windows-nt/Source/XPSP1/NT/multimedia/directx/dmusic/dmtool/toolprops/timeshiftpage.cpp

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2020-09-26 03:20:57 -05:00
// TimeShiftPage.cpp : Implementation of CTimeShiftPage
#include "stdafx.h"
#include "ToolProps.h"
#include "TimeShiftPage.h"
/////////////////////////////////////////////////////////////////////////////
// CTimeShiftPage
CTimeShiftPage::CTimeShiftPage()
{
m_dwTitleID = IDS_TITLETimeShiftPage;
m_dwHelpFileID = IDS_HELPFILETimeShiftPage;
m_dwDocStringID = IDS_DOCSTRINGTimeShiftPage;
m_pTimeShift = NULL;
}
CTimeShiftPage::~CTimeShiftPage()
{
if (m_pTimeShift)
{
m_pTimeShift->Release();
}
}
STDMETHODIMP CTimeShiftPage::SetObjects(ULONG cObjects,IUnknown **ppUnk)
{
if (cObjects < 1 || cObjects > 1)
return E_UNEXPECTED;
return ppUnk[0]->QueryInterface(IID_IDirectMusicTimeShiftTool,(void **) &m_pTimeShift);
}
STDMETHODIMP CTimeShiftPage::Apply(void)
{
m_pTimeShift->SetRange((DWORD)m_ctRange.GetValue());
m_pTimeShift->SetOffset((long)m_ctOffset.GetValue());
m_bDirty = FALSE;
return S_OK;
}
LRESULT CTimeShiftPage::OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (m_pTimeShift)
{
m_ctRange.Init(GetDlgItem(IDC_RANGE),GetDlgItem(IDC_RANGE_DISPLAY),0,200,true);
m_ctOffset.Init(GetDlgItem(IDC_OFFSET),GetDlgItem(IDC_OFFSET_DISPLAY),-200,200,true);
long lValue;
m_pTimeShift->GetRange((DWORD *)&lValue);
m_ctRange.SetValue((float)lValue);
m_pTimeShift->GetOffset(&lValue);
m_ctOffset.SetValue((float)lValue);
}
return 1;
}
LRESULT CTimeShiftPage::OnCommand(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
LRESULT lr = m_ctRange.MessageHandler(uMsg, wParam,lParam, bHandled);
if (!bHandled)
lr = m_ctOffset.MessageHandler(uMsg, wParam, lParam, bHandled);
if (bHandled)
SetDirty(true);
return lr;
}
LRESULT CTimeShiftPage::OnSlider(UINT uMsg, WPARAM wParam,LPARAM lParam, BOOL& bHandled)
{
LRESULT lr = m_ctRange.MessageHandler(uMsg, wParam,lParam, bHandled);
if (!bHandled)
lr = m_ctOffset.MessageHandler(uMsg, wParam, lParam, bHandled);
if (bHandled)
SetDirty(true);
return lr;
}