Source code of Windows XP (NT5)
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// DirectSoundFXDistortionPage.cpp : Implementation of CDirectSoundFXDistortionPage
#include "stdafx.h"
#include "Dsdmoprp.h"
#include "DirectSoundFXDistortionPage.h"
/////////////////////////////////////////////////////////////////////////////
// CDirectSoundFXDistortionPage
CDirectSoundFXDistortionPage::CDirectSoundFXDistortionPage()
{
m_dwTitleID = IDS_TITLEDirectSoundFXDistortionPage;
m_dwHelpFileID = IDS_HELPFILEDirectSoundFXDistortionPage;
m_dwDocStringID = IDS_DOCSTRINGDirectSoundFXDistortionPage;
m_rgpHandlers[0] = &m_sliderGain;
m_rgpHandlers[1] = &m_sliderEdge;
m_rgpHandlers[2] = &m_sliderPostEQCenterFrequency;
m_rgpHandlers[3] = &m_sliderPostEQBandwidth;
m_rgpHandlers[4] = &m_sliderPreLowpassCutoff;
m_rgpHandlers[5] = NULL;
}
STDMETHODIMP CDirectSoundFXDistortionPage::SetObjects(ULONG nObjects, IUnknown **ppUnk)
{
if (nObjects < 1 || nObjects > 1)
return E_UNEXPECTED;
HRESULT hr = ppUnk[0]->QueryInterface(IID_IDirectSoundFXDistortion, reinterpret_cast<void**>(&m_IDSFXDistortion));
return hr;
}
STDMETHODIMP CDirectSoundFXDistortionPage::Apply(void)
{
if (!m_IDSFXDistortion)
return E_UNEXPECTED;
DSFXDistortion dsfxdistortion;
ZeroMemory(&dsfxdistortion, sizeof(DSFXDistortion));
dsfxdistortion.fGain = m_sliderGain.GetValue();
dsfxdistortion.fEdge = m_sliderEdge.GetValue();
dsfxdistortion.fPostEQCenterFrequency = m_sliderPostEQCenterFrequency.GetValue();
dsfxdistortion.fPostEQBandwidth = m_sliderPostEQBandwidth.GetValue();
dsfxdistortion.fPreLowpassCutoff = m_sliderPreLowpassCutoff.GetValue();
HRESULT hr = m_IDSFXDistortion->SetAllParameters(&dsfxdistortion);
if (FAILED(hr))
return hr;
hr = m_IDSFXDistortion->GetAllParameters(&dsfxdistortion);
if (FAILED(hr))
return hr;
m_sliderGain.SetValue(dsfxdistortion.fGain);
m_sliderEdge.SetValue(dsfxdistortion.fEdge);
m_sliderPostEQCenterFrequency.SetValue(dsfxdistortion.fPostEQCenterFrequency);
m_sliderPostEQBandwidth.SetValue(dsfxdistortion.fPostEQBandwidth);
m_sliderPreLowpassCutoff.SetValue(dsfxdistortion.fPreLowpassCutoff);
SetDirty(FALSE);
return S_OK;
}
LRESULT CDirectSoundFXDistortionPage::OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (!m_IDSFXDistortion)
return 1;
DSFXDistortion dsfxdistortion;
ZeroMemory(&dsfxdistortion, sizeof(DSFXDistortion));
m_IDSFXDistortion->GetAllParameters(&dsfxdistortion);
m_sliderGain.Init(GetDlgItem(IDC_SLIDER_Gain), GetDlgItem(IDC_EDIT_Gain), -60, 0, false);
m_sliderGain.SetValue(dsfxdistortion.fGain);
m_sliderEdge.Init(GetDlgItem(IDC_SLIDER_Edge), GetDlgItem(IDC_EDIT_Edge), 0, 100, false);
m_sliderEdge.SetValue(dsfxdistortion.fEdge);
m_sliderPostEQCenterFrequency.Init(GetDlgItem(IDC_SLIDER_PostEQCenterFrequency), GetDlgItem(IDC_EDIT_PostEQCenterFrequency), 100, 8000, true);
m_sliderPostEQCenterFrequency.SetValue(dsfxdistortion.fPostEQCenterFrequency);
m_sliderPostEQBandwidth.Init(GetDlgItem(IDC_SLIDER_PostEQBandwidth), GetDlgItem(IDC_EDIT_PostEQBandwidth), 100, 8000 , true);
m_sliderPostEQBandwidth.SetValue(dsfxdistortion.fPostEQBandwidth);
m_sliderPreLowpassCutoff.Init(GetDlgItem(IDC_SLIDER_PreLowpassCutoff), GetDlgItem(IDC_EDIT_PreLowpassCutoff), 100, 8000 , true);
m_sliderPreLowpassCutoff.SetValue(dsfxdistortion.fPreLowpassCutoff);
return 1;
}
LRESULT CDirectSoundFXDistortionPage::OnControlMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
LRESULT lr = MessageHandlerChain(m_rgpHandlers, uMsg, wParam, lParam, bHandled);
if (bHandled)
SetDirty(TRUE);
return lr;
}