//设置音量值
bool WINAPI SetVolume(LONG vol)
{
bool Result=false; //用于判断函数是否执行成功
MIXERCONTROL volCtrl;
HMIXER hmixer;
if(mixerOpen(&hmixer, 0, 0, 0, 0)) return 0;
if(GetVolumeControl(hmixer,MIXERLINE_COMPONENTTYPE_DST_SPEAKERS,MIXERCONTROL_CONTROLTYPE_VOLUME,&volCtrl))
{
int ChangeValue=volCtrl.Bounds.lMaximum/INTERVAL;
int TotalValue=ChangeValue*vol;
if(SetVolumeValue(hmixer,&volCtrl,TotalValue))
Result=true;
}
mixerClose(hmixer);
return Result;
}
//获得音量部分, 目前只支持XP的主音量, 要完美支持看D:\workspace\DownLoadCode\VolumeCtrl
int CMyVolume::GetVolume()
{
long device = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
unsigned int rt = 0;
MIXERCONTROL volCtrl;
HMIXER hmixer;
if ( mixerOpen(&hmixer, 0, 0, 0, 0) != MMSYSERR_NOERROR )
{
return 0;
}
GetVolumeControl(hmixer, device, MIXERCONTROL_CONTROLTYPE_VOLUME, &volCtrl);
int iValue = GetVolumeValue(hmixer, &volCtrl);
iValue = iValue * MAX_VOL / volCtrl.Bounds.lMaximum;
return iValue;
}
//设置/开启 静音
BOOL CMyVolume::SetMute(BOOL bMute)
{
HMIXER hmixer;
if ( mixerOpen(&hmixer, 0, 0, 0, 0) )
{
return FALSE;
}
long device = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
MIXERCONTROL volCtrl;
GetVolumeControl(hmixer, device, MIXERCONTROL_CONTROLTYPE_MUTE, &volCtrl);
BOOL rc(FALSE);
if (SetMuteValue(hmixer, &volCtrl, (BOOL)bMute))
{
rc = TRUE;
}
mixerClose(hmixer);
return rc;
}
//返回音量值
unsigned WINAPI GetVolume()
{
unsigned rt=0;
MIXERCONTROL volCtrl;
HMIXER hmixer;
if(mixerOpen(&hmixer, 0, 0, 0, 0)) return 0;
MIXERLINE mxl = {0};
mxl.cbStruct = sizeof(mxl);
mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
MMRESULT mr = mixerGetLineInfo((HMIXEROBJ)hmixer, &mxl, MIXER_GETLINEINFOF_DESTINATION);
mixerGetLineControls()
if(!GetVolumeControl(hmixer, MIXERLINE_COMPONENTTYPE_DST_SPEAKERS,MIXERCONTROL_CONTROLTYPE_VOLUME,&volCtrl))
return 0;
int ChangeValue=volCtrl.Bounds.lMaximum/INTERVAL; //每一次调用函数改变的音量值
rt=GetVolumeValue(hmixer,&volCtrl)/ChangeValue; //GetVolumeValue得到的是具体值
mixerClose(hmixer);
return rt;
}
BOOL CMyVolume::SetValue(int nVol)
{
BOOL bSet = FALSE;
HMIXER hmier;
if (mixerOpen(&hmier, 0, 0, 0, 0))
{
return FALSE;
}
long device = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
MIXERCONTROL volCtrl;
BOOL bRet(FALSE);
if ( GetVolumeControl(hmier, device, MIXERCONTROL_CONTROLTYPE_VOLUME, &volCtrl) )
{
nVol = nVol* volCtrl.Bounds.lMaximum/MAX_VOL;
if ( SetVolumeValue(hmier,&volCtrl, nVol ) )
{
bRet = TRUE;
}
}
mixerClose(hmier);
return bRet;
}
VOID
InitVolumeControls(HWND hwndDlg, PGLOBAL_DATA pGlobalData)
{
UINT NumMixers;
MIXERCAPS mxc;
TCHAR szNoDevices[256];
CheckDlgButton(hwndDlg,
IDC_ICON_IN_TASKBAR,
GetSystrayVolumeIconState() ? BST_CHECKED : BST_UNCHECKED);
LoadString(hApplet, IDS_NO_DEVICES, szNoDevices, _countof(szNoDevices));
NumMixers = mixerGetNumDevs();
if (!NumMixers)
{
EnableWindow(GetDlgItem(hwndDlg, IDC_VOLUME_TRACKBAR), FALSE);
EnableWindow(GetDlgItem(hwndDlg, IDC_MUTE_CHECKBOX), FALSE);
EnableWindow(GetDlgItem(hwndDlg, IDC_ADVANCED_BTN), FALSE);
EnableWindow(GetDlgItem(hwndDlg, IDC_SPEAKER_VOL_BTN), FALSE);
EnableWindow(GetDlgItem(hwndDlg, IDC_ADVANCED2_BTN), FALSE);
SendDlgItemMessage(hwndDlg, IDC_MUTE_ICON, STM_SETIMAGE, IMAGE_ICON, (LPARAM)pGlobalData->hIconNoHW);
SetDlgItemText(hwndDlg, IDC_DEVICE_NAME, szNoDevices);
return;
}
if (mixerOpen(&pGlobalData->hMixer, 0, PtrToUlong(hwndDlg), 0, MIXER_OBJECTF_MIXER | CALLBACK_WINDOW) != MMSYSERR_NOERROR)
{
MessageBox(hwndDlg, _T("Cannot open mixer"), NULL, MB_OK);
return;
}
ZeroMemory(&mxc, sizeof(MIXERCAPS));
if (mixerGetDevCaps(PtrToUint(pGlobalData->hMixer), &mxc, sizeof(MIXERCAPS)) != MMSYSERR_NOERROR)
{
MessageBox(hwndDlg, _T("mixerGetDevCaps failed"), NULL, MB_OK);
return;
}
GetMuteControl(pGlobalData);
GetMuteState(pGlobalData);
if (pGlobalData->muteVal)
{
SendDlgItemMessage(hwndDlg, IDC_MUTE_CHECKBOX, BM_SETCHECK, (WPARAM)BST_CHECKED, (LPARAM)0);
SendDlgItemMessage(hwndDlg, IDC_MUTE_ICON, STM_SETIMAGE, IMAGE_ICON, (LPARAM)pGlobalData->hIconMuted);
}
else
{
SendDlgItemMessage(hwndDlg, IDC_MUTE_CHECKBOX, BM_SETCHECK, (WPARAM)BST_UNCHECKED, (LPARAM)0);
SendDlgItemMessage(hwndDlg, IDC_MUTE_ICON, STM_SETIMAGE, IMAGE_ICON, (LPARAM)pGlobalData->hIconUnMuted);
}
GetVolumeControl(pGlobalData);
GetVolumeValue(pGlobalData);
SendDlgItemMessage(hwndDlg, IDC_DEVICE_NAME, WM_SETTEXT, 0, (LPARAM)mxc.szPname);
SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETRANGE, (WPARAM)TRUE,
(LPARAM)MAKELONG(pGlobalData->volumeMinimum, pGlobalData->volumeMaximum/VOLUME_DIVIDER));
SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETPAGESIZE, (WPARAM)FALSE, (LPARAM)1);
SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETSEL, (WPARAM)FALSE,
(LPARAM)MAKELONG(pGlobalData->volumeMinimum, pGlobalData->volumeValue/VOLUME_DIVIDER));
SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETPOS, (WPARAM)TRUE, (LPARAM)pGlobalData->volumeValue/VOLUME_DIVIDER);
}
