mythdisplaywindows.cpp

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#include "windows.h"
 
// MythTV
#include "mythdisplaywindows.h"
#include "mythmainwindow.h"
 
MythDisplayWindows::MythDisplayWindows()
  : MythDisplay()
{
    Initialise();
}
 
MythDisplayWindows::~MythDisplayWindows()
{
}
 
void MythDisplayWindows::UpdateCurrentMode(void)
{
    QWidget* widget = m_widget;
 
    if (!widget)
    {
        if (!HasMythMainWindow())
        {
            MythDisplay::UpdateCurrentMode();
            return;
        }
        widget = qobject_cast<QWidget*>(MythMainWindow::getMainWindow());
    }
    WId win = 0;
    if (widget)
        win = widget->winId();
 
    HDC hdc = GetDC((HWND)win);
    if (!hdc)
    {
        MythDisplay::UpdateCurrentMode();
        return;
    }
 
    int rate   = GetDeviceCaps(hdc, VREFRESH);
    m_physicalSize = QSize(GetDeviceCaps(hdc, HORZSIZE),
                           GetDeviceCaps(hdc, VERTSIZE));
    m_resolution = QSize(GetDeviceCaps(hdc, HORZRES),
                         GetDeviceCaps(hdc, VERTRES));
    m_modeComplete = true;
 
    // see http://support.microsoft.com/kb/2006076
    switch (rate)
    {
        case 23:  m_refreshRate = 23.976;  break;
        case 29:  m_refreshRate = 29.970;  break;
        case 47:  m_refreshRate = 47.952;  break;
        case 59:  m_refreshRate = 59.940;  break;
        case 71:  m_refreshRate = 71.928;  break;
        case 119: m_refreshRate = 119.880; break;
        default:  m_refreshRate = static_cast<double>(rate);
    }
}