本文整理汇总了C++中LPDIRECTSOUNDBUFFER::GetFrequency方法的典型用法代码示例。如果您正苦于以下问题：C++ LPDIRECTSOUNDBUFFER::GetFrequency方法的具体用法？C++ LPDIRECTSOUNDBUFFER::GetFrequency怎么用？C++ LPDIRECTSOUNDBUFFER::GetFrequency使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LPDIRECTSOUNDBUFFER的用法示例。
在下文中一共展示了LPDIRECTSOUNDBUFFER::GetFrequency方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DXUT_ERR
//-----------------------------------------------------------------------------
// Name: CSound::Play3D()
// Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
// in the dwFlags to loop the sound
//-----------------------------------------------------------------------------
HRESULT CSound::Play3D( LPDS3DBUFFER p3DBuffer, DWORD dwPriority, DWORD dwFlags, LONG lFrequency )
{
HRESULT hr;
BOOL bRestored;
DWORD dwBaseFrequency;
if( m_apDSBuffer == NULL )
return CO_E_NOTINITIALIZED;
LPDIRECTSOUNDBUFFER pDSB = GetFreeBuffer();
if( pDSB == NULL )
return DXUT_ERR( L"GetFreeBuffer", E_FAIL );
// Restore the buffer if it was lost
if( FAILED( hr = RestoreBuffer( pDSB, &bRestored ) ) )
return DXUT_ERR( L"RestoreBuffer", hr );
if( bRestored )
{
// The buffer was restored, so we need to fill it with new data
if( FAILED( hr = FillBufferWithSound( pDSB, FALSE ) ) )
return DXUT_ERR( L"FillBufferWithSound", hr );
}
if( m_dwCreationFlags & DSBCAPS_CTRLFREQUENCY )
{
pDSB->GetFrequency( &dwBaseFrequency );
pDSB->SetFrequency( dwBaseFrequency + lFrequency );
}
// QI for the 3D buffer
LPDIRECTSOUND3DBUFFER pDS3DBuffer;
hr = pDSB->QueryInterface( IID_IDirectSound3DBuffer, ( VOID** )&pDS3DBuffer );
if( SUCCEEDED( hr ) )
{
hr = pDS3DBuffer->SetAllParameters( p3DBuffer, DS3D_IMMEDIATE );
if( SUCCEEDED( hr ) )
{
hr = pDSB->Play( 0, dwPriority, dwFlags );
}
pDS3DBuffer->Release();
}
return hr;
}示例2: DXTRACE_ERR
//-----------------------------------------------------------------------------
// Name: CDSSound::Play3D()
// Desc: Plays the sound using voice management flags. Pass in DSBPLAY_LOOPING
// in the dwFlags to loop the sound
//-----------------------------------------------------------------------------
HRESULT CDSSound::Play3D(LPDS3DBUFFER p3DBuffer, DWORD dwPriority, DWORD dwFlags, LONG lVolume, LONG lFrequency, DWORD& outIndex)
{
HRESULT hr;
BOOL bRestored;
DWORD dwBaseFrequency;
if (!m_apDSBuffer) return CO_E_NOTINITIALIZED;
LPDIRECTSOUNDBUFFER pDSB = GetFreeBuffer(outIndex);
if (!pDSB) return DXTRACE_ERR(TEXT("GetFreeBuffer"), E_FAIL);
// Restore the buffer if it was lost
if (FAILED(hr = RestoreBuffer(pDSB, &bRestored)))
return DXTRACE_ERR(TEXT("RestoreBuffer"), hr);
if (bRestored)
if (FAILED(hr = FillBufferWithSound(pDSB, FALSE)))
return DXTRACE_ERR(TEXT("FillBufferWithSound"), hr);
if (m_dwCreationFlags & DSBCAPS_CTRLFREQUENCY)
{
pDSB->GetFrequency(&dwBaseFrequency);
pDSB->SetFrequency(dwBaseFrequency + lFrequency);
}
if (m_dwCreationFlags & DSBCAPS_CTRLVOLUME) pDSB->SetVolume(lVolume);
// QI for the 3D buffer
LPDIRECTSOUND3DBUFFER pDS3DBuffer;
hr = pDSB->QueryInterface(IID_IDirectSound3DBuffer, (VOID**) &pDS3DBuffer);
if (SUCCEEDED(hr))
{
hr = pDS3DBuffer->SetAllParameters(p3DBuffer, DS3D_IMMEDIATE);
if (SUCCEEDED(hr))
{
hr = pDSB->SetCurrentPosition(0);
hr = pDSB->Play(0, dwPriority, dwFlags);
}
pDS3DBuffer->Release();
}
return hr;
}