public Win32Monitor(DisplayDeviceW adapter, DisplayDeviceW?display)
{
Name = display != null ? display.Value.DeviceString : adapter.DeviceString;
AdapterName = adapter.DeviceName;
DeviceName = display == null ? "<<Unknown Device>>" : display.Value.DeviceName;
Debug.Assert(Name != null);
var dm = new DeviceMode();
dm.dmSize = (short)Marshal.SizeOf(dm);
User32.EnumDisplaySettingsW(adapter.DeviceName.PadRight(32, '\0'), (int)DisplaySettings.CurrentSettings, ref dm);
Win32Platform.CheckError("Enumerating display settings.");
Width = dm.dmPelsWidth;
Height = dm.dmPelsHeight;
IntPtr dc = Gdi32.CreateDCW("DISPLAY", adapter.DeviceName, null, IntPtr.Zero);
Debug.Assert(dc != IntPtr.Zero);
if (Win32Platform.IsWindows81OrGreater)
{
WidthPhysical = Gdi32.GetDeviceCaps(dc, DeviceCap.HorizontalSize);
HeightPhysical = Gdi32.GetDeviceCaps(dc, DeviceCap.VertSize);
}
else
{
WidthPhysical = (int)(dm.dmPelsWidth * 25.4f / Gdi32.GetDeviceCaps(dc, DeviceCap.LogPixelsX));
HeightPhysical = (int)(dm.dmPelsHeight * 25.4f / Gdi32.GetDeviceCaps(dc, DeviceCap.LogPixelsY));
}
Gdi32.DeleteDC(dc);
if ((adapter.StateFlags & DisplayDeviceStateFlags.ModesPruned) != 0)
{
ModesPruned = true;
}
var rect = new Rect
{
Left = dm.dmPosition.X,
Top = dm.dmPosition.Y,
Right = dm.dmPosition.X + dm.dmPelsWidth,
Bottom = dm.dmPosition.Y + dm.dmPelsHeight
};
User32.EnumDisplayMonitors(IntPtr.Zero, ref rect, MonitorCallback, null);
Win32Platform.CheckError("Creating monitor.");
}