C++ (Cpp) IDirectSoundBuffer8_SetVolume示例

示例#1

文件： snddx.c 项目： snowasnow/DeSmuME

void SNDDXSetVolume(int volume)
{
   if (!lpDSB2) return ;     /* might happen when changing sounddevice on the fly, caused a gpf */
   soundvolume = (((LONG)volume) - 100) * 100;
   if (!issoundmuted)
      IDirectSoundBuffer8_SetVolume (lpDSB2, soundvolume);
}

示例#2

文件： px_win_ds.c 项目： dhull2/squeezeslave

void Px_SetPCMOutputVolume( PxMixer *mixer, PxVolume volume )
{
   PxInfo *info = (PxInfo *)mixer;

   /* convert volume (range 0.0 - 1.0) to hundredths of a dB */
   long dB = ((log(volume) / log(10.0) * 20.0)) * 100;

   IDirectSoundBuffer8_SetVolume(info->output, dB);
}

示例#3

文件： snddx.c 项目： snowasnow/DeSmuME

void SNDDXUnMuteAudio()
{
   issoundmuted = 0;
   IDirectSoundBuffer8_SetVolume (lpDSB2, soundvolume);
}

示例#4

文件： snddx.c 项目： snowasnow/DeSmuME

void SNDDXMuteAudio()
{
   issoundmuted = 1;
   IDirectSoundBuffer8_SetVolume (lpDSB2, DSBVOLUME_MIN);
}