qt creator项目使用原生Windows进行混声器音量设置（包括录音）

#include "manager.h" #pragma execution_character_set("utf-8") bool CheckError1(int ret,QString msg){ bool Result = ret!=MMSYSERR_NOERROR; if(Result) qDebug()<<msg<<endl; // QMessageBox::information(NULL,"出错",msg);//记录日志信息msg return Result; } bool CheckDevices(manager* manager,QString &msg){ msg = ""; bool Result = manager->GetMicophone()&manager->GetSpeaker(); if(!manager->GetMicophone()&&!manager->GetSpeaker()) msg="你的电脑没有接入耳麦"; else if(!manager->GetMicophone()) msg="你的电脑没有接入麦克风"; else if(!manager->GetSpeaker()) msg="你的电脑没有接入扬声器或耳机"; return Result; } manager::manager(QObject *parent) : QObject(parent) { Speaker = new MixerDevice(ctWaveout,this); SpeakerMute= new MixerDevice(ctWaveoutMute,this); Mic= new MixerDevice(ctMic,this); MicMute= new MixerDevice(ctMicMute,this); } Volume manager::GetMicVolumn() { Volume result; result = this->Mic->volume; result.Value = this->Speaker->getData(); return result; } Volume manager::GetSpeakerVolumn() { Volume result; result = this->Speaker->volume; result.Value = this->Speaker->getData(); return result; } void manager::SetMicVolumn(int Value) { Mic->setData(Value); } void manager::SetSpeakerVolumn(int Value) { Speaker->setData(Value); } bool manager::GetMicophone() { return 1; } bool manager::GetSpeaker() { return 1; } bool manager::GetMicMute() { return MicMute->getData()==1; } void manager::SetMicMute(const bool Value) { MicMute->setData(Value); } bool manager::GetSpeakerMute() { return SpeakerMute->getData()==1; } void manager::SetSpeakerMute(const bool Value) { SpeakerMute->setData(Value); } MixerDevice::MixerDevice(DeviceType type,QObject *parent) { this->type = type; init(); } void MixerDevice::setData(const int Value) { mxcdVolume_Set.dwValue = Value; int ret = mixerSetControlDetails((HMIXEROBJ)m_hMixer, &mxcd_Set, MIXER_SETCONTROLDETAILSF_VALUE); CheckError1(ret,"mixerSetControlDetails failed!"); } void MixerDevice::init() { int mixerNum = (int)mixerGetNumDevs(); int DWComponentType; int DWComponentType2; int DWControlType; int fdwInfo = MIXER_GETLINEINFOF_COMPONENTTYPE; if(type==ctMic||type==ctMicMute) { DWComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN; DWComponentType2 = MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE; if(type==ctMic) DWControlType = MIXERCONTROL_CONTROLTYPE_VOLUME; else { fdwInfo = MIXER_GETLINECONTROLSF_ONEBYTYPE; DWControlType = MIXERCONTROL_CONTROLTYPE_MUTE; } } if(type==ctWaveout||type==ctWaveoutMute) { DWComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS; DWComponentType2 = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT; if(type==ctWaveout) DWControlType = MIXERCONTROL_CONTROLTYPE_VOLUME; else { fdwInfo = MIXER_GETLINECONTROLSF_ONEBYTYPE; DWControlType = MIXERCONTROL_CONTROLTYPE_MUTE; } } for(int i = 0; i < mixerNum; i ++) { //打开Mixer设备 int ret = mixerOpen(&m_hMixer, i, 0, 0, MIXER_OBJECTF_MIXER); if(CheckError1(ret,"mixerOpen failed! " + QString::number(i))) return; //结构体的大小 MixerLine.cbStruct = sizeof(MixerLine); //录制设备总线 if(this->type==ctWaveout||this->type==ctWaveoutMute) { MixerLine.dwComponentType = DWComponentType; ret = mixerGetLineInfo((HMIXEROBJ)m_hMixer, &MixerLine, MIXER_GETLINEINFOF_COMPONENTTYPE); if(CheckError1(ret,"mixerOpen failed! " + QString::number(i))) return; } else{ MixerLine.dwDestination = 0; ret = mixerGetLineInfo((HMIXEROBJ)m_hMixer, &MixerLine,MIXER_GETLINEINFOF_DESTINATION); if(CheckError1(ret,"mixerOpen failed! " + QString::number(i))) return; } if(MixerLine.dwComponentType!=DWComponentType) continue; //将连接数保存 DWORD dwConnections = MixerLine.cConnections; //准备获取麦克风设备的ID for(int j = 0; j < dwConnections; j++ ) { //枚举每一个设备，当Source的ID等于当前的迭代记数 MixerLine.dwSource = j; //根据SourceID获得连接的信息 ret = mixerGetLineInfo((HMIXEROBJ)m_hMixer, &MixerLine,MIXER_GETLINEINFOF_SOURCE); if(CheckError1(ret,"mixerOpen failed! " + QString::number(j))) return; //如果当前设备类型是指定类型，则跳出循环。 if(MixerLine.dwComponentType == DWComponentType2) { lineinfo_Connector = MixerLine; dwLineID = lineinfo_Connector.dwLineID; break; } } //如果没有找到，返回失败。 // if(dwLineID == 0) // continue; ::ZeroMemory(&lineinfo_Dest, sizeof(MIXERLINE)); lineinfo_Dest.cbStruct = sizeof(MIXERLINE); lineinfo_Dest.dwComponentType = DWComponentType; lineinfo_Dest.dwSource = 0; if(this->type==ctWaveout||this->type==ctWaveoutMute) { ret = mixerGetLineInfo((HMIXEROBJ)m_hMixer, &lineinfo_Dest, MIXER_GETLINEINFOF_COMPONENTTYPE); if(CheckError1(ret,"mixerOpen failed! " + QString::number(i))) return; } else{ lineinfo_Dest.dwDestination = 0; ret = mixerGetLineInfo((HMIXEROBJ)m_hMixer, &lineinfo_Dest,MIXER_GETLINEINFOF_DESTINATION); if(CheckError1(ret,"mixerOpen failed! " + QString::number(i))) return; } MIXERCONTROL *tmp = new MIXERCONTROL[lineinfo_Connector.cControls]; mxlc.cbStruct = sizeof(MIXERLINECONTROLS); mxlc.dwLineID = lineinfo_Connector.dwLineID; mxlc.dwControlType = DWControlType; mxlc.cControls = lineinfo_Connector.cControls; mxlc.cbmxctrl = sizeof(MIXERCONTROL); mxlc.pamxctrl = tmp; ret = mixerGetLineControls((HMIXEROBJ)m_hMixer, &mxlc,MIXER_GETLINECONTROLSF_ALL); if(CheckError1(ret,QString(""))) continue; for (int j = 0; j < lineinfo_Connector.cControls; ++j) { if(tmp[j].dwControlType==DWControlType) mxc =&tmp[j]; } //get volume value range now mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS); mxcd.dwControlID = mxc->dwControlID; mxcd.cChannels = 1; mxcd.cMultipleItems = 0; mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED); mxcd.paDetails = &mxcdVolume; ret = mixerGetControlDetails((HMIXEROBJ)m_hMixer, &mxcd, MIXER_GETCONTROLDETAILSF_VALUE); if(CheckError1(ret,"mixerGetControlDetails failed!")) continue; volume.MaxValue = mxc->Bounds.dwMaximum; volume.MinValue = mxc->Bounds.dwMinimum; volume.Value = mxcdVolume.dwValue; //set volume mxcd_Set.cbStruct = sizeof(MIXERCONTROLDETAILS); mxcd_Set.dwControlID = mxc->dwControlID; mxcd_Set.cChannels = 1; mxcd_Set.cMultipleItems = 0; mxcd_Set.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED); mxcd_Set.paDetails = &mxcdVolume_Set; ret = mixerSetControlDetails((HMIXEROBJ)m_hMixer, &mxcd_Set, MIXER_SETCONTROLDETAILSF_VALUE); CheckError1(ret,"mixerSetContr