80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
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/////////////////////////////////////////////////////////////////////////////
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// TopWin.cpp : Implementation of CTopWin, hidden top level window for handling system broadcast messages
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// Copyright (c) Microsoft Corporation 1999-2000.
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#include <stdafx.h>
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#ifndef TUNING_MODEL_ONLY
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#include <vrsegimpl.h>
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#include "vidctl.h"
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BOOL CTopWin::ProcessWindowMessage(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult, DWORD dwMsgMapID) {
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switch(uMsg) {
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case WM_TIMER:
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//
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// Do something to keep the screen saver from coming alive
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//
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//PostMessage(WM_CHAR,0,0); // didn't work
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//
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// Query the screen saver timeout value and set said value
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// to the value we get. This should have no real effect,
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// so I can't think of any possible side effects even if
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// this crashes half way through, etc.
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//
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if(m_pVidCtl){
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if(m_pVidCtl->m_State == STATE_PLAY && m_pVidCtl->m_pVideoRenderer){
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CComQIPtr<IMSVidVideoRenderer2> sp_VidVid(m_pVidCtl->m_pVideoRenderer);
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if(sp_VidVid){
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VARIANT_BOOL effects;
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HRESULT hr = sp_VidVid->get_SuppressEffects(&effects);
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if(SUCCEEDED(hr) && effects == VARIANT_TRUE){
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unsigned int TimeOut;
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if (SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0, &TimeOut, 0) == 0){
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TRACELM(TRACE_ERROR, "Could not get screen saver timeout");
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}
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else {
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if (SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, TimeOut, 0, 0) == 0){
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TRACELM(TRACE_ERROR,"Cannot set screen saver timeout");
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}
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else{
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TRACELM(TRACE_PAINT,"Successfully reset screen saver timeout");
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}
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}
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}
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}
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}
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}
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// No break...fall through
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case WM_MEDIAEVENT:
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case WM_POWERBROADCAST:
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case WM_DEVICECHANGE:
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case WM_DISPLAYCHANGE:
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// WM_QUERYENDSESSION?
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// WM_ENDSESSION?
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if (m_pVidCtl) {
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return m_pVidCtl->ProcessWindowMessage(hWnd, uMsg, wParam, lParam, lResult, dwMsgMapID);
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}
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break;
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case WM_USER + WMUSER_INPLACE_ACTIVATE:
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if (m_pVidCtl) {
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TRACELM(TRACE_PAINT, "CTopWin::ProcessWindowMessage() InPlaceActivate()");
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m_pVidCtl->InPlaceActivate(OLEIVERB_INPLACEACTIVATE, NULL);
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}
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break;
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case WM_USER + WMUSER_SITE_RECT_WRONG:
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if (m_pVidCtl) {
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TRACELM(TRACE_PAINT, "CTopWin::ProcessWindowMessage() OnSizeChange");
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m_pVidCtl->OnSizeChange();
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}
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break;
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}
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return FALSE;
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}
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#endif //TUNING_MODEL_ONLY
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// end of file - topwin.cpp
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