[wdmaudiodev] Re: Turn System Sounds On/Off
- From: "Sam Tertzakian" <saekisam@xxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 20 Apr 2004 21:16:30 -0700
Hi, Jerry,
Thank you for the code. This code basically turns the volume of the system
sounds, but what I really need to actually turn them off so that they never
play. (As if the user had chosen "No sounds" in the control panel applet.)
My problem is that the actual playing of the sounds is interfering with our
software, especially when Legacy drivers are installed and KMixer is not
present.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@freelists.
org] On Behalf Of jerry_wang
Sent: Tuesday, April 20, 2004 7:31 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Turn System Sounds On/Off
hi, Sam
Maybe I can help you.
before tow years,i wrote the function as following:
BOOL CompleteMuteFunction(BOOL bGetStatus,BOOL *pbStatus,BOOL bState)
//bGetStatus : whether return the Mixer Status
//pbStatus,if bGetStatus == TRUE,then return Mixer Status on the pointer
//bState, if bState== TRUE,only return current Status, otherwise reset the
Status
{
HMIXER Mutehmx;
MMRESULT mmresult;
MIXERCAPS mxcaps;
MIXERLINE mxl;
MIXERLINECONTROLS mxlc;
MIXERCONTROL mxc;
MIXERCONTROLDETAILS mxcd;
MIXERCONTROLDETAILS_BOOLEAN mxcdb;
mmresult = mixerOpen(&Mutehmx,0,(DWORD)hWndMain,0,MIXER_OBJECTF_MIXER);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
mmresult = mixerGetDevCaps(0,&mxcaps,sizeof(MIXERCAPS));
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
memset((LPVOID)(&mxl),0,sizeof(MIXERLINE));
mxl.cbStruct = sizeof(MIXERLINE);
mxl.dwDestination = 0;
mmresult =
mixerGetLineInfo((HMIXEROBJ)Mutehmx,&mxl,MIXER_GETLINEINFOF_DESTINATION);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
mxlc.cbStruct = sizeof(MIXERLINECONTROLS);
mxlc.dwLineID = mxl.dwLineID;
mxlc.dwControlType = MIXERCONTROL_CONTROLTYPE_MUTE;
mxlc.cControls = mxl.cControls;
mxlc.cbmxctrl = sizeof (MIXERCONTROL);
mxlc.pamxctrl = &mxc;
mmresult = mixerGetLineControls((HMIXEROBJ)Mutehmx, &mxlc,
MIXER_GETLINECONTROLSF_ONEBYTYPE);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = mxc.dwControlID;
mxcd.cChannels = 1;
mxcd.cMultipleItems = mxc.cMultipleItems;
mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_BOOLEAN);
mxcd.paDetails = &mxcdb;
mmresult =
mixerGetControlDetails((HMIXEROBJ)Mutehmx,&mxcd,MIXER_GETCONTROLDETAILSF_VAL
UE);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
Mutehmx=NULL;
return FALSE;
}
if(bState==TRUE)
{
*pbStatus=!mxcdb.fValue;
mixerClose(Mutehmx);
Mutehmx=NULL;
}
else
{
if(pbStatus!=NULL) //得到Mute状态,pbStatus用于控制
{
*pbStatus=mxcdb.fValue;
}
if(bGetStatus)
{
mixerClose(Mutehmx);
Mutehmx=NULL;
return TRUE;
}
mxcdb.fValue = !mxcdb.fValue;
mmresult =
mixerSetControlDetails((HMIXEROBJ)Mutehmx,&mxcd,MIXER_GETCONTROLDETAILSF_VAL
UE);
mixerClose(Mutehmx);
Mutehmx=NULL;
if(pbStatus!=NULL)
*pbStatus=!(*pbStatus);
}
return TRUE;
}
and another function as following:
BOOL ControlVolume(int nVolume,BOOL bGetVolume,DWORD *pdwCurrentVolume)
//nVolume,inc or dec Volume( 1 or -1 )
//bGetVolume,whether return the volume
//if bGetVolume == TRUE, return volume on the pointer
{
UINT mixerID = 0,nUnit;
MMRESULT mmresult;
HMIXER Mutehmx;
MIXERCAPS mxcaps;
MIXERLINE mxl;
MIXERLINECONTROLS mxlc;
MIXERCONTROL mxc;
MIXERCONTROLDETAILS mxcd;
MIXERCONTROLDETAILS_UNSIGNED mxcdu;
mmresult = mixerOpen(&Mutehmx,mixerID,0,0,MIXER_OBJECTF_MIXER);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
mmresult = mixerGetDevCaps(mixerID,&mxcaps,sizeof(MIXERCAPS));
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
mxl.cbStruct = sizeof(MIXERLINE);
mxl.dwDestination = 0;//only get the first
mxl.dwSource = 0;
// mxl.dwComponentType=MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT;
mmresult =
mixerGetLineInfo((HMIXEROBJ)Mutehmx,&mxl,MIXER_GETLINEINFOF_DESTINATION);//M
IXER_GETLINEINFOF_COMPONENTTYPE
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
mxlc.cbStruct = sizeof(MIXERLINECONTROLS);
mxlc.dwLineID = mxl.dwLineID;
mxlc.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME;
mxlc.cControls = mxl.cControls;
mxlc.cbmxctrl = sizeof (MIXERCONTROL);
mxlc.pamxctrl = &mxc;
mmresult = mixerGetLineControls((HMIXEROBJ)Mutehmx, &mxlc,
MIXER_GETLINECONTROLSF_ONEBYTYPE);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
//get volume
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = mxc.dwControlID;
mxcd.cChannels = 1;
mxcd.cMultipleItems = mxc.cMultipleItems;
mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
mxcd.paDetails = &mxcdu;
mmresult =
mixerGetControlDetails((HMIXEROBJ)Mutehmx,&mxcd,MIXER_GETCONTROLDETAILSF_VAL
UE);
if (MMSYSERR_NOERROR != mmresult)
{
mixerClose(Mutehmx);
return FALSE;
}
//now set volume
DWORD dwMin = mxc.Bounds.dwMinimum;
DWORD dwMax = mxc.Bounds.dwMaximum;
nUnit=(dwMax-dwMin)/MAX_VOLUME;
if(bGetVolume)
{
mixerClose(Mutehmx);
if(pdwCurrentVolume!=NULL)
*pdwCurrentVolume=mxcdu.dwValue/nUnit;
return TRUE;
}
if(nVolume==0)
mxcdu.dwValue =dwMin;
else {
nVolume=(INT)(nUnit*nVolume);
mxcdu.dwValue +=nVolume;
if(mxcdu.dwValue>dwMax)
if(nVolume<0)
mxcdu.dwValue = dwMin;
else mxcdu.dwValue=dwMax;
}
if(pdwCurrentVolume!=NULL)
*pdwCurrentVolume=mxcdu.dwValue/nUnit;
mmresult =
mixerSetControlDetails((HMIXEROBJ)Mutehmx,&mxcd,MIXER_GETCONTROLDETAILSF_VAL
UE);
mixerClose(Mutehmx);
return TRUE;
}
I hope that these code can help you .
Jerry
from beijing of P.R.China
2004.4.21
----- Original Message -----
From: "Sam Tertzakian" <thatsamiam@xxxxxxxxxxx>
To: <wdmaudiodev@xxxxxxxxxxxxx>
Sent: Monday, April 19, 2004 8:29 PM
Subject: [wdmaudiodev] Turn System Sounds On/Off
> Hi,
>
> I need to write a routine that runs in user mode that allows me to turn
> System Sounds on or off in 98SE, 2000 and XP. Does anybody know the best
> way to do this?
>
> Thank you for your suggestions.
>
> _________________________________________________________________
> Watch LIVE baseball games on your computer with MLB.TV, included with MSN
> Premium!
>
http://join.msn.com/?page=features/mlb&pgmarket=en-us/go/onm00200439ave/dire
ct/01/
>
> ******************
>
> WDMAUDIODEV addresses:
> Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
> Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
> Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
> Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
>
> URL to WDMAUDIODEV page:
> http://www.wdmaudiodev.de/
>
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.de/
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.de/
Other related posts:
