/// <summary>
/// Validate the header and CRC-32 of this structure.
/// </summary>
/// <returns>True if the structure is valid.</returns>
/// <remarks></remarks>
public bool Validate()
{
bool ValidateRet = default;
var mm = new MemPtr();
mm.FromStruct(this);
mm.UIntAt(4L) = 0U;
// validate the crc and the signature moniker
ValidateRet = HeaderCRC32 == mm.CalculateCrc32() && Signature == 0x5452415020494645;
mm.Free();
return(ValidateRet);
}
/// <summary>
/// Enumerate all display monitors.
/// </summary>
/// <returns>An array of PrinterDeviceInfo objects.</returns>
/// <remarks></remarks>
public static MonitorDeviceInfo[] EnumMonitors()
{
var minf = _internalEnumerateDevices <MonitorDeviceInfo>(DevProp.GUID_DEVINTERFACE_MONITOR, ClassDevFlags.DeviceInterface | ClassDevFlags.Present);
var mon = new Monitors();
DISPLAY_DEVICE dd;
dd.cb = (uint)Marshal.SizeOf <DISPLAY_DEVICE>();
var mm = new MemPtr();
mm.Alloc(dd.cb);
mm.UIntAt(0) = dd.cb;
if (minf is object && minf.Count() > 0)
{
foreach (var x in minf)
{
foreach (var y in mon)
{
if (MultiMon.EnumDisplayDevices(y.DevicePath, 0, mm, MultiMon.EDD_GET_DEVICE_INTERFACE_NAME))
{
dd = mm.ToStruct <DISPLAY_DEVICE>();
DEVMODE dev = new DEVMODE();
dev.dmSize = (ushort)Marshal.SizeOf <DEVMODE>();
dev.dmDriverExtra = 0;
var mm2 = new MemPtr(65535 + dev.dmSize);
var b = MultiMon.EnumDisplaySettingsEx(y.DevicePath, 0xffffffff, ref dev, 0);
if (!b)
{
var s = NativeErrorMethods.FormatLastError();
}
mm2.Free();
if (dd.DeviceID.ToUpper() == x.DevicePath.ToUpper())
{
x.Source = y;
break;
}
}
}
}
}
mm.Free();
if (minf is null)
{
return(null);
}
Array.Sort(minf, new Comparison <MonitorDeviceInfo>((x, y) => { if (x.FriendlyName is object && y.FriendlyName is object)
{
return(string.Compare(x.FriendlyName, y.FriendlyName));
}
else
{
return(string.Compare(x.Description, y.Description));
} }));
return(minf);
}