怎样判断前是否为静音模式？

[dl_hum]

rt

[儿大不由爷]

LONG WINAPI lineGetMuteState(
HLINE hLine,
LPDWORD lpdwState
);

行不

[ppc_2008]

waveOutSetVolume();
A value of 0xFFFF represents full volume, and a value of 0x0000 is silence

[zhaojiangang]

音量最低 不等于 静音 吧!

private enum SoundEvent
{
All = 0,
RingLine1,
RingLine2,
KnownCallerLine1,
RoamingLine1,
RingVoip
}

private enum SoundType
{
On = 0,
File = 1,
Vibrate = 2,
None = 3
}

private struct SNDFILEINFO
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string szPathNameNative;

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string szDisplayNameNative;

public SoundType SstType;
}

[DllImport("aygshell.dll", SetLastError = true)]
private static extern uint SndSetSound(SoundEvent seSoundEvent, ref SNDFILEINFO pSoundFileInfo, bool fSuppressUI);

[DllImport("aygshell.dll", SetLastError = true)]
private static extern uint SndGetSound(SoundEvent seSoundEvent, ref SNDFILEINFO pSoundFileInfo);
//设置静音
public int SetRingerOff()
{
SNDFILEINFO sfi = new SNDFILEINFO();
sfi.SstType = SoundType.None;
uint ret = SndSetSound(SoundEvent.All, ref sfi, true);
if(ret != 0)
{
return 1;
}
return 0;
}


如何读取, 应该能想到了吧