?
ich hab es jetzt so probiert.
#include <iostream>
#include <windows.h>
#include <Mmsystem.h>
// Remeber to Link WinMM.lib!
// Written by Letters
using namespace std;
int main()
{
UINT MDevNum = mixerGetNumDevs();
cout << MDevNum << " Mixer Devices\n";
MIXERCAPS MCapabilities;
HMIXER hMixer;
for ( UINT i = 0; i < MDevNum; i++ ){
fill( (char*)&MCapabilities, (char*)&MCapabilities + sizeof( MIXERCAPS ), 0 );
if ( mixerGetDevCaps( i, &MCapabilities, sizeof( MIXERCAPS ) ) == MMSYSERR_NOERROR ){
cout << "Information for Dev: " << i << endl;
cout << MCapabilities.szPname << endl;
if ( mixerOpen( &hMixer, i, 0, 0, MIXER_OBJECTF_WAVEIN ) == MMSYSERR_NOERROR ){
cout << "Device Opened\n";
MIXERLINE ML;
fill( (char*)&ML, (char*)&ML + sizeof( MIXERLINE ), 0 );
ML.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
ML.cbStruct = sizeof( MIXERLINE );
if ( mixerGetLineInfo( (HMIXEROBJ)hMixer, &ML, MIXER_GETLINEINFOF_COMPONENTTYPE ) == MMSYSERR_NOERROR ){
cout << "Recieved Mixer Line\n";
cout << "Has " << ML.cConnections << " Connections\n";
MIXERLINECONTROLS MLC;
MIXERCONTROL MC;
for ( UINT n = 0; n < ML.cConnections; n++ ){
fill( (char*)&MLC, (char*)&MLC + sizeof( MIXERLINECONTROLS ), 0 );
fill( (char*)&MC, (char*)&MC + sizeof( MIXERCONTROL ), 0 );
cout << "Setting Mixer Line: " << n << endl;
MLC.cbStruct = sizeof( MIXERLINECONTROLS );
MLC.dwLineID = ML.dwLineID;
MLC.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME;
MLC.cControls = 1;
MLC.pamxctrl = &MC;
MLC.cbmxctrl = sizeof( MIXERCONTROL );
if ( mixerGetLineControls( (HMIXEROBJ)hMixer, &MLC, MIXER_GETLINECONTROLSF_ONEBYTYPE) == MMSYSERR_NOERROR ){
MIXERCONTROLDETAILS MCD;
MIXERCONTROLDETAILS_UNSIGNED Volume;
fill( (char*)&MCD, (char*)&MCD + sizeof( MIXERCONTROLDETAILS ), 0 );
fill( (char*)&Volume, (char*)&Volume + sizeof( MIXERCONTROLDETAILS_UNSIGNED ), 0 );
MCD.dwControlID = MLC.dwControlID;
MCD.cbStruct = sizeof( MIXERCONTROLDETAILS );
MCD.cMultipleItems = 0;
MCD.cbDetails = sizeof( MIXERCONTROLDETAILS_UNSIGNED );
MCD.paDetails = &Volume;
MCD.cChannels = 1;
Volume.dwValue = 32000;
//if ( mixerSetControlDetails( (HMIXEROBJ)hMixer, &MCD, MIXER_SETCONTROLDETAILSF_VALUE ) == MMSYSERR_NOERROR )
int Ret = mixerSetControlDetails( (HMIXEROBJ)hMixer, &MCD, MIXER_SETCONTROLDETAILSF_VALUE );
if ( Ret == MMSYSERR_NOERROR )
cout << "\tVolume successfuly set\n";
else cout << "\tCouldn't set volume Error: 0x" << hex << Ret << endl;
}else cout << "\tCouldn't retrieve one by type\n";
}
}else cout << "\tCouldn't recieve Mixer Line\n";
mixerClose( hMixer );
}else cout << "\tCouldn't open Mixer\n";
}else cout << "\tCouldn't retrieve Mixer capabilities\n";
}
return 0;
}
leider endet das mit einem "Couldn't set volume" und dem error code 401h
