def SetControlValue(hmixer, mixerControl, value):
"""
Sets the volumne from the pointer of the object passed through
' [Note: original source taken from MSDN
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q178456&]
This function sets the value for a volume control. Returns True if
successful
"""
valueDetails = MIXERCONTROLDETAILS_UNSIGNED()
valueDetails.dwValue = value
mixerControlDetails = MIXERCONTROLDETAILS()
mixerControlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS)
mixerControlDetails.item = 0
mixerControlDetails.dwControlID = mixerControl.dwControlID
mixerControlDetails.cbDetails = sizeof(valueDetails)
mixerControlDetails.paDetails = addressof(valueDetails)
mixerControlDetails.cChannels = 1
# Set the control value
rc = mixerSetControlDetails(hmixer, byref(mixerControlDetails), 0)
if rc != MMSYSERR_NOERROR:
raise SoundMixerException()
def SetControlValue(self, mixer, controlId, value):
valueDetails = MIXERCONTROLDETAILS_UNSIGNED()
valueDetails.dwValue = value
mixerControlDetails = MIXERCONTROLDETAILS()
mixerControlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS)
mixerControlDetails.item = 0
mixerControlDetails.dwControlID = controlId
mixerControlDetails.cbDetails = sizeof(valueDetails)
mixerControlDetails.paDetails = addressof(valueDetails)
mixerControlDetails.cChannels = 1
rc = mixerSetControlDetails(mixer, byref(mixerControlDetails), 0)
if rc != MMSYSERR_NOERROR:
raise SoundMixerException()
def SetControlValue(self, mixer, controlId, value):
valueDetails = MIXERCONTROLDETAILS_UNSIGNED()
valueDetails.dwValue = value
mixerControlDetails = MIXERCONTROLDETAILS()
mixerControlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS)
mixerControlDetails.item = 0
mixerControlDetails.dwControlID = controlId
mixerControlDetails.cbDetails = sizeof(valueDetails)
mixerControlDetails.paDetails = addressof(valueDetails)
mixerControlDetails.cChannels = 1
rc = mixerSetControlDetails(mixer, byref(mixerControlDetails), 0)
if rc != MMSYSERR_NOERROR:
raise SoundMixerException()
def GetControlValue(hmixer, mixerControl):
valueDetails = MIXERCONTROLDETAILS_UNSIGNED()
mixerControlDetails = MIXERCONTROLDETAILS()
mixerControlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS)
mixerControlDetails.item = 0
mixerControlDetails.dwControlID = mixerControl.dwControlID
mixerControlDetails.cbDetails = sizeof(valueDetails)
mixerControlDetails.paDetails = addressof(valueDetails)
mixerControlDetails.cChannels = 1
# Get the control value
rc = mixerGetControlDetails(hmixer, byref(mixerControlDetails), 0)
if rc != MMSYSERR_NOERROR:
raise SoundMixerException()
return valueDetails.dwValue