static void ChannelSlideAttribute(int handle, BASSAttribute attribute, float value, int time)
{
bool result = NativeMethods.BASS_ChannelSlideAttribute(handle, attribute, value, time);
//If successful, then TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code
if (!result)
{
throw new WavException(BassErrorCode.GetErrorInfo());
}
}
private void btnGetValue_Click(object sender, EventArgs e)
{
try
{
BASSAttribute attri = DropdownBoxHelper.GetEnumFromComboBox <BASSAttribute>(comboBoxBASSAttribute);
txtInfo.Text = wavePlayer1.GetChannelAttribute(attri).ToString();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// Retrieves the value of a channel's attribute
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD</param>
/// <param name="attribute">The attribute to set the value of... one of the following,other attributes may be supported by add-ons, see the documentation</param>
/// <param name="value">The new attribute value. See the attribute's documentation for details on the possible values. </param>
/// <param name="size">The size of the attribute data... 0 = get the size of the attribute without getting the data. </param>
/// <returns>If successful, then TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code</returns>
public static int ChannelGetAttributeEx(int handle, BASSAttribute attribute, IntPtr value, int size)
{
int result = NativeMethods.BASS_ChannelGetAttributeEx(handle, attribute, value, size);
//If successful, the size of the attribute data is returned, else 0 is returned. Use BASS_ErrorGetCode to get the error code.
if (result == 0)
{
throw new WavException(BassErrorCode.GetErrorInfo());
}
return(result);
}
/// <summary>
/// Retrieves the value of a channel's attribute.
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD</param>
/// <param name="attribute">The attribute to get the value of... one of the following.</param>
/// <returns>Pointer to a variable to receive the attribute value</returns>
public static float ChannelGetAttribute(int handle, BASSAttribute attribute)
{
float value = default(float);
bool result = NativeMethods.BASS_ChannelGetAttribute(handle, attribute, ref value);
//If successful, then TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code.
if (!result)
{
throw new WavException(BassErrorCode.GetErrorInfo());
}
return(value);
}
private void btnSetValue_Click(object sender, EventArgs e)
{
try
{
BASSAttribute attri = DropdownBoxHelper.GetEnumFromComboBox <BASSAttribute>(comboBoxBASSAttribute);
float value = (float)(numAttriValue.Value / 100);
wavePlayer1.SetChannelAttribute(attri, value);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// Retrieves the value of a channel's attribute
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD</param>
/// <param name="attrib">The attribute to set the value of... one of the following,other attributes may be supported by add-ons, see the documentation</param>
/// <param name="value">The new attribute value. See the attribute's documentation for details on the possible values. </param>
/// <param name="size">The size of the attribute data... 0 = get the size of the attribute without getting the data. </param>
/// <returns>If successful, then TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code</returns>
public static int BASS_ChannelGetAttributeEx(int handle, BASSAttribute attrib, IntPtr value, int size)
{
int result;
if (Environment.Is64BitProcess)
{
result = BassX64.BASS_ChannelGetAttributeEx(handle, attrib, value, size);
}
else
{
result = BassX86.BASS_ChannelGetAttributeEx(handle, attrib, value, size);
}
return(result);
}
/// <summary>
/// Slides a channel's attribute from its current value to a new value
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HSTREAM, HMUSIC, or HRECORD</param>
/// <param name="attrib">The attribute to slide the value of... one of the following,other attributes may be supported by add-ons, see the documentation</param>
/// <param name="value">The new attribute value. See the attribute's documentation for details on the possible values. </param>
/// <param name="duration">The length of time (in milliseconds) that it should take for the attribute to reach the value</param>
/// <returns>If successful, then TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code</returns>
public static void BASS_ChannelSlideAttribute(int handle, BASSAttribute attrib, float value, int duration)
{
bool result = false;
if (Environment.Is64BitProcess)
{
result = BassX64.BASS_ChannelSlideAttribute(handle, attrib, value, duration);
}
else
{
result = BassX86.BASS_ChannelSlideAttribute(handle, attrib, value, duration);
}
if (!result)
{
throw new ApplicationException("BASS_ChannelSlideAttribute Fail," + BassErrorCode.GetErrorInfo());
}
}
/// <summary>
/// Sets the value of a channel's attribute
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD</param>
/// <param name="attrib">The attribute to set the value of... one of the following.
/// BASS_ATTRIB_SCANINFO Scanned info. (HSTREAM only)
/// other attributes may be supported by add-ons, see the documentation</param>
/// <param name="value">The new attribute data</param>
/// <param name="size">The size of the attribute data</param>
public static void BASS_ChannelSetAttributeEx(int handle, BASSAttribute attrib, IntPtr value, int size)
{
bool result = false;
if (Environment.Is64BitProcess)
{
result = BassX64.BASS_ChannelSetAttributeEx(handle, attrib, value, size);
}
else
{
result = BassX86.BASS_ChannelSetAttributeEx(handle, attrib, value, size);
}
if (!result)
{
throw new ApplicationException("BASS_ChannelSetAttributeEx Fail," + BassErrorCode.GetErrorInfo());
}
}
/// <summary>
/// Retrieves the value of a channel's attribute
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HMUSIC, HSTREAM, or HRECORD</param>
/// <param name="attrib">The attribute to set the value of... one of the following,other attributes may be supported by add-ons, see the documentation</param>
public static float BASS_ChannelGetAttribute(int handle, BASSAttribute attrib)
{
float value = 0;
bool result = false;
if (Environment.Is64BitProcess)
{
result = BassX64.BASS_ChannelGetAttribute(handle, attrib, ref value);
}
else
{
result = BassX86.BASS_ChannelGetAttribute(handle, attrib, ref value);
}
if (!result)
{
throw new ApplicationException("BASS_ChannelGetAttribute Fail," + BassErrorCode.GetErrorInfo());
}
return(value);
}
public static extern bool BASS_ChannelIsSliding(int handle, BASSAttribute attrib);
private void SetValue(BASSAttribute attr, float value)
{
if (!Bass.BASS_ChannelSetAttribute(_handle, BASSAttribute.BASS_ATTRIB_FREQ, value))
throw new BASSException();
}
static extern bool BASS_ChannelSetAttribute(int handle, BASSAttribute attr,float pitch);
/// <summary>
/// Sets an attribute value of the current channel (specified in the attribute property).
/// </summary>
/// <param name="attribute">Channel attribute</param>
/// <param name="value">Value</param>
public void SetAttribute(BASSAttribute attribute, float value)
{
// Set attribute value
if (!Bass.BASS_ChannelSetAttribute(handle, attribute, value))
{
// Check for error
Base.CheckForError();
}
}
public static extern bool BASS_ChannelIsSliding(int handle, BASSAttribute attrib);
public static extern bool BASS_ChannelSetAttributeEx(int handle, BASSAttribute attrib, IntPtr value, int size);
/// <summary>
/// Checks if an attribute (or any attribute) of a sample, stream, or MOD music is sliding
/// </summary>
/// <param name="handle">The channel handle... a HCHANNEL, HSTREAM or HMUSIC</param>
/// <param name="attribute">The attribute to check for sliding... one of the following, or 0 for any attribute.
/// BASS_ATTRIB_EAXMIX EAX wet/dry mix.
/// BASS_ATTRIB_FREQ Sample rate.
/// BASS_ATTRIB_PAN Panning/balance position.
/// BASS_ATTRIB_VOL Volume level.
/// BASS_ATTRIB_MUSIC_AMPLIFY Amplification level. (HMUSIC only)
/// 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)
/// other attributes may be supported by add-ons, see the documentation.</param>
/// <returns>If the attribute is sliding, then TRUE is returned, else FALSE is returned.</returns>
public static bool ChannelIsSliding(int handle, BASSAttribute attribute)
{
return(NativeMethods.BASS_ChannelIsSliding(handle, attribute));
}
public static extern bool BASS_ChannelSlideAttribute(int handle, BASSAttribute attrib, float value, int time);
public static extern bool BASS_ChannelSlideAttribute(int handle, BASSAttribute attrib, float value, int time);
public static extern bool BASS_ChannelGetAttribute(int handle, BASSAttribute attrib, ref float value);
public static extern bool BASS_ChannelSetAttribute(int handle, BASSAttribute attrib, float value);
