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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "WinDisplay.h"
#include <windows.h>
using namespace std;
namespace avg {
WinDisplay::WinDisplay()
{
}
WinDisplay::~WinDisplay()
{
}
float WinDisplay::queryPPMM()
{
HDC hdc = CreateDC("DISPLAY", NULL, NULL, NULL);
return GetDeviceCaps(hdc, LOGPIXELSX)/25.4f;
}
float WinDisplay::queryRefreshRate()
{
float refreshRate;
// This isn't correct for multi-monitor systems.
HDC hDC = CreateDC("DISPLAY", NULL, NULL, NULL);
refreshRate = float(GetDeviceCaps(hDC, VREFRESH));
if (refreshRate < 2) {
refreshRate = 60;
}
DeleteDC(hDC);
return refreshRate;
}
}
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