///// <summary></summary>
///// <param name="identifier"></param>
///// <returns></returns>
//public static DisplayAdapter GetAdapter( DisplayDeviceId identifier )
//{
// foreach( var adapter in adaptersByDeviceName.Values )
// {
// if( adapter.Identifier.Equals( identifier ) )
// return adapter;
// }
// return null;
//}
#endregion Display adapters
#region Display monitors
///// <summary></summary>
///// <param name="identifier"></param>
///// <returns></returns>
//public static DisplayMonitor GetMonitor( DisplayDeviceId identifier )
//{
// foreach( var adapter in adaptersByDeviceName.Values )
// {
// foreach( var monitor in adapter.Monitors )
// {
// if( monitor.identifier.Equals( identifier ) )
// return monitor;
// }
// }
// return null;
//}
/// <summary>Returns a monitor given its handle (HMONITOR).</summary>
/// <param name="monitorHandle">The monitor handle.</param>
/// <returns>Returns the monitor associated with the specified handle, or null.</returns>
public static DisplayMonitor GetMonitorByHandle(IntPtr monitorHandle)
{
if (!isInitialized)
{
Update();
}
var monitorInfo = DisplayMonitor.GetInfo(monitorHandle);
if (adaptersByDeviceName.TryGetValue(monitorInfo.AdapterDeviceName, out DisplayAdapter adapter))
{
return(adapter.GetMonitorByHandle(monitorHandle));
}
return(null);
}
private void RefreshMonitorList()
{
var deviceName = base.DeviceName;
var allHandles = GetMonitorHandles();
var handles = new List <IntPtr>();
var hMax = allHandles.Count;
int h;
for (h = 0; h < hMax; ++h)
{
var info = DisplayMonitor.GetInfo(allHandles[h]);
if (deviceName.Equals(info.AdapterDeviceName, StringComparison.Ordinal))
{
handles.Add(allHandles[h]);
}
}
var removedMonitors = new List <string>(monitorsByDeviceName.Keys);
var addedMonitors = new List <DisplayMonitor>();
var primaryMonitorChanged = false;
var monitors = EnumDisplayDevices(deviceName, true);
DisplayMonitor displayMonitor;
h = 0;
for (var m = 0; m < monitors.Count; ++m)
{
var monitor = monitors[m];
var handle = IntPtr.Zero;
if ((monitor.State & (int)DisplayMonitorStateIndicators.Active) != 0 && (h < handles.Count))
{
handle = handles[h]; // FIXME - this is not the right handle when topology is Clone !
++h;
}
if (monitorsByDeviceName.TryGetValue(monitor.DeviceName, out displayMonitor))
{
displayMonitor.Refresh(ref monitor);
displayMonitor.Handle = handle;
removedMonitors.Remove(monitor.DeviceName);
}
else
{
displayMonitor = new DisplayMonitor(this, monitor, handle);
monitorsByDeviceName.Add(monitor.DeviceName, displayMonitor);
addedMonitors.Add(displayMonitor);
}
if (displayMonitor.IsPrimary && (primaryDisplayMonitor != displayMonitor))
{
primaryMonitorChanged = (primaryDisplayMonitor != null);
primaryDisplayMonitor = displayMonitor;
}
}
while (addedMonitors.Count > 0)
{
this.OnMonitorConnectedOrDisconnected(addedMonitors[0], true);
addedMonitors.RemoveAt(0);
}
while (removedMonitors.Count > 0)
{
deviceName = removedMonitors[0];
removedMonitors.RemoveAt(0);
displayMonitor = monitorsByDeviceName[deviceName];
monitorsByDeviceName.Remove(deviceName);
displayMonitor.OnDisconnected();
this.OnMonitorConnectedOrDisconnected(displayMonitor, false);
}
if (primaryMonitorChanged)
{
PrimaryMonitorChanged?.Invoke(this, EventArgs.Empty);
}
}
