Source code of Windows XP (NT5)
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// DirectSoundFXGarglePage.cpp : Implementation of CDirectSoundFXGarglePage
#include "stdafx.h"
#include "Dsdmoprp.h"
#include "DirectSoundFXGarglePage.h"
/////////////////////////////////////////////////////////////////////////////
// CDirectSoundFXGarglePage
const CRadioChoice::ButtonEntry g_rgWaveButtons[] =
{
IDC_RADIO_TRIANGLE, DSFXGARGLE_WAVE_TRIANGLE,
IDC_RADIO_SQUARE, DSFXGARGLE_WAVE_SQUARE,
0
};
CDirectSoundFXGarglePage::CDirectSoundFXGarglePage()
: m_radioWaveform(g_rgWaveButtons)
{
m_dwTitleID = IDS_TITLEDirectSoundFXGarglePage;
m_dwHelpFileID = IDS_HELPFILEDirectSoundFXGarglePage;
m_dwDocStringID = IDS_DOCSTRINGDirectSoundFXGarglePage;
m_rgpHandlers[0] = &m_sliderRate;
m_rgpHandlers[1] = &m_radioWaveform;
m_rgpHandlers[2] = NULL;
}
STDMETHODIMP CDirectSoundFXGarglePage::SetObjects(ULONG nObjects, IUnknown **ppUnk)
{
if (nObjects < 1 || nObjects > 1)
return E_UNEXPECTED;
HRESULT hr = ppUnk[0]->QueryInterface(IID_IDirectSoundFXGargle, reinterpret_cast<void**>(&m_IDSFXGargle));
return hr;
}
STDMETHODIMP CDirectSoundFXGarglePage::Apply(void)
{
if (!m_IDSFXGargle)
return E_UNEXPECTED;
DSFXGargle dsfxgargle;
ZeroMemory(&dsfxgargle, sizeof(DSFXGargle));
dsfxgargle.dwRateHz = static_cast<DWORD>(m_sliderRate.GetValue());
dsfxgargle.dwWaveShape = m_radioWaveform.GetChoice(*this);
HRESULT hr = m_IDSFXGargle->SetAllParameters(&dsfxgargle);
if (FAILED(hr))
return hr;
SetDirty(FALSE);
return S_OK;
}
LRESULT CDirectSoundFXGarglePage::OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (!m_IDSFXGargle)
return 1;
DSFXGargle dsfxgargle;
ZeroMemory(&dsfxgargle, sizeof(DSFXGargle));
m_IDSFXGargle->GetAllParameters(&dsfxgargle);
m_sliderRate.Init(GetDlgItem(IDC_SLIDER_Rate), GetDlgItem(IDC_EDIT_Rate), 1, 1000, true);
m_sliderRate.SetValue(static_cast<float>(dsfxgargle.dwRateHz));
m_radioWaveform.SetChoice(*this, dsfxgargle.dwWaveShape);
return 1;
}
LRESULT CDirectSoundFXGarglePage::OnControlMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
LRESULT lr = MessageHandlerChain(m_rgpHandlers, uMsg, wParam, lParam, bHandled);
if (bHandled)
SetDirty(TRUE);
return lr;
}